FR3126312A1 - COSMETIC COMPOSITION CONTAINING A BLEND OF RHEOLOGY MODIFIER AND STABILIZER POLYMERS - Google Patents

Abstract

The present disclosure relates to a rheology modifying and stabilizing polymer blend, cosmetic compositions comprising the polymer blend, and methods of stabilizing, viscosity modifying, and treating of the skin using the mixture of polymers or using cosmetic compositions comprising the mixture of polymers. The rheology modifier and stabilizer polymer blend comprises: (i) a carbomer; (ii) an acrylates/C10-30 alkyl acrylate cross-linked polymer; and (iii) an ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer. Figure for abstract: NONE

Description

COSMETIC COMPOSITION CONTAINING A BLEND OF RHEOLOGY MODIFIER AND STABILIZER POLYMERS

area of disclosure

The present disclosure relates to cosmetic compositions comprising a blend of rheology modifier and stabilizer polymers, and methods of treating skin using the cosmetic compositions. Further, the present disclosure relates to methods for modifying the viscosity and/or stabilizing a composition using the mixture of rheology modifier and stabilizer polymers.

context of the disclosure

A common problem associated with formulating compositions, especially compositions comprising active ingredients, is ensuring physical stability. Many active ingredients, including electrolytes, can cause stability issues, especially when used in large amounts. The consequences of stability problems are significant. For example, stability issues can lead to partial or even total loss of product integrity, loss of color, bad odor, changes in viscosity, etc. With respect to active ingredients, stability issues reduce or eliminate activity, and prevent active ingredients from reaching their intended target.

Many active ingredients, especially electrolytes, are unstable and sensitive to temperature, pH, light and oxidation. This is why encapsulation processes have been employed to protect them from unwanted degradation and used to control the release of the active ingredient. Antioxidants, for example, are substances that protect ingredients such as fragrances, natural fats and oils from unstable molecules known as free radicals. Antioxidants interact with free radicals, stabilizing them and preventing damage caused by them. Typically, antioxidants must be soluble in the ingredients they protect. Butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), and tocopherols (vitamin E) are common oil-soluble antioxidants. Propyl gallate is an example of a water-soluble antioxidant.

Many ingredients in cosmetics, including anti-aging products and skincare products, are unstable and rapidly degrade when exposed to atmospheric oxygen, light or heat. To counter this degradation, the active ingredients have been incorporated into complexes for protection, for example, complexed with cyclodextrin. For example, retinol is a useful anti-wrinkle ingredient that is sensitive to oxygen and light. It has been found that complexing retinol with cyclodextrin gives it a stabilizing effect.

High pressure homogenizers can be used in the process of processing compositions, including cosmetic compositions, to form products such as emulsions, creams, sunscreens, makeups and perfumes. Homogenization is widely used in the cosmetics industry to produce homogeneous and stable emulsions. Through high pressure homogenization, particle size can be reduced to avoid phase separation, distribute various ingredients evenly and change viscosity.

Many cosmetic compositions for the treatment of the skin aim to provide active ingredients for absorption into the skin. The skin acts as a natural barrier between the internal and external environments and therefore plays an important role in vital biological functions such as protection against mechanical and chemical injury, microorganisms and ultraviolet damage. However, the health and appearance of the skin can deteriorate due to environmental factors, genetic makeup, nutrition and sun exposure.

Environmental pollution conditions are rapidly worsening and becoming increasingly evident in the daily lives of consumers around the world. The damage of pollution on human skin is also increasingly evident. Human skin is also subjected to various attacks by extrinsic factors such as ultraviolet (UV) radiation, environmental pollution, wind, heat, infrared radiation, low humidity, strong surfactants, abrasives, etc. Recent studies suggest that in addition to UV radiation, other environmental factors contribute to the development of solar lentigines, including air pollution. Ultimately, these factors result in visible signs of skin damage including small brown spots on the skin, especially in older people.

Typical skin damage includes fine lines, wrinkles, hyperpigmentation, paleness, sagging, dark bags under the eyes, puffy eyes, large pores, visible dead skin, i.e. i.e. flaking, flaking, dryness and roughness. Consumers want to slow the progression of skin damage and reduce the effects of aging, especially on the face and around the eyes. Radiant, clear skin looks youthful and is a sign of good health and vitality. Accordingly, there is a continuing need for new and improved formulations that improve the health and visual appearance of the skin.

There is a need for compositions which are physically stable and effective. The inventors of the present case have discovered that a unique combination of certain polymers makes it possible to obtain a mixture of rheology modifying and stabilizing polymers. The mixture of rheology modifier and stabilizer polymers is particularly well suited for use in cosmetic compositions, including cosmetic compositions for the treatment of the skin.

disclosure summary

The present disclosure relates to cosmetic compositions comprising a blend of rheology modifier and stabilizer polymers (also referred to throughout the disclosure simply as a "polymer blend"), and methods of treating skin with the cosmetic compositions. The blend of rheology modifier and stabilizer polymers imparts the compositions with a desired viscosity and stabilizes the compositions, allowing the compositions to carry and deliver high amounts of active ingredients. The present disclosure also relates to the rheology modifier and stabilizer polymer blends per se, and to methods of modifying the viscosity and/or stabilizing compositions, such as cosmetic compositions, using the polymer blend.

The inventors have discovered a unique blend of three polymers that interact with each other to dramatically improve stability and positively impact viscosity. The unique blend of polymers gives compositions containing high amounts of active ingredients an amazing degree of stability without causing excessive thickening. Often, the amount of stabilizer(s) needed to adequately stabilize a composition results in a product that is too viscous. If the amount of stabilizer(s) is reduced to generate a less viscous product, the stabilizing effects of the stabilizer(s) are not sufficient to maintain product stability. The polymer blends in this case are successful in stabilizing high amounts of active ingredients without unduly thickening the composition. The viscosity of the compositions can be easily modified to achieve the desired thickness without jeopardizing the integrity and stability of the final product.

The rheology modifier and stabilizer polymer blend includes:

(i) a carbomer;

(ii) an acrylates/C10-30 alkyl acrylate crosslinked polymer; And

(iii) an ammonium acryloyldimethyltaurate / steareth-25 methacrylate cross-linked polymer.

The amount of carbomer in the polymer blend is typically about 25 to 75 wt%, preferably about 35 to about 65 wt%, or more preferably about 40 to about 60 wt%. , based on the total weight of the rheology modifier and stabilizer polymer blend.

The amount of acrylates/C10-30 alkyl acrylate crosslinked polymer in the polymer blend is typically about 5 to about 50% by weight, preferably about 10 to about 40% by weight, more preferably from about 15 to about 25% by weight, based on the total weight of the rheology modifier and stabilizer polymer blend.

The amount of ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosslinked polymer in the polymer blend is typically about 5 to about 50% by weight, preferably about 10 to about 40% by weight, more preferably from about 15 to about 25% by weight, based on the total weight of the rheology modifier and stabilizer polymer blend.

In some cases, the total amount of (i) carbomer exceeds the individual amount of (ii) acrylates/C10-30 alkyl acrylate crosslinked polymer and/or exceeds the individual amount of (iii) ammonium acryloyldimethyltaurate/ steareth-25 methacrylate in the polymer blend. Additionally, in some cases, the total amount of (i) carbomer exceeds the combined amount of (ii) acrylates/C10-30 alkyl acrylate crosslink polymer and (iii) ammonium acryloyldimethyltaurate/ammonium steareth methacrylate crosslink polymer. 25 in the polymer blend. Further, in some instances, the weight ratio (i) to ((ii)+(iii)) is about 0.5:1 to about 2:1, preferably about 0.7:1 to about 1.5:1, more preferably about 0.8:1 to about 1.2:1, even more preferably about 1:1.

The mixture of rheology modifier and stabilizer polymers can be incorporated into a composition comprising water (i.e. aqueous compositions), for example, an aqueous cosmetic composition such as a cosmetic composition intended to be applied on the skin. Accordingly, the present disclosure relates to a cosmetic composition comprising:

(a) a blend of rheology modifier and stabilizer polymers comprising:

(i) a carbomer;

(ii) an acrylates/C10-30 alkyl acrylate crosslinked polymer; And

(iii) an ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer; And

(b) water.

The amount of carbomer in the polymer blend included in the cosmetic composition is typically about 25 to 75% by weight, preferably about 35 to about 65% by weight, or more preferably about 40 to about 60% by weight, based on the total weight of the rheology modifier and stabilizer polymer blend.

The amount of acrylates/C10-30 alkyl acrylate crosslinked polymer in the polymer blend included in the cosmetic composition is typically about 5 to about 50% by weight, preferably about 10 to about 40% by weight. , more preferably about 15 to about 25% by weight, based on the total weight of the rheology modifier and stabilizer polymer blend.

The amount of ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer in the polymer blend included in the cosmetic composition is typically about 5 to about 50% by weight, preferably about 10 to about 40% by weight , more preferably about 15 to about 25% by weight, based on the total weight of the rheology modifier and stabilizer polymer blend.

In some cases, the total amount of (i) carbomer in the cosmetic composition exceeds the combined amount of (ii) acrylates/C10-30 alkyl cross-acrylate cross-linked polymer and (iii) ammonium acryloyldimethyltaurate/ammonium methacrylate cross-linked polymer. steareth-25 in the cosmetic composition. More typically, however, the weight ratio (i) to ((ii)+(iii)) in the cosmetic composition can be from about 0.5:1 to about 2:1, preferably about 0.7: 1 to about 1.5:1, more preferably about 0.8:1 to about 1.2:1, even more preferably about 1:1.

The cosmetic composition typically includes from about 0.1 to about 10% by weight, preferably from about 0.5 to about 5% by weight, more preferably from about 0.5 to about 2% by weight of the mixture of polymers, based on the total weight of the cosmetic composition. The amounts of (i), (ii) and (iii) are presented above relative to the total weight of the total weight of the mixture of rheology modifier and stabilizer polymers. However, the amounts of (i), (ii) and (iii) can also be defined relative to the total weight of the cosmetic composition, instead of the total weight of the mixture of rheology modifier and stabilizer polymers, as illustrated below .

In some cases, the cosmetic composition comprises:

(a)(i) 0.1 to 8% by weight of a carbomer;

(a)(ii) 0.05 to 5% by weight of acrylates/C10-30 alkyl acrylate crosslinked polymer;

(a)(iii) 0.05 to 5% by weight of ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer; And

(b) 60 to 90% by weight water;

wherein all weight percentages are based on the total weight of the cosmetic composition.

The amount of carbomer in the cosmetic composition can be between about 0.1 and about 8% by weight, preferably between about 0.1 and about 6% by weight, more preferably between about 0.2 and about 5% by weight, relative to the total weight of the cosmetic composition.

The total amount of acrylates/C10-30 alkyl acrylate crosslinked polymer in the cosmetic composition can be from about 0.05 to about 5% by weight, preferably from about 0.05 to about 4% by weight, more preferably, from about 0.1 to about 2% by weight, based on the total weight of the cosmetic composition.

The total amount of ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosslinked polymer in the cosmetic composition may be from about 0.05 to about 5% by weight, preferably from about 0.05 to about 4% by weight, more preferably, from about 0.1 to about 2% by weight, based on the total weight of the cosmetic composition.

In some cases, the total amount of (a)(i) carbomer in the cosmetic composition exceeds the combined amount of (a)(ii) acrylates/C10-30 alkyl acrylate cross-linked polymer and (a)(iii) cross-linked ammonium acryloyldimethyltaurate / steareth-25 methacrylate in the cosmetic composition. More typically, however, the weight ratio (a)(i) to (a)((ii)+(a)(iii)) in the cosmetic composition can be from about 0.5:1 to about 2:1, preferably about 0.7:1 to about 1.5:1, more preferably about 0.8:1 to about 1.2:1, even more preferably about 1:1.

The pH of the cosmetic composition can vary. In some cases, the pH of the cosmetic composition can be between about 5 and about 9, preferably between about 5.5 and about 8, more preferably between about 5.5 and about 7 or between 5.5 and less. of 7. In some cases, the pH of the cosmetic composition is less than 7, for example, 6.8 or less, 6.5 or less, 6.2 or less, or 6 or less.

The cosmetic composition can come in a variety of different forms, for example, a gel, an emulsion, a lotion, a cream, etc. Preferably, the cosmetic composition is in the form of a gel or in the form of an emulsion, in particular an oil-in-water emulsion. When the cosmetic composition is in the form of a gel, emulsifiers and/or surfactants may not be necessary, i.e. the cosmetic composition may be free of emulsifiers and/or surfactants. Nevertheless, in some cases, the gel may include emulsifiers and/or surfactants.

When the cosmetic composition is in the form of an emulsion, it typically includes one or more fatty compounds (to form a fatty phase) and one or more emulsifiers and/or surfactants. The fatty compounds can include silicones, but in some cases the fatty compounds are not, and do not include, silicones such as cross-linked siloxane elastomers. Additionally, the cosmetic compositions can be free or substantially free of silicones, including cross-linked siloxane elastomers. Emulsifiers and/or surfactants are useful for emulsifying cosmetic compositions.

In some instances, the cosmetic composition includes from about 1 to about 40% by weight, preferably from about 1 to about 30% by weight, more preferably from about 1 to about 25% by weight, even further more preferably from about 2 to about 15% by weight of one or more fatty compounds.

The cosmetic compositions can include from about 0.1 to about 10% by weight, preferably from about 0.1 to about 8% by weight, more preferably from about 0.1 to about 6% by weight, even more preferably from about 0.2 to about 4% by weight of one or more emulsifiers and/or surfactants. Non-limiting examples of emulsifiers include glycerol esters and derivatives, alkoxylated carboxylic acids (eg, PEG-30 dipolyhydroxystearate), oxyalkylenated fatty acid esters of glycerol, oxyalkylenated fatty acid esters of sorbitan, esters of oxyalkylenated fatty acids, oxyalkylenated fatty alkyl ethers, sugar esters (eg arachidyl glucoside) and mixtures thereof.

Cosmetic compositions can also include one or more water-soluble solvents. Non-limiting examples include glycols, glycerin, C1-C4 alcohols, polyhydric alcohols, and a mixture thereof. For example, the total amount of water-soluble solvents in the cosmetic composition can be from about 1 to about 40% by weight, preferably from about 1 to about 30% by weight, more preferably from about 5 to about 25% by weight, even more preferably from about 10 to about 25% by weight, based on the total weight of the cosmetic composition.

The viscosity of cosmetic compositions can vary and can be adjusted depending on the shape and desired properties of the composition. Nevertheless, in some cases, the viscosity of cosmetic compositions can be from about 5,000 cP to about 100,000 cP at 25°C. Viscosity can be measured using a Brooksfield DV-1 viscometer fitted with a T-bar spindle, reading at 30 seconds and 10 rpm. In some instances, the viscosity of the cosmetic compositions may be from about 5,000 cP to about 80,000 cP, from about 5,000 cP to about 50,000 cP, from about 5,000 cP to about 25,000 cP, from about 5,000 cP to approximately 10,000 cP, 10,000 cP to approximately 100,000 cP, approximately 25,000,000 cP to approximately 100,000 cP, approximately 50,000 cP to approximately 100,000 cP, approximately 100,000 cP at about 100,000 cP and from about 100,000 cP to about 100,000 cP, 000 cP, about 25,000 cP to about 100,000 cP, about 50,000 to about 100,000 cP, about 75,000 cP to about 100,000 cP, about 10,000 cP to about 90,000 cP, about 25,000 cP to about 75,000 cP, or about 30,000 cP to about 60,000 cP at 25°C.

As already noted, the polymer mixtures of the present case are particularly well suited for use in cosmetic compositions, in particular, cosmetic compositions comprising one or more active ingredients, preferably one or more active ingredients for treating the skin (ingredients active ingredients for the skin). Non-limiting examples of active ingredients for the skin include anti-aging agents, depigmenting agents, anti-wrinkle agents, agents treating oily skin, matting agents, antioxidants, vitamins, anti-acne agents, anti-aging agents. -inflammatory and electrolytes. In some cases, it is preferable that the active ingredient(s) for the skin be chosen from C-glycoside derivatives (for example, hydroxypropyl tetrahydropyrantriol), a hyaluronic acid or derivative thereof (for example, sodium hyaluronate) , salicylic acid or a derivative thereof (eg capryloyl salicylic acid), an ester thereof or a salt thereof.

The total amount of skin active ingredients in cosmetic compositions may vary. However, in some cases, the total amount of skin active ingredients is about 0.1 to about 20% by weight, preferably about 0.5 to about 15% by weight, more preferably about 0.5 to about 15% by weight. about 1 to about 15% by weight, even more preferably about 1 to about 10% by weight, based on the total weight of the cosmetic composition.

The present disclosure relates to methods of stabilizing and/or modifying the viscosity of a composition, for example, a cosmetic composition such as a cosmetic composition for the treatment of the skin. The method of stabilizing and/or modifying the viscosity of a composition, including cosmetic compositions, includes incorporating the blend of rheology modifier and stabilizer polymers as described herein into the composition. The blend of rheology modifier and stabilizer polymers is used in amounts sufficient to stabilize and/or modify the viscosity of the composition. For example, the rheology modifier and stabilizer polymer blend may be added in amounts ranging from about 0.1 to about 10% by weight, preferably from about 0.5 to about 5% by weight, more preferably from about 0.5 to about 2% by weight of the polymer blend, based on the total weight of the composition. The methods relate to the stabilization of one or more active ingredients in the composition. The active ingredient(s) may be included in various amounts depending on the active ingredient to be stabilized and the desired amount of active ingredient to be included in the composition. Nevertheless, the total amount of active ingredients in cosmetic compositions may vary. However, in some instances, the total amount of active ingredients, such as skin active ingredients, may be from about 0.1 to about 20% by weight, preferably from about 0.5 to about 15% by weight, more preferably about 1 to about 15% by weight, even more preferably about 1 to about 10% by weight, based on the total weight of the cosmetic composition.

Finally, the present disclosure relates to the treatment of the skin using the cosmetic compositions described in this document. The methods include applying the cosmetic composition to skin, for example, facial skin. In some cases, the cosmetic composition may remain on the face (leave-in product). In other cases, however, the cosmetic composition can be rinsed off the face after being applied to the skin for a certain time (rinse-off product).

DETAILED DESCRIPTION OF THE DISCLOSURE

The rheology modifier and stabilizer polymer blends according to the present disclosure include:

(i) a carbomer;

(ii) an acrylates/C10-30 alkyl acrylate crosslinked polymer; And

(iii) an ammonium acryloyldimethyltaurate / steareth-25 methacrylate cross-linked polymer.

Carbomer is a term used for a range of polymers made from acrylic acid. Therefore, the term carbomer is equivalent to the term poly(acrylic acid) (PAA), a high molecular weight polymer of acrylic acid. The IUPAC name is poly(1-carboxyethylene). They can be homopolymers of acrylic acid, or crosslinked with an allyl ether of pentaerythritol, an allyl ether of sucrose or an allyl propylene ether. In an aqueous solution at neutral pH, PAA is an anionic polymer, i.e. many side chains of PAA lose their protons and acquire a negative charge. A particularly preferred carbomer for use in the polymer blends and compositions herein is SYNTHALEN K produced by 3V, INCI name "carbomer".

The amount of carbomer in the blend of rheology modifier and stabilizer polymers can vary. In some cases, the total amount of carbomer in the polymer blend is approximately 25-75% by weight, based on the total weight of the rheology modifier and stabilizer polymer blend. In some cases, the total amount of carbomer in the rheology modifier and stabilizer polymer blend is about 20 to 70 wt%, about 30 to about 70 wt%, about 35 to about 65 wt%, weight, from about 40 to about 60% by weight, based on the total weight of the mixture of rheology modifier and stabilizer polymers.

The acrylates/C10-30 alkyl acrylate crosslinked polymer is a copolymer. The formation of the acrylates/C10-30 alkyl acrylate cross-linked polymer occurs when the C10-30 acrylate is combined with acrylic acid and methacrylic acid monomers. While carbomers are polymers of acrylic acid monomers, acrylates/C10-30 alkyl acrylate cross-linked polymer is made of a mixture of acrylic acid and methacrylic acid. A particularly preferred acrylates/C10-30 alkyl acrylate crosspolymer for use in the polymer blends and compositions herein is CARBOPOL ULTREZ-21 available from Lubrizol, from INCI: "Acrylates/C10-30 alkyl acrylate crosspolymer ".

The amount of acrylates/C10-30 alkyl acrylate crosslinked polymer in the rheology modifier and stabilizer polymer blend can vary. In some instances, the total amount of the acrylates/C10-30 alkyl acrylate crosslinked polymer in the rheology modifier and stabilizer polymer blend is from about 5 to about 50% by weight, based on the total weight of the blend. rheology modifier and stabilizer polymers. In some instances, the total amount of the acrylates/C10-30 alkyl acrylate crosslinked polymer in the rheology modifier and stabilizer polymer blend is about 10 to about 40% by weight, about 10 to about 30% by weight, from about 20 to about 40% by weight, from about 15 to about 35% by weight, from about 20 to about 30% by weight, or from about 22 to about 28% by weight, with respect to to the total weight of the mixture of rheology modifier and stabilizer polymers.

Ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer is also called 1-propapnesulphonic acid, 2-methyl-2-[(1-oxo-2-propenyl)amino]-, monoammonium salt, polymers with the 2- docosylpoly(oxyethylene) methyl-2-propenoate (25 mol EO on average). It is a copolymer of ammonium acryloyldimethyltaurate and steareth-25 methacrylate monomers. The ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer used in the polymer blends and compositions of the present case can be obtained from Clairant under the brand name ARISTOFLEX HMS, INCI name: “ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosspolymer” .

The amount of ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer in the rheology modifier and stabilizer polymer blend may vary. In some instances, the total amount of the acryloyldimethyltaurate/steareth-25 methacrylate crosslinked polymer in the rheology modifier and stabilizer polymer blend is from about 5 to about 50% by weight, based on the total weight of the modifier polymer blend. and rheology stabilizer. In some instances, the total amount of the ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosslinked polymer in the rheology modifier and stabilizer polymer blend is about 10 to about 40% by weight, about 10 to about 30% by weight, from about 20 to about 40% by weight, from about 15 to about 35% by weight, from about 20 to about 30% by weight, or from about 22 to about 28% by weight, with respect to to the total weight of the mixture of rheology modifier and stabilizer polymers.

The amounts of (i) carbomer, (ii) acrylates/C10-30 alkyl acrylate crosslink polymer, and (iii) ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosslink polymer in the rheology modifier and stabilizer polymer blend may vary from each other. For example, in some cases, the total amount of (i) carbomer is greater than the individual amount of (ii) acrylates/C10-30 alkyl acrylate crosslinked polymer and/or greater than the individual amount of (iii) polymer cross-linked ammonium acryloyldimethyltaurate / steareth-25 methacrylate. However, the total amount of (i) carbomer may be greater than the combined amounts of (ii) acrylates/C10-30 alkyl acrylate cross-linked polymer and (iii) acryloyldimethyl-ammonium taurate/steareth-25 methacrylate cross-linked polymer. . In some cases, the weight ratio (i) to ((ii)+(iii)) is from about 0.5:1 to about 2:1. However, in some cases, the weight ratio (i) to ((ii)+(iii)) is about 0.5:1 to about 1.9:1, about 0.5:1 to about 1 .8:1, about 0.5:1 to about 1. 6:1, about 0.6:1 to about 1.5:1, about 0.7:1 to about 1.4:1, about 0.8:1 to about 1.3:1, about 0.9:1 to about 1.2:1, about 0.9:1 to about 1.1:1, or about 1:1.

The mixture of rheology modifier and stabilizer polymers can be incorporated into a composition comprising water (an aqueous composition), for example, a cosmetic composition including a cosmetic composition for application to the skin. Thus, the compositions according to the present disclosure include:

(a) a blend of rheology modifier and stabilizer polymers comprising:

(i) a carbomer;

(ii) an acrylates/C10-30 alkyl acrylate crosslinked polymer; And

(iii) an ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer; And

(b) water.

The amounts of polymers ((i), (ii) and (iii)) in the composition comprising water can be in accordance with the amounts presented above, relative to the total weight of the mixture of rheology modifier and stabilizer polymers. The ratio of polymers ((i), (ii) and (iii)) in the composition comprising water can also be in accordance with the ratios presented above.

The amount of carbomer in the cosmetic composition can vary. In some cases, the amount of carbomer in the cosmetic composition can be between about 0.1 and about 10% by weight, based on the total weight of the cosmetic composition. Further, in some cases, the amount of carbomer can be about 0.1 to about 8 wt%, about 0.1 to about 6 wt%, about 0.1 to about 5 wt%, about 0 1 to about 4% by weight, about 0.1 to about 2% by weight, about 0.2 to about 10% by weight, about 0.2 to about 8% by weight, about 0.2 to about 6% by weight, about 0.2 to about 5% by weight, about 0.1 to about 4% by weight, about 0.1 to about 2% by weight, about 0.2 to about 5% by weight, about 0, 2 to about 4% by weight, about 0.2 to about 2% by weight, about 0.5 to about 10% by weight, about 0.5 to about 8% by weight, about 0.5 to about 5% by weight, about 0.5 to about 4% by weight, or about 0.5 to about 2% by weight, relative to the total weight of the cosmetic composition.

The total amount of acrylates/C10-30 alkyl acrylate cross-linked polymer in the cosmetic composition may vary. In some cases, the total amount of acrylates/C10-30 alkyl acrylate crosslinked polymer in the cosmetic composition is about 0.05 to about 5% by weight. In addition, in some cases, the total amount of acrylates/C10-30 alkyl acrylate crosslinked polymer is about 0.05 to about 4% by weight, about 0.05 to about 3% by weight, about 0 0.05 to about 2% by weight, 0.05 to about 1% by weight, about 0.1 to about 5% by weight, about 0.1 to about 4% by weight, about 0.1 to about 3% by weight, about 0.1 to about 2% by weight, about 0.1 to about 1% by weight, about 0.2 to about 5% by weight, about 0.2 to about 4% by weight, about 0, 2 to about 3% by weight, about 0.2 to about 2% by weight, or about 0.2 to about 1% by weight, relative to the total weight of the cosmetic composition.

The total amount of ammonium acryloyldimethyltaurate / steareth-25 methacrylate cross-linked polymer in the cosmetic composition may vary. In some instances, the total amount of ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer in the cosmetic composition is about 0.05 to about 5% by weight, about 0.1 to about 3% by weight, about 0.1 to about 2% by weight, about 0.1 to about 1% by weight, about 0.2 to about 5% by weight, about 0.2 to about 4% by weight, about 0.2 to about 3 % by weight, about 0.2 to about 2% by weight, or about 0.2 to about 1% by weight, relative to the total weight of the cosmetic composition.

The amount of water in the cosmetic composition may vary. In some cases, the total amount of water in the cosmetic composition is between about 50 and about 95% by weight of water. In addition, in some cases, the total amount of water in the cosmetic composition is between about 50 and about 90% by weight, about 50 and about 85% by weight, about 50 and about 80% by weight, about 60 and about 95% by weight, about 60 and about 90% by weight, about 60 and about 85% by weight, about 60 and about 80% by weight, about 65 and about 95% by weight, about 65 and about 90% by weight , or approximately 65 and approximately 85% by weight, relative to the total weight of the cosmetic composition.

In some cases, the total amount of (a)(i) carbomer in the cosmetic composition exceeds the individual amount of (a)(ii) acrylates/C10-30 alkyl acrylate crosslinked copolymer and/or the individual amount of ( a)(iii) cross-linked ammonium acryloyldimethyltaurate/steareth-25 methacrylate copolymer in the cosmetic composition. In addition, the total amount of (a)(i) carbomer in the cosmetic composition may exceed the combined amount of (a)(ii) cross-linked acrylates/C10-30 alkyl acrylate copolymer and (a)(iii) cross-linked ammonium acryloyldimethyltaurate / steareth-25 methacrylate in the cosmetic composition. In some cases, the weight ratio ((a)(i) to ((a)(ii)+(a)(iii)) is from about 0.5:1 to about 2:1. However, in some case, the weight ratio ((a)(i) to ((a)(ii)+(a)(iii)) is about 0.5:1 to about 1.9:1, about 0.5: 1 to about 1.8:1, about 0.5:1 to about 1. 6:1, about 0.6:1 to about 1.5:1, about 0.7:1 to about 1.4:1 , about 0.8:1 to about 1.3:1, about 0.9:1 to about 1.2:1, about 0.9:1 to about 1.1:1, or about 1:1.

The pH of the cosmetic composition can vary. In some cases, the pH of the cosmetic composition is about 5 to about 9. In addition, in some cases the pH of the cosmetic composition is 5 to 8, 5 to 7, about 5.5 to about 9, about 5.5 to about 8, about 5.5 to about 7, about 6 to about 9, about 6 to about 8, or about 6 to about 7. In addition, in some cases, the pH of the cosmetic composition is lower to 7, for example, 6.8 or less, 6.5 or less, 6.2 or less, or 6 or less.

The cosmetic composition can come in a variety of different forms, for example a gel, an emulsion, a lotion, a cream, etc. Preferably, the cosmetic composition is in the form of a gel or in the form of an emulsion, in particular an oil-in-water emulsion. When the cosmetic composition is in the form of a gel, emulsifiers and/or surfactants may not be necessary, i.e. the cosmetic composition may be free of emulsifiers and/or surfactants. Nevertheless, in some cases, the gel may include emulsifiers and/or surfactants.

When the cosmetic composition is in the form of an emulsion, it typically includes one or more fatty compounds (to form a fatty phase) and one or more emulsifiers and/or surfactants (to incorporate the fatty phase and an aqueous phase). The fatty compounds can include silicones, but in some cases the fatty compounds are free of silicones. Furthermore, the cosmetic composition can be free or essentially free of silicones. Emulsifiers and/or surfactants are useful for emulsifying the cosmetic composition.

Non-limiting examples of fatty compounds include fatty alcohols, fatty acids, fatty esters, oils, waxes, triglycerides, derivatives thereof and mixtures thereof. In some cases, the fatty ester may be chosen from ethoxylated fatty esters, sorbitan fatty esters, stearate esters, behenate esters, arachidate esters, palmitate esters, fatty acid esters of a sugar, and their mixtures. In other cases, the fatty ester chosen from purcellin oil (cetearyl octanoate), isopropyl myristate, isopropyl palmitate, C12-C15 alkyl benzoate, 2-ethylphenyl benzoate, isopropyl lanolate , hexyl laurate, diisopropyl adipate, isononyl isononanoate, oleyl erucate, 2-ethylhexyl palmitate, isostearyl isostearate, diisopropyl sebacate, octanoates, decanoates or ricinoleates of alcohols or polyalcohols, hydroxy esters and pentaerythritol esters, and mixtures thereof. The fatty compounds may include one or more fatty alcohols (eg, arachidyl alcohol, behenyl alcohol, cetearyl alcohol, etc.), one or more triglycerides (eg, caprylic/capric triglyceride), isononyl isononanoate, cetyl ethylhexanoate, and their mixtures. A more comprehensive list of useful fatty compounds is presented below under the heading "Fatty Compounds."

The total amount of fatty compounds in the cosmetic composition can vary. In some cases, the cosmetic composition includes from about 1 to about 40% by weight of one or more fatty compounds. Additionally, in some cases, the cosmetic composition comprises from about 1 to about 30% by weight, about 1 to about 25% by weight, about 1 to about 20% by weight, about 1 to about 15% by weight, about 1 to about 10% by weight, about 2 to about 40% by weight, about 2 to about 30% by weight, about 2 to about 25% by weight, about 2 to about 20% by weight, about 2 to about 15% by weight, about 2 to about 10% by weight, about 5 to about 40% by weight, about 5 to about 30% by weight, about 5 to about 25% by weight, about 5 to about 20% by weight or about 5 to about 15% by weight, relative to the total weight of the cosmetic composition.

Emulsifiers are typically used to incorporate oil and/or fatty compounds into a hydrophilic medium, such as an aqueous medium, to form oil-in-water emulsions. In some cases, however, emulsifiers can be used to incorporate a hydrophilic phase (e.g. an aqueous medium) into an oily or fatty phase to form a water-in-oil emulsion. The constituents classified in the category of emulsifiers overlap with the constituents classified in the category of surfactants, in particular nonionic surfactants. In other words, many compounds that work as emulsifiers also work as surfactants and vice versa.

Cosmetic compositions typically include one or more emulsifiers and/or surfactants, for example, one or more nonionic emulsifiers (and/or nonionic surfactants). Other useful emulsifiers or surfactants include amphoteric, anionic and/or cationic emulsifiers and surfactants.

For O/W emulsions, examples of emulsifiers which may be mentioned include nonionic emulsifiers such as oxyalkylenated (more particularly polyoxyethylene) fatty acid esters of glycerol; oxyalkylenated fatty acid esters of sorbitan; oxyalkylenated (oxyethylenated and/or oxypropylene) fatty acid esters; oxyalkylenated (oxyethylenated and/or oxypropylene) fatty alcohol ethers; sugar esters such as sucrose stearate; and their mixtures. A more comprehensive but non-limiting list of useful nonionic emulsifiers is provided below under the heading "Nonionic Emulsifiers".

In some cases, it is preferable that cosmetic compositions containing natural oils include two or more nonionic emulsifiers. In particular, one or more nonionic emulsifiers having an HLB of 10 or more and one or more nonionic emulsifiers having an HLB of 5 or less. The total amount of these emulsifiers can be such that the final HLB of the hair treatment composition is within +/- 0.5 of the HLB of the natural oil in the cosmetic composition. This typically results in the final HLB of the emulsified natural oil in the hair composition being between about 6 and about 8.

Non-limiting examples of emulsifiers include glyceryl esters and derivatives, alkoxylated carboxylic acids (PEG-30 dipolyhydroxystearate), oxyalkylenated fatty acid esters of glycerol, oxyalkylenated fatty acid esters of sorbitan, oxyalkylenated fatty acid esters , oxyalkylenated fatty alkyl ethers, sugar esters (arachidyl glucoside) and mixtures thereof.

Other non-limiting examples of emulsifiers which may be mentioned include nonionic emulsifiers such as oxyalkylenated (more particularly polyoxyethylene) fatty acid esters of glycerol; oxyalkylenated fatty acid esters of sorbitan; oxyalkylenated (oxyethylenated and/or oxypropylene) fatty acid esters; oxyalkylenated (oxyethylenated and/or oxypropylene) fatty alcohol ethers; sugar esters such as sucrose stearate; and their mixtures.

Preferably, the cosmetic composition includes a nonionic emulsifier chosen from emulsifiers based on polyglyceryl, polyol esters, glycerol ethers, oxyethylenated ethers, oxypropylene ethers, ethylene glycol polymers, sorbitan esters, polysorbate, and mixtures thereof. In certain cases, the nonionic emulsifier(s) are chosen from polyglyceryl-10 stearate, polyglyceryl-3 caprate, polyglyceryl-3 diisostearate, polyglyceryl-3-methylglucose distearate and mixtures thereof. In some cases, the cosmetic composition includes cetearyl glucoside, trideceth-6, PEG-30 dipolyhydroxystearate, and arachidyl glucoside.

A more exhaustive but non-limiting list of nonionic surfactants that can be included in cosmetic compositions is presented below, under the title “Nonionic surfactants”.

The amounts of emulsifiers and/or surfactants which may be included in cosmetic compositions may vary. Nevertheless, in certain cases, the total amount of emulsifiers and/or surfactants is between about 0.05 and about 10% by weight, relative to the total weight of the cosmetic composition. Additionally, in some instances, the total amount of emulsifiers and/or surfactants in the cosmetic compositions may be about 0.05 to about 8% by weight, about 0.05 to about 6% by weight, about 0.05 to about 5 wt%, about 0.1 to about 10 wt%, about 0.1 to about 8 wt%, about 0.1 to about 6 wt%, about 0 1 to about 5% by weight, about 0.1 to about 3% by weight, or about 0.1 to about 2% by weight, relative to the total weight of the cosmetic composition.

Cosmetic compositions typically include one or more water-soluble solvents. Non-limiting examples include glycols, glycerin, C1-C4 alcohols, polyhydric alcohols, and a mixture thereof. A more comprehensive but non-limiting list of useful water soluble solvents is provided below under the heading "Water Soluble Solvents".

The total amount of water-soluble solvents may vary. Nevertheless, the amount of water-soluble solvent is typically between about 1 and about 40% by weight, relative to the total weight of the cosmetic composition. Additionally, in some cases, the total amount of water-soluble solvent may be about 1 to about 35% by weight, about 1 to about 30% by weight, about 1 to about 25% by weight, about 1 to about 20 wt%, about 5 to about 40 wt%, about 5 to about 35 wt%, about 5 to about 30 wt%, about 5 to about 25 wt% , about 5 to about 20% by weight, or about 10 to about 20% by weight, relative to the total weight of the cosmetic composition.

The viscosity of cosmetic compositions can vary, and can be adjusted depending on the shape and desired properties of the composition. Nevertheless, in some cases, the viscosity of the cosmetic composition can be from about 5,000 cP to about 100,000 cP at 25°C. Viscosity can be measured using a Brooksfield DV-1 viscometer fitted with a T-bar spindle, reading at 30 seconds and 10 rpm. In some instances, the viscosity of the cosmetic compositions may be from about 5,000 cP to about 80,000 cP, from about 5,000 cP to about 50,000 cP, from about 5,000 cP to about 25,000 cP, from about 5,000 cP to approximately 10,000 cP, 10,000 cP to approximately 100,000 cP, approximately 25,000,000 cP to approximately 100,000 cP, approximately 50,000 cP to approximately 100,000 cP, approximately 100,000 cP at about 100,000 cP and from about 100,000 cP to about 100,000 cP, 000 cP, about 25,000 cP to about 100,000 cP, about 50,000 to about 100,000 cP, about 75,000 cP to about 100,000 cP, about 10,000 cP to about 90,000 cP, about 25,000 cP to about 75,000 cP, or about 30,000 cP to about 60,000 cP at 25°C.

As already noted, the polymer mixtures of the present case are particularly well suited for use in cosmetic compositions, in particular cosmetic compositions comprising one or more active ingredients, preferably one or more active ingredients for the skin. Accordingly, the cosmetic compositions of the present case typically include one or more active ingredients, in particular one or more active ingredients for the skin. Non-limiting examples of active ingredients for the skin include anti-aging agents, depigmenting agents, anti-wrinkle agents, agents treating oily skin, mattifying agents, antioxidants, vitamins, anti-acne agents, anti-inflammatory agents and electrolytes. In some cases, it is preferred that the skin active ingredient(s) be selected from a C-glycoside derivative (e.g. hydroxypropyl tetrahydropyrantriol), hyaluronic acid or derivative thereof (e.g. sodium hyaluronate) , salicylic acid or a derivative thereof (eg capryloyl salicylic acid), an ester thereof or a salt thereof.

The total amount of skin active ingredients in cosmetic compositions may vary. However, in some cases, the total amount of skin-active ingredients is between about 0.1 and about 20% by weight, based on the total weight of the cosmetic composition. Additionally, in some instances, the total amount of skin active ingredients may be about 0.1 to about 15% by weight, about 0.1 to about 10% by weight, about 0.1 to about 5 % by weight, about 0.2 to about 20% by weight, about 0.2 to about 15% by weight, about 0.2 to about 10% by weight, about 0.2 to about 5% by weight, about 0 .5 to about 20% by weight, about 0.5 to about 15% by weight, about 0.5 to about 10% by weight, about 0.5 to about 5% by weight, about 1 to about 20% by weight , about 1 to about 15% by weight, about 1 to about 10% by weight, about 1 to about 5% by weight, about 2 to about 10% by weight, about 2 to about 8% by weight, or about 2 to about 6% by weight, based on the total weight of the cosmetic composition.

The present disclosure relates to methods of stabilizing and/or modifying the viscosity of a composition, for example, a cosmetic composition such as a cosmetic composition for the treatment of the skin. The method of stabilizing and/or modifying the viscosity of a composition, including a cosmetic composition such as a cosmetic composition for the treatment of the skin, includes the incorporation of the mixture of rheology modifier and stabilizer polymers such as described herein in a composition, for example, a cosmetic composition such as a cosmetic composition for the treatment of the skin. The mixture of rheology modifier and stabilizer polymers is used in an amount sufficient to stabilize and/or modify the viscosity of the composition. For example, the rheology modifier and stabilizer polymer blend may be added in amounts ranging from about 0.1 to about 10% by weight, preferably from about 0.5 to about 5% by weight, more preferably from about 0.5 to about 2% by weight of the polymer blend, based on the total weight of the composition. The methods relate to the stabilization of one or more active ingredients in the composition. The one or more active ingredients may be included in various amounts depending on the active ingredient to be stabilized and the desired amount of active ingredient to be included in the composition. Nevertheless, the total amount of active ingredients in cosmetic compositions may vary. However, in some instances, the total amount of active ingredients, such as skin active ingredients, may be from about 0.1 to about 20% by weight, preferably from about 0.5 to about 15% by weight, more preferably about 1 to about 15% by weight, even more preferably about 1 to about 10% by weight, based on the total weight of the cosmetic composition.

Finally, the present disclosure relates to the treatment of the skin using the cosmetic compositions described in this document. The methods include applying the cosmetic composition to skin, for example, facial skin. In some cases, the cosmetic composition may remain on the face (leave-in product). In other cases, however, the cosmetic composition can be rinsed off the face after being applied to the skin for a certain time (rinse-off product).

Fatty compounds

Fatty compounds include, for example, oils. Non-limiting examples of oils include silicone oils, fluoro oils, hydrocarbon based oils, etc. In some cases, the cosmetic composition includes oils that are herbal or vegetable oils. The amount of oil and/or herbal or vegetable oil present in the cosmetic composition can range from about 0.1 to about 10% by weight, about 0.1 to about 8% by weight, about 0 1 to about 7% by weight, about 0.1 to about 6% by weight, about 0.1 to about 5% by weight; about 0.5 to about 10% by weight, about 0.5 to about 8% by weight, about 0.5 to about 7% by weight, about 0.5 to about 6% by weight, about 0.5 to about 5% by weight; about 1 to about 10 wt%, about 1 to about 8 wt%, about 1 to about 7 wt%, about 1 to about 6 wt%, about 1 to about 5 wt%; about 2 to about 10 wt%, about 2 to about 8 wt%, about 2 to about 7 wt%, about 2 to about 6 wt%, about 2 to about 5 wt%; about 3 to about 10 wt%, about 3 to about 8 wt%, about 3 to about 7 wt%, about 3 to about 6 wt%, about 3 to about 5 wt%; about 4 to about 10 wt%, about 4 to about 8 wt%, or about 4 to about 7 wt%, inclusive of all intermediate ranges and subranges, based on the total weight of the cosmetic composition.

Additionally, and/or alternatively, the cosmetic composition may exclude synthetic oils. In some cases, the cosmetic composition may exclude oils other than herbal or vegetable oils. For example, the amount of synthetic oils and/or oils other than herbal and vegetable oils may be about 5% by weight or less, about 4% by weight or less, about 3% by weight or less, about 2% by weight or less, about 1% by weight or less, about 0.5% by weight or less, about 0.1% or less, or about 0.05% or less based on the total weight of the cosmetic composition. In at least one embodiment, the cosmetic composition is free or substantially free of synthetic oils and/or oils other than herbal and vegetable oils. In at least one embodiment, the cosmetic composition is free or substantially free of silicone oils. In some cases, the amount of silicone oils may be about 5% by weight or less, about 4% by weight or less, about 3% by weight or less, about 2% by weight or less, about 1% by weight or less, approximately 0.5% by weight or less, approximately 0.1% or less, or approximately 0.05% or less relative to the total weight of the cosmetic composition.

The term "oil" designates any fatty substance which is in liquid form at room temperature (20-25°C) and at atmospheric pressure (760 mmHg). Often, at least one of the oils in the cosmetic composition is part of an oily phase. An "oily phase" is a phase comprising at least one oil which may include additional fat-soluble and lipophilic ingredients and fatty substances. The oil suitable for use herein can be volatile or non-volatile. The term “volatile oil” relates to an oil which is capable of evaporating on contact with the skin or a keratinous fiber in less than one hour, at room temperature and at atmospheric pressure. The volatile oil(s) are liquid at ambient temperature and have a non-zero vapor pressure, at ambient temperature and at atmospheric pressure, ranging in particular from 0.13 Pa to 40,000 Pa (10 ⁻³ to 300 mmHg). The term "non-volatile oil" relates to an oil which remains on the skin or the keratinous fibre, at ambient temperature and atmospheric pressure, for at least several hours and which in particular has a vapor pressure of less than 10 ^-3 mmHg (0. 13 Pa).

The term “silicone oil” relates to an oil comprising at least one silicon atom, and in particular at least one Si—O group. The term “fluoro oil” denotes an oil comprising at least one fluorine atom. The term "hydrocarbon oil" refers to an oil comprising mainly hydrogen and carbon atoms. The hydrocarbon-based oil can be an animal hydrocarbon-based oil, a vegetable hydrocarbon-based oil, a mineral hydrocarbon-based oil or a synthetic hydrocarbon-based oil. Further, a suitable oil may be a mineral hydrocarbon-based oil, a vegetable hydrocarbon-based oil or a synthetic hydrocarbon-based oil.

Silicone oils

The cosmetic compositions described herein may comprise one or more silicone oils. Non-limiting examples of silicone oils include dimethicone, cyclomethicone, polysilicone-11, phenyl trimethicone, trimethylsilylamodimethicone and stearoxytrimethylsilane. In some cases, the cosmetic composition includes dimethicone, and optionally additional oils, including additional silicone oils. Typically, the one or more silicone oils are a non-volatile silicone oil. In some embodiments, the silicone oil is polydimethylsiloxanes (PDMS), polydimethylsiloxanes comprising alkyl or alkoxy groups which are pendent and/or at the end of the silicone chain, which groups each contain from 2 to 24 carbon atoms, or phenylsilicones, such as phenyltrimethicones, phenyldimethicones, phenyl(trimethylsiloxy)diphenylsiloxanes, diphenyldimethicones, diphenyl(methyldiphenyl)trisiloxanes or (2-phenylethyl)trimethylsiloxysilicates.

Other examples of silicone oils which may be mentioned include volatile linear or cyclic silicone oils, in particular those having a viscosity of 8 centistokes (8x10 ⁶ m ² /s) and containing in particular from 2 to 7 silicon atoms, these silicones optionally comprising alkyl or alkoxy groups containing from 1 to 10 carbon atoms. As volatile silicone oils that can be used in the invention, mention may in particular be made of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, and mixtures thereof.

Hu fluoro islands

The cosmetic compositions described herein may include one or more fluoro oils. For example, the fluoro oil(s) can be selected from the group consisting of perfluoromethylcyclopentane, perfluoro-1,3-dimethylcyclohexane, dodecafluoropentane, tetradecafluorohexane, bromoperfluorooctyl, nonafluoromethoxybutane, nonafluoroethoxyisobutane and 4-trifluoromethylperfluoromorpholine. Fluorovolatile oils, such as nonafluoromethoxybutane, decafluoropentane, tetradecafluorohexane, dodecafluoropentane, can also be used.

Oils hydrocarbon based

The cosmetic compositions described herein may comprise one or more hydrocarbon-based oils. For example, the hydrocarbon-based oil can be saturated hydrocarbon, unsaturated hydrocarbon, lipids, triglycerides, natural oil and/or synthetic oil. In some embodiments, the compositions include a synthetic oil selected from the group consisting of hydrogenated polyisobutene and hydrogenated polydecene.

The hydrocarbon-based oil can be a non-volatile hydrocarbon-based oil, such as:

(i) hydrocarbon-based oils of vegetable origin, such as triesters of glycerides, which are generally triesters of fatty acids and glycerol, whose fatty acids can have chain lengths varying from C4 to C24 , these chains possibly being saturated or unsaturated and linear or branched; these oils are in particular wheat germ oil, sunflower oil, grape seed oil, sesame oil, corn oil, apricot oil, castor oil, shea oil, avocado oil, olive, soybean oil, sweet almond oil, palm oil, rapeseed oil, cottonseed oil, hazelnut oil, macadamia oil, jojoba oil, alfalfa oil, poppy seed oil, pumpkin seed oil, Marrow Oil, Blackcurrant Oil, Evening Primrose Oil, Millet Oil, Barley Oil, Quinoa Oil, Rye Oil, Safflower Oil, Bancoula Oil, Passionflower Oil, and Rosehip Oil.

(ii) synthetic ethers containing 10 to 40 carbon atoms;

(iii) linear or branched hydrocarbons of mineral or synthetic origin, such as petroleum jelly, polydecenes, hydrogenated polyisobutene such as Parleam, and squalane 40;

(iv) synthetic esters, for example oils of formula RCOOR' in which R represents a linear or branched fatty acid residue containing from 1 to 40 carbon atoms and R' represents a hydrocarbon chain which is in particular branched, containing 1 to 40 carbon atoms provided that R+R' is ≥ 10, for example Purcellin's oil (cetearyl octanoate), isopropyl myristate, isopropyl palmitate, C12-C15 alkyl benzoate, such than the product marketed under the name Finsolv TN® or Witconol TN® by Witco or Tegosoft TN® by Evonik Goldschmidt, 2-ethylphenyl benzoate, such as the product marketed under the name X-Tend 226 by ISP, isopropyl lanolate, hexyl laurate, diisopropyl adipate, isononyl isonanoate, oleyl erucate, 2-ethylhexyl palmitate, isostearyl isostearate, diisopropyl sebacate, such as the product sold under the name "Dub Dis" by Stearinerie Dubois, octanoates, decanoates or ricinoleates of alcohols or polyalcohols , such as propylene glycol dioctanoate; hydroxylated esters, such as isostearyl lactate or diisostearyl malate; and pentaerythritol esters; citrates or tartrates, such as di(linear C12-C13 alkyl) tartrates, such as those sold under the name Cosmacol ETI® by Enichem Augusta Industriale, and also di(linear C14-C15 alkyl) tartrates, such as those sold under the name Cosmacol ETL® by the same company; or acetates;

(v) fatty alcohols which are liquid at room temperature, containing a branched and/or unsaturated carbon chain comprising from 12 to 26 carbon atoms, for example octyldodecanol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, 2-butyloctanol or 2-undecylpentadecanol ;

(vi) higher fatty acids, such as oleic acid, linoleic acid or linolenic acid;

(vii) carbonates, such as dicaprylyl carbonate, such as the product sold under the name Cetiol CC® by Cognis;

(viii) fatty amides, such as isopropyl N-lauroyl sarcosinate, such as the product sold under the trade name Eldew SL 205® from Ajinomoto; And

(ix) essential oils selected from the group consisting of sunflower oil, sesame oil, peppermint oil, macadamia nut oil, tea tree oil, evening primrose oil, sage oil, rosemary oil , coriander oil, thyme oil, chili berry oil, rose oil, anise oil, balsam oil, bergamot oil, rosewood oil, cedar oil, chamomile oil, sage oil, clary sage oil, clove oil, cypress oil, eucalyptus oil, fennel oil, sea fennel oil, frankincense oil, geranium oil, ginger oil, grapefruit oil, jasmine oil, juniper, lavender oil, lemon oil, lemongrass oil, lime oil, tangerine oil, marjoram oil, myrrh oil, neroli oil, orange oil, patchouli oil, pepper oil, black pepper, petitgrain oil, pine oil, rose otto oil, rosemary oil, sandalwood oil, spearmint, nard oil, vetiver oil, wintergreen oil and ylang ylang.

In some cases, the non-volatile hydrocarbon-based oils are glyceride triesters and in particular caprylic/capric acid triglycerides, synthetic esters and in particular isonyl isononanoate, oleyl erucate, alkyl benzoate C12-C15, 2-ethylphenyl benzoate and fatty alcohols, such as octyldodecanol.

As volatile hydrocarbon-based oils, mention is made of hydrocarbon-based oils containing from 8 to 16 carbon atoms and in particular branched C8-C16 alkanes, such as C8-C16 isoalkanes of oil (also called isoparaffins), such as isododecane (also called 2,2,4,4,6-pentamethylheptane), isodecane or isohexadecane, oils sold under the Isopar or Permethyl brands, branched C8-C16 esters, neopentanoate of isohexyl.

Preferably, the oil is chosen from plant-based or vegetable oils, such as coconut oil, soybean oil, canola oil, rapeseed oil, corn oil, cottonseed oil, olive oil, palm oil, peanut oil, safflower oil, sesame oil, sunflower oil, linseed oil, palm kernel oil, tung oil, jatropha oil, mustard oil, camelina oil, watercress oil, castor oil, wheat germ oil, apricot kernel oil, pistachio oil, poppy seed oil, pine oil, avocado oil, hazelnut oil, grapeseed oil, rapeseed oil, cade oil, peach kernel oil, coffee bean oil, jojoba oil, and a mixture thereof.

Non-limiting examples of fatty compounds include:

i. hydrocarbon oils of animal origin such as perhydrosqualene;

ii. vegetable hydrocarbon oils, such as liquid triglycerides of fatty acids, for example sunflower oil, corn oil, soybean oil, pumpkin oil, grapeseed oil, sesame oil, hazelnut oil, apricot, macadamia oil, castor oil, avocado oil, caprylic/capric acid triglycerides;

iii. oils of formula R ₉ COOR ₁₀ in which R ₉ represents a higher fatty acid residue containing from 7 to 19 carbon atoms and R ₁₀ represents a branched hydrocarbon chain containing from 3 to 20 carbon atoms, such as Purcellin oil;

iv. linear or branched hydrocarbons of mineral or synthetic origin, such as non-volatile liquid paraffins and their derivatives, petroleum jelly (vaseline), polydecenes, hydrogenated polyisobutene such as paream;

v. synthetic esters and ethers such as isopropyl myristate, octanoates, decanoates or ricinoleates of alcohols or polyalcohols;

vi. fatty alcohols such as octyldodecanol or oleyl alcohol;

vii. partially hydrocarbon and/or silicone fluoro oils;

viii. silicone oils such as polydimethylsiloxanes (dimethicone) which are linear, non-volatile, liquid or pasty at room temperature, phenyldimethicones, phenyltrimethicones and polymethylphenylsiloxanes; and their mixtures.

In certain cases, the fatty compound(s) can be chosen from polyolefins (vaseline), waxes, squalane, squalene, hydrogenated polyisobutene, hydrogenated polydecene, polybutene, mineral oil, pentahydrosqualene, dimethicone, and a mixture thereof.

Other fatty compounds worth mentioning include fatty alcohols, fatty esters, fatty alcohol derivatives, fatty acid derivatives, such as those discussed below.

fatty alcohols

The fatty compound or compounds can be glycerolated and/or oxyalkylenated, include from 8 to 30 carbon atoms, and/or be saturated or unsaturated. Fatty alcohols useful herein include those having about 8 to about 30 carbon atoms, about 12 to about 22 carbon atoms, and about 14 to about 22 carbon atoms. These fatty alcohols can be straight or branched chain alcohols and can be saturated or unsaturated. Non-limiting examples of fatty alcohols include decyl alcohol, undecyl alcohol, dodecyl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, isocetyl alcohol, behenyl alcohol, e linalool, oleyl alcohol, cis4-t-butylcyclohexanol, myricyl alcohol and a mixture of these. In some instances, the fatty alcohols include at least one of the following or may be selected from myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, isotridecyl alcohol and a mixture thereof.

Saturated liquid fatty alcohols can be branched and optionally contain in their structure at least one aromatic or non-aromatic ring. In some cases, however, fatty alcohols are acyclic. Non-limiting examples of liquid saturated fatty alcohols include octyldodecanol, isostearyl alcohol and 2-hexyldecanol.

Unsaturated liquid fatty alcohols can include in their structure at least one double or triple bond. For example, fatty alcohols can include multiple double bonds (such as 2 or 3 double bonds), which can be conjugated or unconjugated. Unsaturated fatty alcohols can be linear or branched and can be acyclic or include in their structure at least one aromatic or non-aromatic ring. The liquid unsaturated fatty alcohols can include or be selected from oleyl alcohol, linoleyl alcohol, linolenic alcohol and undecylenic alcohol.

Non-limiting examples of solid fatty alcohols include linear or branched alcohols, saturated or unsaturated, containing from 8 to 30 carbon atoms, for example, myristyl alcohol, cetyl alcohol, stearyl alcohol and their mixture, cetyl stearyl alcohol.

Fatty esters

The fatty compounds of the skin firming composition can be liquid or solid fatty esters at 25°C, 1 atm. Fatty esters can include esters of a C6-C32 fatty acid and/or a C6-C32 fatty alcohol. For example, the fatty compounds can include or be chosen from fatty acid monoesters and diesters, polyol esters, polyglycerol esters, polyglycerol polyricinoleate, polyglycerol poly-12-hydroxystearate, polyglycerol dimer isostearate, ethyl hexanoate , polyglycerol esters, and a mixture thereof. These esters may be esters of C1-C26 aliphatic mono or polyacids, saturated or unsaturated, linear or branched, and of C1-C25 aliphatic mono or polyalcohols, saturated or unsaturated, linear or branched, the total number of atoms of carbon in the esters being greater than or equal to 10. In one case, the fatty compounds comprise one or more fatty acid monoesters. For monoalcohol esters, at least one of the alcohol or acid from which the esters result is branched. Among the monoesters of monoacids and monoalcohols, mention may be made of ethyl palmitate, isopropyl palmitate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononanoate isononyl, isodecyl neopentanoate and isostearyl neopentanoate.

In some cases, the fatty esters are cetyl esters, such as esters of saturated fatty acids and fatty alcohols. For example, the fatty esters can include or be selected from cetyl palmitate, cetyl stearate, myristyl myristate, myristyl stearate, cetyl myristate, stearyl stearate, cetaryl ethylhexanoate, and mixtures thereof. In one case, the fatty esters can be one or more of them or be chosen from isopropyl isostearate, n-propyl myristate, isopropyl myristate, hexyl laurate, hexadecyl isostearate, hexydecyl laurate , hexyldecyl octanoate, n-propyl palmitate, isopropyl palmitate and mixtures thereof. In another example, fatty esters include or may be selected from diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, monoisostearic acid N-alkylglycol, isocetyl isostearate, trimethylolpropane triisostearate, di Ethylene Glycol -2-Ethylhexanoate, Cetyl 2-Ethylhexanoate, Trimethylolpropane Tri-2-Ethylhexanoate, Pentaerythritol Tetra-2-Ethylhexanoate, Cetyl Octanoate, Octyldodecyl Gum Ester, Oleyl Oleate, Octyldodecyl Oleate , decyl oleate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, isocetyl stearate, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, palmitate d isopropyl, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, cholesteryl 12-hydroxystearate, dipentaerythritol fatty acid ester, isopropyl myristate, octyldodecyl myristate, myristate 2 -hexyldecyl, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, diisostearyl malate, dicaprylyl carbonate, cetearyl ethylhexanoate, and mixtures thereof. In yet another instance, the skin firming composition includes one or more or may have fatty compounds selected from cetearyl alcohol, cetearyl ethylhexanoate, isopropyl myristate, and mixtures thereof.

Non-limiting examples of solid fatty acid esters and/or fatty acid esters which may be mentioned include solid esters obtained from C9-C26 fatty acids and C9-C25 fatty alcohols. . Among these esters, mention may be made of octyldodecyl behenate, isocetyl behenate, cetyl lactate, stearyl octanoate, octyl octanoate, cetyl octanoate, decyl oleate, myristyl stearate, octyl palmitate, octyl pelargonate, octyl stearate, alkyl myristates such as cetyl myristate, myristyl myristate or stearyl myristate, and hexyl stearate.

Non-limiting examples of liquid fatty acid include triglyceride oils of vegetable or synthetic origin, such as liquid fatty acid triglycerides containing 6 to 30 carbon atoms, for example triglycerides of heptanoic or octanoic acid, or alternatively , eg, sunflower oil, corn oil, soybean oil, pumpkin oil, grapeseed oil, sesame oil, hazelnut oil, apricot oil, macadamia oil, arara oil, Castor Oil, Avocado Oil, Olive Oil, Rapeseed Oil, Coconut Oil, Wheat Germ Oil, Sweet Almond Oil, Apricot Oil, Safflower Oil, Bancoula Oil, Coconut Oil , camelina oil, tamanu oil, babassu oil and pracaxi oil, jojoba oil, shea butter oil, and mixtures thereof. In one case, the fatty compound or compounds include at least one of the following elements or are chosen from fatty acid triglycerides, oils, mineral oils, alkanes, fatty alcohols, fatty acids, fatty alcohol derivatives, alkoxylated fatty acids, polyethylene glycol esters of fatty acids, propylene glycol esters of fatty acids, butylene glycol esters of fatty acids, neopentyl glycol esters of fatty acids, polyglycerol/glycerol esters of fatty acids, glycol diesters, diesters of ethylene glycol and fatty acids, esters of fatty acids and fatty alcohols, esters of short-chain alcohols and fatty acids, esters of fatty alcohols, hydroxy-substituted fatty acids, waxes and mixtures thereof. In another instance, the fatty compounds of the skin firming composition include one or more fatty acid triglycerides, such as caprylic/capric triglyceride.

Fatty alcohol derivatives

The skin firming compositions may, in some cases, include fatty alcohol derivatives such as fatty alcohol alkyl ethers, fatty alcohol alkoxylates, fatty alcohol alkoxylate alkyl ethers, fatty alcohol esters and a mixture of these. Non-limiting examples of fatty alcohol derivatives include materials such as methyl stearyl ether, 2-ethylhexyl dodecyl ether, stearyl acetate, cetyl propionate, the ceteth range of compounds such as ceteth-1 to ceteth-45 , which are ethylene glycol ethers of cetyl alcohol, where the numerical designation indicates the number of ethylene glycol moieties present; the range of steareth compounds such as steareth-1 to 10, which are ethylene glycol ethers of steareth alcohol, where the numerical designation indicates the number of ethylene glycol moieties present; ceteareth-1 to ceteareth-10, which are the ethylene glycol ethers of ceteareth alcohol, i.e. a mixture of fatty alcohols containing mainly cetyl alcohol and stearyl alcohol, in which the numerical designation indicates the number of fractions of ethylene glycol present; the C1-C30 alkyl ethers of the ceteth, steareth and ceteareth compounds described above; polyoxyethylenic ethers of branched alcohols such as octyldodecyl alcohol, dodecylpentadecyl alcohol, hexyldecyl alcohol and isostearyl alcohol; polyoxyethylenic ethers of behenyl alcohol; PPG ethers such as PPG-9 stearyl ether, PPG-11 stearyl ether, PPG-8 and PPG-10 cetyl ether; and their mixtures. The liquid fatty ethers can be chosen from liquid dialkyl ethers such as dicaprylic ether. The non-liquid fatty ethers can also be chosen from dialkyl ethers and in particular diketyl ether and distearyl ether, alone or as a mixture.

It is also possible to use the esters of C ₄ -C ₂₂ dicarboxylic or tricarboxylic acids and of C ₁ -C ₂₂ alcohols as well as the esters of monocarboxylic, dicarboxylic or tricarboxylic acids and of dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy alcohols C ₄ -C ₂₆ non-sugar. Mention may in particular be made of diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-n-propyl adipate; triisopropyl citrate; glyceryl trilactate; glyceryl trioctanoate; neopentylglycol diheptanoate; diethylene glycol diisononanoate.

Fatty acid derivatives

The skin firming compositions may, in some instances, include fatty acid derivatives. Fatty acid derivatives are defined here to include fatty acid esters of fatty alcohols as defined above, fatty acid esters of fatty alcohol derivatives as mentioned above when these derivatives of fatty alcohols having an esterifiable hydroxyl group, fatty acid esters of alcohols other than the fatty alcohols and fatty alcohol derivatives described above, hydroxy-substituted fatty acids, and a mixture thereof. Non-limiting examples of fatty acid derivatives include ricinoleic acid, glycerol monostearate, 12-hydroxystearic acid, ethyl stearate, cetyl stearate, cetyl palmitate, polyoxyethylene cetyl ether stearate, stearyl ether stearate polyoxyethylene, polyoxyethylene lauryl ether stearate, ethylene glycol monostearate, polyoxyethylene monostearate, polyoxyethylene distearate, propylene glycol monostearate, propylene glycol distearate, trimethylolpropane distearate, sorbitan stearate, polyglyceryl stearate, dimethyl sebacate, PEG-15 cocoate , PPG-15 stearate, glyceryl monostearate, glyceryl distearate, glyceryl tristearate, PEG-8 laurate, PPG-2 isostearate, PPG-9 laurate, and a mixture thereof.

Nonionic surfactant(s)

The skin firming composition can optionally include one or more nonionic surfactants. Although the skin firming composition is typically an emulsion when it contains one or more nonionic surfactants, the skin firming composition can also be anhydrous when it contains such nonionic surfactants.

The nonionic surfactant(s) may include one or more of the following: peg-30 dipolyhydroxystearate, polyglyceryl-4 diisostearate polyhydroxystearate / polyglyceryl-4 sebacate, polyglyceryl-4 isostearate, polyglyceryl-2 dipolyhydroxystearate, peg dimethicone (and) dimethicone / ppg-18/18, lauryl peg-9 polydimethylsiloxyethyl dimethicone, and a combination thereof. The nonionic surfactant can be, for example, chosen from alcohols, alpha-diols, alkylphenols and fatty acid esters, these compounds being ethoxylated, propoxylated or glycerolated and comprising at least one fatty chain comprising, for example, from 8 to 18 carbon atoms. The number of ethylene oxide or propylene oxide groups of the preceding compounds can vary from 2 to 50, and the number of glycerol groups can vary from 1 to 30. Mention may be made of copolymers of ethylene oxide and/or of propylene oxide; condensates of ethylene oxide and/or propylene oxide with fatty alcohols; polyethoxylated fatty amides comprising, for example, from 2 to 30 mol of ethylene oxide; polyglycerolated fatty amides comprising, for example, from 1.5 to 5 glycerol groups, such as from 1.5 to 4; sorbitan ethoxylated fatty acid esters comprising from 2 to 30 mol of ethylene oxide; ethoxylated oils of plant origin; sucrose fatty acid esters; polyethylene glycol fatty acid esters; mono or diesters of polyethoxylated fatty acids of glycerol, C6-C24 alkylpolyglycosides; C6-C24 N-alkylglucamine derivatives, amine oxides such as C10-C14 alkylamine oxides or C10-C14 N-(acylaminopropylmorpholine) oxides; and their mixtures. Maltose derivatives may also be mentioned.

The nonionic surfactants can be chosen from polyoxyalkylenated or polyglycerolated nonionic surfactants. The oxyalkylene units are more preferably oxyethylene or oxypropylene units, or a combination thereof, and are preferably oxyethylene units.

In some cases, the nonionic surfactant can be chosen from polyol esters with saturated or unsaturated chain fatty acids containing for example from 8 to 24 carbon atoms, preferably from 12 to 22 carbon atoms, and their alkoxylated derivatives , preferably with an alkylene oxide number of 10 to 200, and more preferably 10 to 100, such as glyceryl esters of one or more C8-C24, preferably C12- C22, and their alkoxylated derivatives, preferably with an alkylene oxide number of 10 to 200, and more preferably 10 to 100; polyethylene glycol esters of one or more C8-C24, preferably C12-C22, fatty acids and their alkoxylated derivatives, preferably with an alkylene oxide number of 10 to 200, and more preferably of 10 to 100; sorbitol esters of one or more C8-C24, preferably C12-C22, fatty acids and their alkoxylated derivatives, preferably with an alkylene oxide number of 10 to 200, and more preferably of 10 to 100; sugar esters (sucrose, glucose, alkylglycose) of one or more C8-C24 fatty acids, preferably C12-C22, and their alkoxylated derivatives, preferably with an alkylene oxide number of 10 to 200 , and more preferably from 10 to 100; fatty alcohol ethers; sugar ethers of one or more C8-C24 fatty alcohols, preferably C12-C22; and their mixtures.

Examples of ethoxylated fatty esters which may be mentioned include adducts of ethylene oxide with esters of lauric acid, palmitic acid, stearic acid or behenic acid, and mixtures thereof, especially those containing from 9 to 100 oxyethylene groups. - such as PEG-9 to PEG-50 laurate (under the CTFA names: PEG-9 laurate to PEG-50 laurate); PEG-9 to PEG-50 palmitate (under the CTFA names: PEG-9 palmitate to PEG-50 palmitate); PEG-9 to PEG-50 stearate (under the CTFA names: PEG-9 stearate to PEG-50 stearate); palmitostearate from PEG-9 to PEG-50; PEG-9 to PEG-50 behenate (under the CTFA names: PEG-9 behenate to PEG-50 behenate); polyethylene glycol monostearate 100 EO (under the CTFA name: PEG-100 stearate); and their mixtures. As fatty acid glyceryl esters, mention may in particular be made of glyceryl stearate (glyceryl mono-, di- and/or tristearate) (CTFA name: glyceryl stearate) or glyceryl ricinoleate and mixtures thereof. As glyceryl esters of C8-C24 alkoxylated fatty acids, mention may be made, for example, of polyethoxylated glyceryl stearate (mono-, di- and/or glyceryl tristearate) such as PEG-20 glyceryl stearate. Mixtures of these surfactants, such as for example the product containing glyceryl stearate and PEG-100 stearate, marketed under the name ARLACEL 165 by Uniqema, and the product containing glyceryl stearate (glyceryl mono- and distearate ) and potassium stearate marketed under the name TEG1N by Goldschmidt (CTFA name: glyceryl stearate SE), can also be used.

Water Soluble Solvents

The term "water-soluble solvent" is interchangeable with the term "water-miscible solvent" and refers to a compound which is liquid at 25°C and atmospheric pressure (760 mmHg), and which has a solubility of at least 50% in water under these conditions. In some cases, the water-soluble solvent has a solubility of at least 60%, 70%, 80%, or 90%. Non-limiting examples of water-soluble solvents include, for example, glycerin, alcohols (eg, C1-30, C1-15, C1-10, or C1-4 alcohols), organic solvents, polyols (polyhydric alcohols), glycols (eg butylene glycol, caprylyl glycol, etc.) and a mixture thereof.

In some cases, the water-soluble solvent is a monoalcohol. Non-limiting examples of monoalcohols include ethanol, propanol, butanol, pentanol, hexanol, isopropyl alcohol, cyclohexanol, isobutyl alcohol, 2-methyl-2-butanol (2-methylbutan-2-ol), and a mixture thereof. this. In some instances, the monoalcohols include or are selected from ethanol, propanol, butanol, pentanol, an isomer thereof, or a combination thereof. In other cases, the monoalcohol(s) include or consist of ethanol.

As examples of organic solvents, non-limiting mention can be made of monoalcohols and polyols such as ethyl alcohol, isopropyl alcohol, propyl alcohol, benzyl alcohol and phenylethyl alcohol, or glycols or glycol ethers such as, for example, ethers monomethyl, monoethyl and monobutyl of ethylene glycol, propylene glycol or their ethers such as, for example, monomethyl ether of propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol as well as alkyl ethers of diethylene glycol, for example monoethyl ether or monobutyl ether of diethylene glycol. Water soluble solvents can be organic solvents which can be volatile or non-volatile compounds.

Other non-limiting examples of water-soluble solvents include alkanediols such as glycerin, 1,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, dipropylene glycol, 2-butene-1,4-diol, 2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol, (caprylyl glycol), 1,2-hexanediol, 1,2-pentanediol, and 4-methyl-1,2-pentanediol; alkyl alcohols having 1 to 4 carbon atoms such as ethanol, methanol, butanol, propanol and isopropanol; glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, ethylene glycol mono-iso-propyl ether, diethylene glycol mono-iso-propyl ether, ethylene glycol mono-n-butyl ether, ethylene mono-t-butyl ether glycol, diethylene glycol mono-t-butyl ether, 1-methyl-1-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-t-butyl ether, propylene glycol mono-n-propyl ether, propylene glycol mono- propylene glycol isopropyl, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol mono-n-propyl ether and dipropylene glycol mono-isopropyl ether; 2-pyrrolidone, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, formamide, acetamide, dimethylsulfoxide, sorbit, sorbitan, acetin, diacetin, triacetin, sulfone and mixtures thereof.

Polyhydric alcohols are useful. The term "polyol" should be understood as meaning, within the meaning of the present disclosure, an organic molecule comprising at least two free hydroxyl groups. The polyols of the cosmetic composition can be glycols or compounds comprising numerous hydroxyl groups. In some instances, the polyol(s) are selected from the group consisting of C2-C32 polyols. The polyol(s) may be liquid at ambient temperature (25° C.). The polyol(s) can have 2 to 32 carbon atoms, 3 to 16 carbon atoms, or 3 to 12 carbon atoms.

Non-limiting examples of polyols which may optionally be included in the cosmetic composition include and/or may be selected from alkanediols such as glycerine, 1,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, dipropylene glycol, 2-butene-1,4-diol, 2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol , caprylyl glycol, 1,2-hexanediol, 1,2-pentanediol and 4-methyl-1,2-pentanediol; glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, ethylene glycol mono-iso-propyl ether, diethylene glycol mono-iso-propyl ether, ethylene glycol mono-n-butyl ether, ethylene mono-t-butyl ether glycol, diethylene glycol mono-t-butyl ether, 1-methyl-1-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-t-butyl ether, propylene glycol mono-n-propyl ether, propylene glycol mono- propylene glycol isopropyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol mono-n-propyl ether, dipropylene glycol mono-isopropyl ether, sorbitol, sorbitan, triac etine, and a mixture thereof. The polyol(s) may optionally be glycols or glycol ethers such as, for example, monomethyl, monoethyl and monobutyl ethers of ethylene glycol, propylene glycol or their ethers such as, for example, monomethyl ether of propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol as well as alkyl ethers of diethylene glycol, for example, monoethyl ether or monobutyl ether of diethylene glycol.

In some cases the polyol includes glycerin, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, 1,3-butanediol, 2,3-butanediol, 1, 4-butanediol, 3-methyl-1 ,3-butanediol, 1,5-pentanediol, tetraethylene glycol, 1,6-hexanediol, 2-methyl-2,4-pentanediol, polyethylene glycol, 1,2,4-butanetriol, 1,2,6-hexanetriol, and a mixture of these. Polyol compounds can also be used. Non-limiting examples include aliphatic diols, such as 2-ethyl-2-methyl-1,3-propanediol, 3,3-dimethyl-1,2-butanediol, 2,2-diethyl-1,3-propanediol, 2 -methyl-2-propyl-1,3-propanediol, 2,4-dimethyl-2,4-pentanediol, 2,5-dimethyl-2,5-hexanediol, 5-hexene-1,2-diol and 2-ethyl -1,3-hexanediol, and a mixture thereof.

In some cases, the cosmetic composition can improve the penetration of skin-active agents into adult human skin. For example, the cosmetic compositions can effect penetration of the skin-active agent into the epidermis and dermis of the skin. In certain cases, the cosmetic composition can obtain approximately 2 μg/cm ² or more, 2.1 μg/cm ² or more, 2.2 μg/cm ² or more, 2.3 μg/cm ² or more, 2, 4 µg/cm ² or more, 2.5 µg/cm ² or more, 2.6 µg/cm ² or more, 2.7 µg/cm ² or more, 2.8 µg/cm ² or more, 2, 9 µg/cm ² or more, 3 µg/cm ² or more of skin active agent in epidermis and dermis of human skin. In certain embodiments, the cosmetic compositions achieve the improved penetration of the skin-active agents without using penetration enhancers.

Certain therapeutic or cosmetic compositions achieve epidermal penetration by using a vector or vehicle which amplifies the penetration of the skin. These carriers or vehicles (which are compounds or mixtures of compounds) are often described as "penetration enhancers" or "skin enhancers". Typical penetration enhancers, which may optionally be excluded from the cosmetic composition, include sulfoxides (such as dimethyl sulfoxide, DMSO), azones (eg, laurocapram), pyrrolidones (eg, 2-pyrrolidone, 2P), alcohols and alkanols (ethanol or decanol), surfactants (also common in dosage forms) and terpenes. Some penetrating enhancers are able to insert between the hydrophobic tails of the bilayer, thereby disrupting their compactness, increasing their fluidity and, subsequently, leading to easier diffusion of lipid-like penetrants. The inventors have surprisingly found that certain cosmetic compositions according to the disclosure allow better penetration of skin active agents into adult human skin without requiring the use of certain penetration enhancers. However, in some cases it may be desirable to include penetration enhancers, such as those discussed here.

In some cases, the cosmetic composition contains 5% by weight or less, 4% by weight or less, 3% by weight or less, 2% by weight or less, or 1% by weight or less of any of the enhancers previous penetrations. In at least one instance, the cosmetic composition is free or substantially free of any of the foregoing penetration enhancers. Additionally or alternatively, the cosmetic composition may contain about 5% by weight or less, 4% by weight or less, 3% by weight or less, 2% by weight or less, or 1% by weight or less of an amount total of penetration amplifiers. For example, the cosmetic composition may be free or substantially free of penetration enhancers.

Cosmetic compositions are generally formulated in the form of an emulsion. Typically, cosmetic compositions are formulated to be oil-in-water emulsions, the fatty phase being emulsified in the hydrophilic phase. However, in some cases, cosmetic compositions can be formulated to have a hydrophilic phase (eg, alcohols, glycols, polyols, etc.) emulsified in the fatty phase. The cosmetic composition can be formulated, in some cases, in the form of lotions, serums, creams, sprays or any other suitable product form.

Further, the present disclosure relates to methods of treating the skin comprising applying the cosmetic composition of the present disclosure to the skin. The cosmetic compositions are further useful in methods of treating and/or repairing skin damage due to photoaging, and diminishing the appearance of wrinkles, dark spots, and uneven skin texture. The aforementioned methods may be non-therapeutic.

Suitable components, such as those listed below, may be included or excluded from cosmetic composition formulations depending on the specific combination of other components, the form of the cosmetic compositions and/or the use of the formulation ( e.g., lotion, serum, gel, cream, spray, etc.)

Thickening agents

In addition to the polymers of the rheology modifier and stabilizer polymer blend, additional thickening agents may optionally be included in the cosmetic composition in order to adjust and/or achieve a desired viscosity. However, the additional thickening agents are not necessary and can be excluded from the compositions. Non-limiting examples of thickening agents which may be included in cosmetic compositions are presented below.

Mineral thickeners

Mineral thickeners are mineral-based compounds that thicken or modify the viscosity of skin firming compositions. Non-limiting examples of inorganic thickeners include silica silylate, fumed silica, zeolite, natural clay, synthetic clay, kaolin, hectorite, organically modified hectorite (eg, INCI: pentaerythrityl tetraisostearate (and) disteardimonium hectorite (and) propylene carbonate ), an activated clay (eg, disteardimonium hectorite, stearalkonium hectorite, quaternium-18 bentonite, quaternium-18 hectorite, and benzalkonium bentonite), and a mixture thereof.

In some instances, the skin firming compositions may include one or more inorganic thickening agents selected from optionally modified silicas, optionally modified clays, and a mixture thereof. The inorganic thickeners can be chosen from optionally modified silicas, optionally modified clays and a mixture of these. In some cases, the mineral thickeners are chosen from lipophilic (organophilic) clays, in particular modified hectorites; hydrophobic treated fumed silica; hydrophobic silica aerogels, and mixtures thereof (eg, disteardimonium hectorite, silica silylate, or a mixture thereof).

Inorganic thickeners can be selected from silica silylate, fumed silica, zeolite, natural clay, synthetic clay, kaolin, hectorite, organically modified hectorite (e.g., pentaerythrityl tetraisostearate (and) disteardimonium hectorite (and) propylene), an activated clay (for example, disteardimonium hectorite, stearalkonium hectorite, quaternium-18 bentonite, quaternium-18 hectorite and benzalkonium bentonite).

Optionally modified silicas

Optionally modified silicas include fumed silica optionally subjected to a hydrophobic surface treatment, the particle size of which may be less than 1 μm. More precisely, it is possible to chemically modify the surface of the silica, by chemical reaction generating a reduced number of silanol groups present on the surface of the silica. The silanol groups can in particular be replaced by hydrophobic groups: a hydrophobic silica is then obtained. Hydrophobic groups can be:

- trimethylsiloxyl groups, which are obtained in particular by treating fumed silica in the presence of hexamethyldisilazane. The silicas thus treated are known under the name “silica silylate” according to the CTFA (6th edition, 1995). They are sold, for example, under the references Aerosil R812 by the company Degussa, and Cab-O-Sil TS-53 by the company Cabot;

- dimethylsilyloxyl or polydimethylsiloxane groups, which are obtained in particular by treatment of fumed silica in the presence of polydimethylsiloxane or dimethyldichlorosilane. The silicas thus treated are known under the name “silica dimethyl silylate” according to the CTFA (6th edition, 1995). They are sold, for example, under the references Aerosil R972 and Aerosil R974 by the company Degussa, and Cab-O-Sil TS-610 and Cab-O-Sil TS-720 by the company Cabot.

Hydrophobic fumed silica in particular can have a particle size that is nanometric to micrometric, for example ranging from about 5 to 200 nm.

The optionally modified silicas can, for example, be silica airgel particles. Silica aerogels are porous materials obtained by replacing (by drying) the liquid component of a silica gel with air. They are generally synthesized by a sol-gel process in a liquid medium and then dried, generally by extraction with a supercritical fluid, the most widely used being supercritical CO ₂ . This type of drying prevents shrinkage of the pores and the material. The sol-gel process and the various drying processes are described in detail in Brinker C J., and Scherer GW, Sol-Gel Science: New York: Academic Press, 1990.

The hydrophobic silica airgel particles may have a specific surface area per unit mass (S _M ) ranging from 500 to 1500 m ² /g, preferably from 600 to 1200 m ² /g and even better from 600 to 800 m ² / g, and a size expressed by the volume average diameter (D[0.5]) ranging from 1 to 1500 μm, better still from 1 to 1000 μm, preferably from 1 to 100 μm, in particular from 1 to 30 µm, more preferably 5 to 25 µm, more preferably 5 to 20 µm, and even more preferably 5 to 15 µm. In some cases, the hydrophobic silica airgel particles have a size expressed as volume average diameter (D[0.5]) ranging from 1 to 30 μm, preferably from 5 to 25 μm, better still from 5 to 20 µm and better still from 5 to 15 µm.

The hydrophobic silica airgel particles can have a specific surface area per unit mass (S _M ) ranging from 600 to 800 m ² /g and a size expressed by the volume average diameter (D[0.5]) ranging from 5 to 20 µm and better still 5 to 15 µm. The hydrophobic silica airgel particles may have a specific surface area per unit volume S _V ranging from 5 to 60 m ² /cm ³ , preferably from 10 to 50 m ² /cm ³ and even better from 15 to 40 m ² /cm ³ .

By hydrophobic silica is meant any silica whose surface is treated with silylation agents, for example halogenated silanes such as alkylchlorosilanes, siloxanes, in particular dimethylsiloxanes such as hexamethyldisiloxane, or silazanes, so as to functionalize the OH groups by Si--Rn silyl groups, for example trimethylsilyl groups. In some cases, it is particularly useful to use hydrophobic silica airgel particles surface-modified with trimethylsilyl groups. Mention may be made of the aerogels sold by Cabot under the references Aerogel TLD 201, Aerogel OGD 201, Airgel TLD 203, Enova Aerogel MT 1100 and Enova Aerogel MT 1200. Particularly useful aerogels include hydrophobic silica aerogels, preferably silica silyl (INCI name: silica silylate).

Optionally modified clays

Clays are silicates containing a cation which can be chosen from calcium, magnesium, aluminium, sodium, potassium and lithium cations, and mixtures thereof. Examples of this type of material include, but are not limited to, clays of the smectite family, but also of the vermiculite, stevensite and chlorite families. These clays can be of natural or synthetic origin.

Mention may in particular be made of smectites, such as saponites, hectorites, montmorillonites, bentonites or beidellite and in particular synthetic hectorites (also called laponites), such as the products marketed by Rockwood Additives Limited under the names Laponite XLS, Laponite XLG, Laponite RD, Laponite RDS and Laponite XL21 (these products are sodium and magnesium silicates and in particular sodium, lithium and magnesium silicates); bentonites, such as the product sold under the name Bentone HC by Rheox; magnesium and aluminum silicates, in particular hydrated, such as the products sold by Vanderbilt Company under the name Veegum Ultra, Veegum HS or Veegum DGT, or even calcium silicates and in particular that in synthetic form sold by the company under the name Micro-Cel C.

In some cases, organophilic clays are preferred, more particularly modified clays, such as montmorillonite, bentonite, hectorite, attapulgite and sepiolite, and mixtures thereof. The clay may be optionally modified bentonite or optionally modified hectorite. The clays can be modified with a chemical compound chosen from among quaternary amines, tertiary amines, amine acetates, imidazolines, amine soaps, fatty sulphates, alkylarylsulphonates and amine oxides, and mixtures thereof.

Mention may be made of hectorites modified with a quaternary amine, more particularly with a C10 to C22 fatty acid ammonium halide, such as a chloride, such as hectorite modified with distearyldimethylammonium chloride (CTFA name: Disteardimonium hectorite ), for example the product sold under the name Bentone 38V, Bentone 38V CG or Bentone EW CE by the company Elementis, or stearalkonium hectorites, such as Bentone 27 V. In certain cases, the clay is preferably hectorite of disteardimonium.

Mention may also be made of quaternium-18 bentonites, such as those marketed under the names Bentone 34 by the company Elementis, Tixogel VP by the company United Catalyst and Claytone 40 by the company Southern Clay; stearalkonium bentonites, such as those sold under the names Tixogel LG by United Catalyst and Claytone AF and Claytone APA by Southern Clay; or quaternium-18/benzalkonium bentonites, such as that sold under the name Claytone HT by the company Southern Clay. In some cases, it is preferable for the clay to be chosen from organophilic modified clays, in particular organophilic modified hectorites, in particular modified with distearyldimethylammonium chloride (CTFA name: Disteardimonium hectorite).

Non-mineral thickening agents

The non-mineral thickening agents, if present, may be lipophilic or hydrophilic, i.e. they may be suitable for thickening an oily phase or an anhydrous composition or they may be suitable for thickening an aqueous phase or an aqueous composition. For anhydrous compositions, lipophilic thickening agents or thickening agents that thicken anhydrous (eg, oily) compositions are useful. Also, for aqueous compositions, hydrophilic thickening agents are useful.

Non-limiting examples of non-mineral thickening agents useful for thickening anhydrous compositions include C12-22 alkyl acrylate/hydroxyethyl acrylate copolymer (INTELIMER), ethylene diamine/stearyl dilinoleate dimer copolymer such as OLEOCRAFT LP-10- PA-(MV) sold by Croda, polyamide-8 such as OLEOCRAFT LP-20-PA-(MV) sold by Croda, C10-C30 alkyl polyacrylate such as the polymer INTELIMER IPA 13-6 or INTELIMER IPA 13- 1 NG sold by Air Products & Chemicals, nylon-611/dimethicone copolymer such as Dow Corning 2-8179 gelling agent sold by Dow Corning, or dextrin palmitate such as RHEOPEARL KL2-OR sold by Chiba Flour Milling.

Other non-limiting examples of non-mineral thickening agents useful for thickening anhydrous compositions include thickening polymers such as block copolymers of styrene with isoprene, butadiene, ethylene/propylene or ethylene/ butylene, including those currently available under the tradename KRATON, and in particular hydrogenated linear styrene/isoprene diblock copolymers. A related category of thickening polymer includes polymers of alpha-methylstyrene and styrene, such as those marketed under the name KRISTALEX. Yet another thickening polymer includes the alkyl-substituted galactomannan available under the tradename N-HANCE AG. Non-mineral thickening agents useful for thickening anhydrous compositions may also include thickening polymers such as vinylpyrrolidone with polyethylene containing at least 25 methylene units, such as triacontanyl polyvinylpyrrolidone, under the trade name Antaron WP-660.

Non-limiting examples of non-mineral thickening agents which may optionally be included to thicken aqueous compositions include xanthan gum, guar gum, biosaccharide gum, cellulose, Seneca acacia gum, sclerotium gum, agarose , pechtin, gellan gum, hyaluronic acid. Furthermore, the non-mineral thickening agent(s) can be polymeric thickening agents such as, for example, ammonium polyacryloyldimethyltaurate, ammonium acryloyldimethyltaurate/VP copolymer, sodium polyacrylate, acrylate copolymers, polyacrylamide, carbomer and cross-linked polymer. acrylates/C10-30 alkyl acrylate.

Additional, non-limiting examples of various types of non-mineral thickening agents include:

Polymers of ' carboxylic acid

These polymers are crosslinked compounds containing one or more monomers derived from acrylic acid, substituted acrylic acids, and salts and esters of these acrylic acids and substituted acrylic acids, in which the crosslinking agent contains two or more double bonds carbon-carbon and is derived from a polyhydric alcohol.

Examples of commercially available carboxylic acid polymers useful herein include carbomers, which are homopolymers of acrylic acid cross-linked with allyl ethers of sucrose or pentaerythritol. Carbomers are available under the Carbopol.RTM range. 900 from B.F. Goodrich (e.g., Carbopol® 954). Additionally, other polymeric carboxylic acid agents include Ultrez® 10 (B.F. Goodrich) and copolymers of C10-30 alkyl acrylates with one or more monomers of acrylic acid, methacrylic acid or one of their short chain esters (i.e. a C1-4 alcohol), in which the crosslinking agent is an allyl ether of sucrose or pentaerythritol. These copolymers are known as C10-C30 alkyl acrylate/acrylate rheology modifier and stabilizer polymers and are commercially available under the names Carbopol.RTM. 1342, Carbopol® 1382, Pemulen TR-1, and Pemulen TR-2, from B.F. Goodrich. In other words, examples of thickening agents based on carboxylic acid polymers useful herein are those chosen from carbomers, crosslinked acrylate/C10-C30 alkyl acrylate polymers, and mixtures thereof.

Cross-linked polyacrylate polymers

The compositions of the present disclosure may optionally contain cross-linked polyacrylate polymers useful as thickening or gelling agents, including both cationic and nonionic polymers. Examples of useful crosslinked nonionic polyacrylate polymers and useful crosslinked cationic polyacrylate polymers are those described in U.S. Patent Nos ^. 5,100,660, U.S. Patent ^{No. 5,100,660} , U.S. Patent ^No. 206, US Patent ^No. 4,628,078, US Patent ^No. 4,599,379 and EP 228,868, all of which are incorporated herein by reference in their entirety.

Polyacrylamide polymers

The compositions of the present disclosure may optionally contain polyacrylamide polymers, especially nonionic polyacrylamide polymers including branched or unbranched substituted polymers. Among these polyacrylamide polymers is the nonionic polymer bearing the CTFA designation polyacrylamide and isoparaffin and laureth-7, available under the trademark Sepigel 305 from Seppic Corporation.

Other polyacrylamide polymers useful herein include multiblock copolymers of acrylamides and substituted acrylamides with acrylic acids and substituted acrylic acids. Commercially available examples of such multiblock copolymers include Hypan SR150H, SS500V, SS500W, SSA100H, from Lipo Chemicals, Inc.

The compositions may also contain thickening and texturizing gels of the type exemplified by the product line called Lubrajel® from United Guardian. These gels have moisturizing, viscosifying and stabilizing properties.

Polysaccharides

A wide variety of polysaccharides can be useful here. “Polysaccharides” are gelling agents that contain a backbone of repeating sugar (i.e. carbohydrate) units. Non-limiting examples of polysaccharide gelling agents include those selected from the group consisting of cellulose, carboxymethylhydroxyethylcellulose, cellulose acetate propionate carboxylate, hydroxyethylcellulose, hydroxyethylethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylhydroxyethylcellulose, microcrystalline cellulose, sodium cellulose sulfate, and mixtures thereof. Alkyl-substituted celluloses are also useful. Among the alkylhydroxyalkylcellulose ethers, the product designated by the CTFA under the name cetylhydroxyethylcellulose, which is the ether of cetyl alcohol and hydroxyethylcellulose, is preferred. This material is sold under the Natrosol® CS Plus brand of Aqualon Corporation.

Other useful polysaccharides include scleroglucans comprising a linear chain of (1-3)-linked glucose units with one (1-6)-linked glucose every third unit, a commercially available example of which is ClearogelTM, supplied by CS11 by Michel Mercier Products Inc.

Erasers

Other thickening and gelling agents useful herein include materials which are primarily derived from natural sources. Non-limiting examples of these thickening and/or gelling agents include gums such as those chosen from acacia, agar, algin, alginic acid, ammonium alginate, amylopectin, calcium alginate, calcium carrageenan, carnitine, carrageenan, dextrin, getin, geln gum, guar gum, hydroxypropyltrimonium guar chloride, hectorite, hyaluronic acid, hydrated silica, hydroxypropyl chitosan, hydroxypropyl guar, karaya gum, kelp, locust bean gum, natto gum, potassium alginate, potassium carrageenan, alginate propylene glycol, sclerotium gum, sodium carboxymethyl dextran, sodium carrageenan, gum tragacanth, xanthan gum, and mixtures thereof.

Non-limiting examples of water-soluble natural polymers include gum arabic, gum tragacanth, gum karaya, guar gum, gellan gum, tara gum, locust bean gum, tamarind gum, sodium alginate, propylene glycol ester of alginic acid, carrageenan, farcelluran, agar, high methoxy pectin, low methoxy pectin, xanthine, chitosan, starch (e.g. starch derived from corn, potato, wheat, rice, sweet potato and tapioca, a-starch, soluble starch), fermentation polysaccharide (e.g. xanthan gum, pullulan, carcirane, dextran), acid hetero-polysaccharide derived from plant calli belonging to the species Polyantes (e.g. , tuberous polysaccharide), proteins (eg, sodium casein, gelatin, albumin), chondroitin sulfate and hyaluronic acid.

Non-limiting examples of synthetic water-soluble polymers include polyvinyl alcohol, sodium polyacrylate, sodium polymethacrylate, polyacrylic acid glycerol ester, carboxyvinyl polymer, polyacrylamide, polyvinylpyrrolidone, polyvinyl methyl ether, polyvinyl sulfone, maleic acid copolymer, polyethylene oxide , polydiallylamine, polyethyleneimine, water-soluble cellulose derivatives (eg, carboxymethylcellulose, methylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, cellulose sulfate sodium salt), and starch derivatives (eg, starch oxide, dialdehyde starch, dextrin, achroodextrin, acetyl starch, starch phosphate, carboxymethyl starch, hydroxyethyl starch, hydroxypropyl starch).

The amount of thickening agent(s) in the compositions of this disclosure, other than the polymers of the polymer blend, can vary. In some instances, the compositions do not include thickening agent(s) other than the polymers of the polymer blend, i.e. the compositions may be free or substantially free of thickening agent(s) other than the polymers of the polymer blend. However, in some cases, the compositions may include about 0.01 to about 10% by weight of thickening agent(s) other than the polymers of the polymer blend. Also, in some cases, the composition may include about 0.01 to about 6% by weight, about 0.01 to about 5% by weight, about 0.01 to about 4% by weight, about 0.01 to about 2% by weight, about 0.01 to about 1% by weight, about 0.1 to about 10% by weight, about 0.1 to about 6% by weight, about 0.1 to about 5% by weight, about 0.1 to about 4% by weight, about 0.1 to about 2% by weight, or 5% by weight or less, 4% by weight or less, 3% by weight or less, 2% by weight, 1% by weight or less, 0.5% by weight or less, or 0.1% by weight or less of thickening agent(s) other than the polymers of the polymer blend.

Mattifying agent(s )

The compositions of this disclosure may optionally include one or more matting agents. The amount of matting agents in the cosmetic composition can be, for example, about 0.1 to about 10% by weight, about 0.1 to about 8% by weight, about 0.1 to about 6% by weight , about 0.1 to about 5% by weight, about 0.1 to about 4% by weight, about 0.1 to about 3% by weight, about 0.1 to about 2% by weight, about 0.1 to about 1% by weight; about 0.25 to about 10% by weight, about 0.25 to about 8% by weight, about 0.25 to about 1% by weight, about 0.25 to about 1% by weight, about 0.25 to about 1% by weight, about 0.25 to about 1% by weight, about 0.25 to about 1% by weight. % by weight, about 0.25 to about 6% by weight, about 0.25 to about 5% by weight, about 0.25 to about 4% by weight, about 0.25 to about 3% by weight, about 0 .25 to about 2% by weight, about 0.25 to about 1% by weight; about 0.5 to about 10% by weight, about 0.5 to about 8% by weight, about 0.5 to about 6% by weight, about 0.5 to about 5% by weight, about 0.5 to about 4% by weight, about 0.5 to about 3% by weight, about 0.5 to about 2% by weight, about 0.5 to about 1% by weight; about 0.75 to about 10% by weight, about 0.75 to about 8% by weight, about 0.75 to about 6% by weight, about 0.75 to about 5% by weight, about 0.75 to about 4% by weight, about 0.75 to about 3% by weight, about 0.75 to about 2% by weight; about 1 to about 10% by weight, about 1 to about 8% by weight, about 1 to about 6% by weight, about 1 to about 5% by weight, about 1 to about 4% by weight, about 1 to about 3 wt%, or about 1 to about 2 wt%, based on the total weight of the composition.

Mattifying agents (also called “mattifying fillers”) refer to materials that give the complexion more transparency and a veiled effect and give the skin a natural and desirable appearance, without giving it a greasy, shiny and shiny appearance. To do this, these materials are often absorbent fillers such as talc, silica, kaolin or fillers with optical light scattering properties, properties known as the “soft focus” effect. In addition to reducing shine or oiliness, matting agents can contribute to the overall texture and thickness of a cosmetic composition. Mattifying agents are often (but not always) particulates or powders.

Cosmetic compositions containing matting agents can be characterized using the following protocol. The test composition is spread at a rate of 2 mg/cm ² on a contrast card (Prufkarte type 24/5-250 cm ² sold by the company Erichsen) using a mechanical film spreader. The composition is then dried overnight at a temperature of 37° C. before measuring its reflection using a gonioreflectometer sold by the company Micromodule. The intensity reflected specularly at 30° (R) and diffused at 90° (D) are successively measured. The result obtained is the ratio R between the specular reflection and the diffuse reflection. The value of R is all the lower as the matting effect provided by the bulking agent is significant. An R value of 2 or less generally indicates a mattifying effect. Mattifying agents according to the present disclosure include those which, preferably at a content of 5% in a cosmetic composition, give an R value of less than 1.5 and preferably less than 1.

Non-limiting examples of matting agents include: silicas, clays, silicate derivatives, hydrophobic silica airgel particles, porous silica microparticles, for example SB150 and SB700 silica beads from Miyoshi whose average size is 5 microns ; Sunsphere Series-H products from Asahi Glass, for example Sunsphere H33, H51 and H53 with sizes of 3, 5 and 5 µm respectively, polytetrafluoroethylene powders, for example PTFE Ceridust 9205F from Clariant, with an average size of 8 microns, powders silicone resin, for example Tospearl 145A silicone resin from GE Silicone, with an average size of 4.5 microns, hollow hemispherical silicone particles, for example NLK 500, NLK 506 and NLK 510 from Takemoto Oil and Fat, powders acrylic copolymers, in particular polymethyl(meth)acrylate, for example PMMA Jurymer MBI particles from Nihon Junyoki, with an average size of 8 microns, hollow PMMA spheres sold under the name Covabead LH 85 by the company Wackher, and expanded vinylidene chloride/acrylonitrile/methylene methacrylate microspheres sold under the name Expancel; wax powders, for example MicroEase 114S paraffin particles from MicroPowders, with an average size of 7 microns, polyethylene powders, comprising in particular at least one ethylene/acrylic acid copolymer, and in particular consisting of ethylene/acrylic acid copolymers , for example Sumitomo's Flobeads EA 209 particles (with an average size of 10 microns), cross-linked elastomeric organopolysiloxane powders coated with silicone resin, in particular silsesquioxane resin, as described, for example, in US patent no. ^o 5,538,793. Such elastomeric powders are marketed under the names KSP-100, KSP-101, KSP-102, KSP-103, KSP-104 and KSP-105 by the company Shin-Etsu, polyamide powders (Nylon ), for example particles of Nylon 12 of the Orgasol type from Atofina, with an average size of 10 microns, powders of the polymethyl methacrylate (PMMA) type, talc, silica/TiO2 or silica/zinc oxide composites, powders of e styrene / acrylic copolymer, and mixtures thereof.

Among the clays, mention may be made of clays of the smectite family, such as laponite, of the kaolinite family, such as kaolinite, dickite or nacrite, optionally modified clays of the halloysite, dombassite, antigorite family, benthierines or pyrophyllites, montmorillonites, beidellites, vermiculites, talc, stevensite, hectorites, saponites, chlorites, sepiolite and illite. Note that some clays can also be categorized as thickening agents.

The clays include products which are described, for example, in the publication Mineralogy of clays, S. Caillere, S. Henin, M. Rautureau, 2nd edition 1982, Masson, which is incorporated herein by reference in its entirety. Natural clay is a sedimentary rock composed largely of specific minerals, silicates, generally aluminum. Kaolin is a natural clay. Clays can also be synthetic. Clays can also be chemically modified by various compounds, such as acrylic acids, polysaccharides (eg carboxymethylcellulose) or organic cations. In some cases, the cosmetic compositions of the present disclosure include a clay selected from the group consisting of kaolinite, montmorillonites, saponites, laponites, hectorites (including disteardimonium hectorite) and illites.

Silica derivatives which may be mentioned include silica powders, for example the porous silica microspheres sold under the name SILICA BEADS SB-700 sold by the company Miyoshi, the products SUNSPHERE H51, SUNSPHERE H33 and SUNSPHERE H53 sold by the company Asahi Glass; amorphous silica microspheres coated with polydimethylsiloxane sold under the name SA SUNSPHERE H-33 and SA SUNSPHERE H-53 sold by the company Asahi Glass; silica microbeads such as those sold under the name SB150 by the company Miyoshi.

In some cases, the cosmetic compositions include one or more matting agents selected from the group consisting of cross-linked polymer of methyl methacrylate/glycol dimethacrylate, cross-linked polymer of vinyl dimethicone/methicone silsesquioxane, cross-linked polymer of methyl methacrylate, nylon-12, polyamides , polyethylene, talc, titanium dioxide, silica, aluminum starch octenylsuccinate, clays (such as hectorite clays including distearidimonium hectorite), silicas, polymethylsilsequioxane, and a mixture thereof. Preferably, the matting agent, if present, is aluminum starch octenylsuccinate.

Active agent(s) for the skin

The cosmetic compositions may optionally include one or more active agents for the skin, such as anti-aging agents, anti-wrinkle active agents, antioxidants, humectants, moisturizing ingredients, depigmenting agents, and/or oily skin treatment agents, etc. The skin active agents can be included in the cosmetic composition in a range from greater than zero to about 10% by weight, based on the total weight of the composition. For example, the total amount of skin-active agents can range from greater than zero to about 9% by weight, greater than zero to about 8% by weight, greater than zero to about 7% by weight, greater than zero and about 6% by weight, greater than zero and about 5% by weight, greater than zero and about 4% by weight, greater than zero and about 3% by weight, greater than zero and about 2% by weight; between about 10 ppm and about 10 wt% (100,000 ppm), about 10 ppm to about 5 wt% (50,000 ppm), about 10 ppm to about 2.5 wt% (25,000 ppm), about 10 ppm to about 1 wt% (10,000 ppm), about 10 ppm to about 0.5 wt% (5,000 ppm), about 10 ppm to about 0.3 wt% (3,000 ppm), about 10 ppm about 0.2 wt% (2000 ppm), about 10 ppm to about 0.1 wt% (1000 ppm), about 10 ppm to 500 ppm; about 0.05 to about 10% by weight, about 0.05 to about 5% by weight, about 0.05 to about 2.5% by weight, about 0.05 to about 1% by weight, about 0.05 about 0.5% by weight; about 0.1 to about 10% by weight, about 0.1 to about 5% by weight, about 0.1 to about 2.5% by weight, about 0.1 to about 1% by weight, about 0.1 about 0.5% by weight; about 1 to about 10% by weight, about 1 to about 8% by weight, about 1 to about 6% by weight, about 1 to about 5% by weight, about 1 to about 4% by weight, about 1 to about 3 % in weight ; about 2 to about 10% by weight, about 2 to about 8% by weight, about 2 to about 5% by weight, about 1 to about 5% by weight, about 1 to about 4% by weight, about 1 to about 3 wt%, about 2 to about 10 wt%, about 2 to about 8 wt%, about 2 to about 6 wt%, about 2 to about 5 wt%, about 2 to about 4 wt%; about 3 to about 10 wt%, about 3 to about 8 wt%, about 3 to about 6 wt%, about 3 to about 5 wt%; about 4 to about 10% by weight, about 4 to about 8% by weight, about 4 to about 6% by weight, including intermediate ranges and subranges, based on the total weight of the cosmetic composition.

A non-limiting discussion of skin-active agents that may, in some cases, be included in the cosmetic composition is provided below:

Humectants and/or moisturizing ingredients

Examples of humectants and/or moisturizing ingredients include glycerol and its derivatives, urea and its derivatives, in particular Hydrovance marketed by National Starch, lactic acid, hyaluronic acid, AHA, BHA, sodium pidolate, xylitol, serine, sodium lactate, ectoin and its derivatives, chitosan and its derivatives, collagen, plankton, an extract of Imperata cylindra sold under the name Moist 24 by Sederma, homopolymers of acrylic acid such as Lipidure-HM from NOF Corporation, beta-glucan and in particular sodium carboxymethyl beta-glucan Mibelle-AG-Biochimie, a mixture of oils of passion flower, apricot, corn and rice bran sold by Nestlé under the name NutraLipids, a C-glycoside derivative, in particular C-13-D-xylopyranoside-2-hydroxypropane in the form of a 30% solution by weight of active ingredient in a water mixture /propylene glycol (60/40 pt%) such as the product manufactured by the company Chimex under the trade name "Me xoryl SBB", a rosehip oil marketed by Nestlé, an extract of microalgae Prophyridium cruentum enriched in zinc, marketed under the name Vincience Algualane spheres of collagen and chondroitin sulphate of marine origin (Atelocollagen) sold by the company Engelhard Lyon under the name Marine Filling Spheres, spheres of hyaluronic acid such as those marketed by Engelhard Lyon, and arginine.

Depigmenting agents

Among the depigmenting agents capable of being incorporated into the cosmetic composition, there are included those chosen from alpha and beta arbutin, ferulic acid, lucinol and its derivatives, kojic acid, resorcinol and its derivatives, tranexamic acid and its derivatives, gentisic acid, homogentisic acid, gentisate or methyl homogentisate, dioic acid, D calcium panthetin sulfonate, lipoic acid, ellagic acid, vitamin B3, linoleic acid and its derivatives, certain compounds derived from plants such as chamomile, bearberry, aloe family (vera, ferox, bardensis), mulberry, skullcap, water kiwi (Actinidia chinensis) marketed by Gattefosse, an extract from the root of Paeonia suffruticosa, such as that marketed by Ichimaru Pharcos under the name Liquid Botanpi Be, an extract of brown sugar (Saccharum officinarum) such as the extract of molasses marketed by Taiyo Kagaku under the name Liquid Molasses, without this your list is exhaustive. Among the specific depigmenting agents, mention may be made of alpha and beta arbutin, ferulic acid, kojic acid, resorcinol and its derivatives, D panthetein calcium sulfonate, lipoic acid, ellagic acid, vitamin B3, water kiwi (Actinidia chinensis) marketed by Gattefosse, a root extract of Paeonia suffruticosa, such as that marketed by the company Ichimaru Pharcos under the name Botanpi Liquid B.

Anti-wrinkle active

The cosmetic composition can include one or more anti-wrinkle active agents. The term “anti-wrinkle active” designates a natural or synthetic compound producing a biological effect, such as increasing the synthesis and/or the activity of certain enzymes, when it is brought into contact with an area of wrinkled skin, which has the effect of reducing the appearance of wrinkles and/or fine lines. Exemplary anti-wrinkle active agents can be chosen from: desquamating agents, anti-glycation agents, NO-synthase inhibitors, agents stimulating the synthesis of dermal or epidermal macromolecules and/or preventing their degradation, agents stimulating the proliferation of fibroblasts and/or keratinocytes, or stimulating keratinocyte differentiation; muscle relaxant and/or dermo-decontracting agents, anti-free radical agents, and mixtures thereof. Examples of such compounds are: adenosine and its derivatives and retinoids (such as, retinol palmitate and retinol), ascorbic acid and its derivatives such as ascorbyl magnesium phosphate and ascorbyl glucoside; nicotinic acid and its precursors such as nicotinamide; ubiquinone; glutathione and its precursors such as L-2-oxothiazolidine-4-carboxylic acid, C-glycoside compounds and their derivatives as described in particular in document EP-1345919, in particular C-beta-D-xylopyranoside- 2-hydroxy-propane as described in particular in document EP-1345919, plant extracts including sea fennel and olive leaf extracts, as well as plants and their hydrolysates such as rice protein hydrolysates or soy protein; extracts of seaweed and in particular of laminaria, extracts of bacteria, sapogenins such as diosgenin and extracts of Dioscorea plants, in particular of wild yam, comprising: a-hydroxy acids, f3-hydroxy acids, such as salicylic acid and n-octanoyl-5-salicylic oligopeptides and pseudodipeptides and their acylated derivatives, in particular {2-[acetyl-(3-trifluoromethyl-phenyl)-amino]-3-methyl-}acetic acid and lipopeptides marketed by the company under the trade names SEDERMA Matrixyl 500 and Matrixyl 3000; lycopene, manganese salts and magnesium salts, in particular gluconates, and mixtures thereof. In at least one case, the cosmetic composition includes derivatives of adenosine, such as non-phosphate derivatives of adenosine, such as in particular 2′-deoxyadenosine, 2′,3′-adenosine isopropoylidene; toyocamycin, 1-methyladenosine, N-6-methyladenosine; adenosine N-oxide, 6-methylmercaptopurine riboside, 6-chloropurine riboside. Other derivatives include adenosine receptor agonists such as phenylisopropyl adenosine ("PIA"), 1-methylisoguanosine, N6-cyclohexyladenosine (CHA), N6-cyclopentyladenosine (CPA), 2-chloro- N6-cyclopentyladenosine, 2-chloroadenosine, N6-phenyladenosine, 2-phenylaminoadenosine, MECA, N 6-phenethyladenosine, 2-p-(2-carboxy-ethyl) phenethyl-amino-5'-N-ethylcarboxamido adenosine (CGS- 21680), N-ethylcarboxamidoadenosine (NECA), 5'(N-cyclopropyl)-carboxamidoadenosine, DPMA (PD 129.944) and metrifudil.

Active agent for oily skin

The cosmetic composition may optionally include a skin active agent for oily skin. These agents can be sebo-regulating or anti-seborrheic agents capable of regulating the activity of the sebaceous glands. Examples of skin actives to treat oily skin include: retinoic acid, retinol, benzoyl peroxide, sulfur, vitamin B6 (pyridoxine or chloride), selenium, glasswort-mixture of cinnamon, tea and octanoylglycine such as--15 Sepicontrol A5 TEA from Seppic-mixture of cinnamon, sarcosine and octanoylglycine marketed in particular by Seppic under the name Sepicontrol A5--zinc salts such as zinc gluconate, zinc pyrrolidonecarboxylate (or zinc pidolate) , zinc lactate, zinc aspartate, zinc carboxylate, zinc salicylate 20, zinc cysteate; --Derivatives in particular of copper and copper pidolate in the form of Cuivridone Solabia--plant extracts of Arnica montana, Cinchona succirubra, Eugenia caryophyllata, Humulus lupulus, Hypericum perforatum, Mentha pipenta 25 Rosmarinus officinalis, Salvia officinalis and Thymus vulgaris, all marketed for example by Maruzen--extracts of meadowsweet (Spiraea ulmaria), such as that sold under the name Sebonormine by Silab--extracts of the seaweed Laminaria saccharina, such as that sold under the name Phlorogine by Biotechmarine- -the root extracts of mixtures of burnet (Sanguisorba officinalis/Poterium officinale), ginger rhizomes (Zingiber officinalis) and cinnamon bark (Cinnamomum cassia), such as those sold under the name Sebustop by Solabia--extracts of flax seeds such as those sold as Linumine by Lucas Meyer--Phellodendron extracts such as those sold as Phellodendron BG extract by Maruzen or Oubaku Liquid B by Ichimaru Pharcos-- blends of argan oil of Serenoa serrulata (saw palmetto) extract and sesame seeds such as that sold under the name Regu SEB by Pentapharm-- blends of extracts of willowherb, Terminalia chebula, nasturtium and bioavailable zinc (microalgae), such as that sold under the name Seborilys Green Tech; -- extracts of Pygeum afrianum such as those sold under the name Pygeum afrianum sterolic lipid extract by Euromed-- extracts of Serenoa serrulata such as those sold under the name Viapure Sabal by Actives International, and those sold by the company Euromed-- extracts of mixtures of plantain, Berberis aquifolium and sodium salicylate 20 such as those sold as Seboclear Rahn--clove extract such as that sold as Clove Extract Powder by Maruzen--seed oil argan such as that sold under the name Lipofructyl Laboratoires Serobiologiques; - 25-lactic protein filtrates, such as that sold under the name Normaseb by Sederma- laminar algae extracts, such as that sold under the name Laminarghane by Biotechmarine--oligosaccharides of the algae Laminaria digitata, such as those sold under the name Phycosaccharide 30 AC by the company Codif--sugar cane extracts such as those sold under the name Policosanol by the company Sabinsa, sulphonated shale oil, such as those sold under the name Ichthyol Pale by Ichthyol --extracts of meadowsweet (Spiraea ulmaria) such as those sold under the name Cytobiol Ulmaire by the company Libiol--sebacic acid, in particular sold in the form of sodium polyacrylate gel under the name Sebosoft by Sederma--glucomannans extracted from konjac tuber and modified with alkylsulfonate chains such as those sold under the name Biopol Beta by Arch Chemical--extracts of Sophora angustifolia, such as those sold under the name Sophora powder or Sophora extract by Bi oland--extracts of cinchona succirubra bark such as those sold as Red Bark HS by Alban Muller--extracts of Quillaja saponaria such as those sold as Panama wood HS by Alban Muller--chain-grafted glycine undecylenic, such as that sold under the name Lipacide UG OR by SEPPIC-mixture of oleanolic acid and nordihydroguaiaretic acid, such as that sold in gel form under the name AC. Net of Sederma; 20--phthalimidoperoxyhexanoic acid--citrate tri (C12-C13) sold under the name COSMACOL.RTM. ECI from Sasol; trialkyl (C14-C15) citrate sold under the name COSMACOL.RTM. ECL by Sasol; 10-hydroxydecanoic acid, including October 25-hydroxydecanoic acid mixtures, sebacic acid and 1,10-decandiol such as that sold as Acnacidol BG by Vincience and mixtures thereof.

Antioxidants

Vitamin C and its derivatives can be used, including ascorbic acid, sodium ascorbate and the fat-soluble esters tetrahexyldecyl ascorbate and ascorbyl palmitate, ascorbyl magnesium phosphate, ascorbyl-glucoside, glucosamine ascorbate, acetate d ascorbyl, etc. In addition, plant extracts containing a high amount of vitamin C, such as camu berry (Myrciaria dubia), acerola, emblica officinalis, and bioflavonoids from rose hips and citrus fruits can be used, including water-soluble bioflavonoids like hesperidin methyl chalcone.

Sesame (Sesamum indicum) or sesame lignan can also be added. Sesame and its lignans (fibrous compounds associated with sesame) act as antioxidants. Sesame seed lignans greatly enhance the activity of vitamin E.

Other antioxidants include tocopherols (eg, d-α-tocopherol, d-β-tocopherol, d-γ-tocopherol, d-delta-tocopherol), tocotrienols (eg, d-α-tocotrienol, d-β -tocotrienol, d-γ.-tocotrienol, d-delta-tocotrienol,) and vitamin E (α-tocopherol acetate). These compounds can be isolated from natural sources, prepared by synthetic means, or mixtures thereof. Tocotrienol-enriched vitamin E preparations can be made by fractionating vitamin E preparations to remove a portion of the tocopherols and recover a more highly concentrated tocotrienol preparation. Useful tocotrienols are natural products isolated, for example, from wheat germ, cereal or palm oil using high performance liquid chromatography, or isolated by alcohol extraction and/or molecular distillation at from barley, brewers' grain or oats. As used herein, the term "tocotrienols" includes the tocotrienol-rich fractions obtained from these natural products as well as the pure compounds. The increased activity of glutathione peroxidase protects the skin from oxidative damage.

Additionally, carotenoids, especially the xanthophyll type, are also useful antioxidants that can be utilized. Xanthophyll-like carotenoids include molecules such as lutein, canthaxanthin, cryptoxanthin, zeaxanthin, and astaxanthin. Xanthophylls protect compounds, such as vitamin A, vitamin E, and other carotenoids.

Flavonoids

The active agent can be an antioxidant chosen from the group of flavonoids. In some cases, the flavonoid is a flavanone (derived from 2,3-dihydro-2-phenylchromen-4-one). Flavones include: Butine, Eriodictyol, Hesperetin, Hesperidin, Homoeriodictyol, Isosakuranetin, Naringenin, Naringin, Pinocembrin, Poncirin, Sakuranetin, Sakuranin, and Sterubin. The flavonoid may be a flavanonol (derived from 3-hydroxy-2,3-dihydro-2-phenylchromen-4-one). Flavanols include: Taxifolin, Aromadedrin, Chrysandroside A, Chrysandroside B, Xeractinol, Astilbin, and Fustin. The flavonoid may be a flavone (derived from 2-phenylchromen-4-one). Flavones include: Apigenin, Luteolin, Tangeritin, Chrysine, Baicalein, Scutellarein, Wogonin, Synthetic Flavones: Diosmine, and Flavoxate. The flavonoid may be a flavonol (derived from 3-hydroxy-2-phenylchromen-4-one). Flavonols include: 3-Hydroxyflavone, Azaleatin, Fisetin, Galangin, Gossypetin, Kaempferide, Kaempferol, Isorhamnetin, Morin, Myricetin, Natsudaidaine, Pachypodol, Quercetin, Rhamnazine, Rhamnetin, Azalein, Hyperoside, Isoquercitin, Kaempferitrin, Myricitrin, Quercitrin, Robinin, Rutin, Spiraeoside, Xanthorhamnin, Amurensin, Icariin, and Troxerutin. The flavonoid may be a flavan-3-ol (derivatives of 2-phenyl-3,4-dihydro-2H-chromen-3-ol). Flavan-3-ols include: Catechin, Epicatechin, Epigallocatechin, Epicatechin Gallate, Epigallocatechin Gallate, Epiafzelechin, Fisetinidol, Guibourtinidol, Mesquitol, and Robinetinidol. The flavonoid may be a flavan-4-ol (derived from 2-phenylchroman-4-ol). Flavan-4-ols include: Apiforol and Luteoforol. The flavonoid may be an isoflavone (derived from 3-phenylchromen-4-one). Isoflavones include: Genistein, Daidzein, Biochanin A, Formononetin, and Daidzein's metabolite Equol.

The antioxidant can be an anthocyanidin (derived from the 2-phenylchromenylium cation). Anthocyanidins include: Aurantinidin, Cyanidin, Delphinidin, Europinidin, Luteolinidin, Pelargonidin, Malvidin, Peonidin, Petunidin, Rosinidin, and Xanthone.

The antioxidant can be a Dihydrochalcone (derived from 1,3-diphenyl-1-propanone). Dihydrochalcones include: Phloretin, Dihydrochalcone phloretin Phlorizine, Aspalathine, Naringine dihydrochalcone, Neohesperidin dihydrochalcone, and Nothofagin. Without limiting the mode of action of the invention, dihydrochalcones can exert an antioxidant effect by reducing reactive free radicals, such as reactive oxygen and reactive nitrogen species.

The antioxidant may be an anthocyanin. Anthocyanins and their derivatives are antioxidants. Anthocyanins encompass a class of flavonoid compounds that are naturally occurring water-soluble compounds responsible for the red, purple, and blue colors of many fruits, vegetables, grains, and flowers. Also, anthocyanins are collagenase inhibitors. Inhibition of collagenase helps in preventing and reducing wrinkles, increasing skin elasticity, etc. which are caused by a reduction in collagen in the skin. Anthocyanins can be obtained from any portion of various plant sources, such as fruit, flower, stem, leaves, root, bark or seeds. Those skilled in the art will appreciate that certain portions of the plant may contain naturally higher levels of anthocyanins and therefore these portions are used to obtain the desired anthocyanins. In some cases, the antioxidants may include one or more betacyanins. Betacyanins, like anthocyanins, can be obtained from natural sources and are antioxidants.

The antioxidant can be a phenylpropanoid (derivatives of cinnamic acid). Phenylpropanoids include: cinnamic acid, caffeic acid, ferulic acid, trans-ferulic acid (including its antioxidant pharmacore, 2,6-dihydroxyacetophenome), 5-hydroxyferulic acid, sinapic acid, coumaryl alcohol, coniferyl alcohol, sinapyl alcohol, Eugenol , Chavicol, Safrole, P-coumaric acid and sinapinic acid. Without limiting the mode of action of the invention, phenylpropanoids can neutralize free radicals.

The antioxidant can be a Chalcone (derived from 1,3-diphenyl-2-propen-1-one). Chalcones include: Butein, Okanin, Carthamin, Marein, Sophoradin, Xanthohumol, Flavokvain A, Flavokavain B, Flavokavin C, and synthetic Safalcone.

The antioxidant may be a curcuminoid. Curcuminoids include: curcumin, desmethoxycurcumin, bis-desmethoxycurcumin, tetrahydrocurcumin and tetrahydrocurcuminoids. Curcumin and tetrahydrocurcuminoids can be derived from Curcuma longa rhizomes. Tetrahydrocurcumin, a metabolite of curcumin, has been shown to be a stronger and more stable antioxidant than curcumin.

The antioxidant may be a tannin. Tannins include: tannin, terflavin B, glucogallin, gallic acid and quercitannic acid.

The antioxidant may be a stilbenoid. Stilbenoids include: resveratrol, pterostilbene and piceatannol. Resveratrol may include, but is not limited to, 3,5,4'-trihydroxystilbene, 3,4,3',5'-tetrahydroxystilbene (piceatannol), 2,3',4,5'-tetrahydroxystilbene (oxyresveratrol), 4,4'-dihydroxystilbene and its alpha and beta glucoside, galactoside and mannoside derivatives.

The antioxidant can be a coumarin (derivatives of 2H-chromene-2-one). Coumarins include: 4-Hydroxycoumarin, Umbelliferone, Aesculetin, Herniarin, Auraptene, and Dicoumarol.

The antioxidant may be a carotenoid. Carotenoids include: beta-carotene, alpha-carotene, gamma-carotene, beta-cryptoxanthin, lycopene, lutein and idebenone. Sesame (Sesamum indicum) or sesame lignans can also be added. Sesame and its lignans (fibrous compounds associated with sesame) act as antioxidants. Sesame seed lignans greatly enhance the activity of vitamin E.

The antioxidant can be: xanthone, butylated hydroxytoluene, 2,6-di-tert-butylphenol, 2,4-dimethyl-6-tert-butylphenol, gallic acid, eugenol, uric acid, alpha lipoic acid, ellagic acid, chicoric acid , Chlorogenic Acid, Rosmarinic Acid, Salicylic Acid, Acetylcysteine, S-Allyl Cysteine, Barbigerone, Chebulagic Acid, Edaravone, Ethoxyquin, Glutathione, Hydroxytyrosol, Idebenone, Melatonin, N-Acetylserotonin, Nordihydroguaiaretic Acid, Oleocanthal, Oleuropein, Paradol, Piceatannol, Probucol , Propyl gallate, Protocatechuic acid, Pyritinol, Rutin, Secoisolariciresinol diglucoside, Sesamin, Sesamol, Silibinin, Silymarin, Theaflavin, Theaflavin digallate, Thmoquinone, Trolox, Tyrosol, Polyunsaturated fatty acids, and sulfur-based antioxidants such as Methionine or Lipoic acid .

C-glycoside(s)

Cosmetic compositions may include a C-glycoside, for example, as a skin active ingredient. For example, a C-glycoside in an amount of about 0.1 to about 10% by weight, relative to the total weight of the cosmetic composition. For example, the amount of C-glycoside present in the cosmetic composition can be from about 0.1 to about 10% by weight, from about 0.1 to about 9% by weight, from about 0.1 to about 8% by weight, about 0.1 to about 7% by weight, about 0.1 to about 6% by weight, about 0.1 to about 5% by weight, about 0.1 to about 4% in weight ; about 1 to about 10 wt%, about 1 to about 9 wt%, about 1 to about 8 wt%, about 1 to about 7 wt%, about 1 to about 6 wt%, about 1 to about 5 % by weight, about 1 to about 4 % by weight. %, about 1 to about 4% by weight; about 2 to about 10 wt%, about 2 to about 9 wt%, about 2 to about 8 wt%, about 2 to about 7 wt%, about 2 to about 6 wt%, about 2 to about 5 wt%, about 2 to about 4 wt%; about 3 to about 10 wt%, about 3 to about 9 wt%, about 3 to about 10 wt%, about 3 to about 10 wt%, about 3 to about 10 wt%, about 3 to about 10 % by weight, about 3 to about 10 % by weight. wt%, about 3 to about 9 wt%, about 3 to about 8 wt%, about 3 to about 7 wt%, about 3 to about 6 wt%, about 3 to about 5 wt%, or about 3 to about 4% by weight, relative to the total weight of the cosmetic composition.

The cosmetic composition may include one or more C-glycoside(s) having a structure in accordance with the general formula (I):

in which :

- R represents a saturated C ₁ to C ₁₀ , in particular C ₁ to C ₄ , alkyl radical, which may optionally be substituted by at least one radical chosen from OH, COOH or COOR'' ₂ , with R'' ₂ being a radical saturated C ₁ -C ₄ alkyl,

- S represents a monosaccharide or a polysaccharide comprising up to 20 sugar units, in particular up to 6 sugar units, in the form of pyranose and/or furanose and of the L and/or D series, said monosaccharide or polysaccharide possibly being substituted by a necessarily free hydroxyl group and optionally one or more optionally protected amine functions, and

- X represents a radical chosen from the groups -CO-, -CH(OH)-, -CH(NH ₂ )-, -CH(NHCH ₂ CH ₂ CH ₂ OH)-, -CH(NHPh)- and -CH (CH ₃ )- and in particular a -CO-, -CH(OH)- or -CH(NH ₂ )- radical and more particularly a -CH(OH)- radical,

in which the S-CH ₂ -X bond represents a C-anomeric bond, which may be α or β, as well as their physiologically acceptable salts, their solvates, such as hydrates, and their optical and geometric isomers.

The C-glycosides of formula (I) preferably have a structure, in which R denotes a saturated linear C ₁ to C ₆ alkyl radical, in particular C ₁ to C ₄ , preferentially C ₁ to C ₂ , and so more preferably a methyl radical. Mention may in particular be made of the following alkyl groups for C-glycosides (such as R): methyl, ethyl, isopropyl, n-propyl, n-butyl, t-butyl, isobutyl, sec-butyl, pentyl, n-hexyl groups , cyclopropyl, cyclopentyl and cyclohexyl.

According to at least one embodiment, it is possible to use a C-glycoside compound corresponding to the formula (I) for which S represents a monosaccharide or polysaccharide comprising up to 6 sugar units, such as in the form of pyranose and/or furanose and of chimeric series L and/or D. The mono- or polysaccharide has at least one free hydroxyl function and/or optionally one or more protected amine functions, X and R moreover retaining all the definitions given above.

Advantageously, a monosaccharide of the invention can be chosen from D-glucose, D-galactose, D-mannose, D-xylose, D-lyxose or L-fucose, L-arabinose, L-rhamnose, D-glucuronic acid, D -galacturonic, D-iduronic, N-acetyl-D-glucosamine or N-acetyl-D-galactosamine and advantageously designates D-glucose, D-xylose, N-acetyl-D-glucosamine, L-fucose and a mixture of these- this. In one case, the monosaccharide is D-xylose.

More particularly, a polysaccharide of the invention comprising up to 6 sugar units can be chosen from D-maltose, D-lactose, D-cellobiose, D-maltotriose, a disaccharide combining a uronic acid chosen from D-iduronic acid or D-glucuronic acid with a hexosamine chosen from D-galactosamine, D-glucosamine, N-acetyl-D-galactosamine or N-acetyl-D-glucosamine, an oligosaccharide comprising at least one xylose which can advantageously be chosen from xylobiose, methyl-xylobioside, xylotriose, xylotetraose, xylopentaose, xylohexaose and their mixture. Preferably, the oligosaccharide is xylobiose, which is composed of two xylose molecules linked by a 1-4 bond. More particularly, S can represent a monosaccharide selected from D-glucose, D-xylose, L-fucose, D-galactose, D-maltose, and a mixture thereof. In some cases, the monosaccharide is D-xylose.

Preferably, the C-glycoside can be a derivative of formula (I) for which:

- R represents a linear C ₁ -C ₄ , in particular C ₁ -C ₂ , unsubstituted alkyl radical, in particular a methyl radical;

- S represents a monosaccharide as described above and chosen in particular from D-glucose, D-xylose, N-acetyl-D-glucosamine or L-fucose, and in particular D-xylose; And

- X represents a group chosen from -CO-, -CH(OH)- or -CH(NH ₂ )- and preferably a CH(OH)- group.

The compounds described herein may be in the form of a salt. Acceptable salts of the compounds described in this disclosure include conventional non-toxic salts of said compounds, such as those formed from organic or inorganic acids. Mention may be made, by way of example, of the salts of inorganic acids, such as sulfuric acid or hydrochloric acid. Mention may also be made of the salts of organic acids, which may comprise one or more carboxylic, sulphonic or phosphonic acid groups. Mention may in particular be made of propionic acid, acetic acid, terephthalic acid, citric acid and tartaric acid.

When the compound of formula (I) comprises an acid group, the neutralization of the acid group(s) can be carried out with an inorganic base, such as LiOH, NaOH, KOH, Ca(OH) ₂ , NH4OH, Mg(OH) ₂ or Zn(OH) ₂ , or with an organic base, such as a primary, secondary or tertiary alkylamine. For example, the compound of formula (I) can be neutralized with triethylamine or butylamine. This primary, secondary or tertiary alkylamine may comprise one or more nitrogen and/or oxygen atoms and may comprise, for example, one or more alcohol functional groups. Mention may be made of 2-amino-2-methylpropanol, triethanolamine, 2-(dimethylamino)propanol or 2-amino-2-(hydroxymethyl)-1,3-propanediol. Mention may also be made of lysine or 3-(dimethylamino)propylamine.

Non-limiting examples of solvates which can be used in the cosmetic composition include conventional solvates, such as those formed during the final phase of preparation of said compounds due to the presence of solvents. Mention may be made, by way of example, of the solvates due to the presence of water or of linear or branched alcohols, such as ethanol or isopropanol. Of course, according to the disclosure, a C-glycoside derivative corresponding to formula (I) can be used alone or in a mixture with other C-glycoside derivatives and in any proportion.

A C-glycoside derivative suitable for the invention can in particular be obtained by the synthetic process described in document WO 02/051828, which is incorporated here in its entirety for all useful purposes.

Non-limiting examples of C-glycoside compounds which may be suitable for the cosmetic composition include:

- C-β-D-xylopyranoside-n-propane-2-one,

- C-α-D-xylopyranoside-n-propan-2-one,

- C-β-D-xylopyranoside-2-hydroxypropane,

- C-α-D-xylopyranoside-2-hydroxypropane,

- 1-(C-β-D-fucopyranoside)propan-2-one,

- 1-(C-α-D-fucopyranoside)propan-2-one,

- 1-(C-β-L-fucopyranoside)propan-2-one,

- 1-(C-α-L-fucopyranoside)propan-2-one,

- 1-(C-β-D-fucopyranoside)-2-hydroxypropane,

- 1-(C-α-D-fucopyranoside)-2-hydroxypropane,

- 1-(C-β-L-fucopyranoside)-2-hydroxypropane,

- 1-(C-α-L-fucopyranoside)-2-hydroxypropane,

- 1-(C-β-D-glucopyranosyl)-2-hydroxypropane,

- 1-(C-α-D-glucopyranosyl)-2-hydroxypropane,

- 1-(C-β-D-galactopyranosyl)-2-hydroxypropane,

- 1-(C-α-D-galactopyranosyl)-2-hydroxypropane,

- 1-(C-β-D-fucofuranosyl)propan-2-one,

- 1-(C-α-D-fucofuranosyl)propan-2-one,

- 1-(C-β-L-fucofuranosyl)propan-2-one,

- 1-(C-α-L-fucofuranosyl)propan-2-one,

- C-β-D-maltopyranoside-n-propane-2-one,

- C-α-D-maltopyranoside-n-propan-2-one,

- C-β-D-maltopyranoside-2-hydroxypropane,

- C-α-D-maltopyranoside-2-hydroxypropane, their isomers, and/or mixtures thereof.

The cosmetic composition may preferably include a C-glycoside selected from C-β-D-xylopyranoside-2-hydroxypropane, C-α-D-xylopyranoside-2-hydroxypropane, and a mixture thereof. In some cases, the C-glycoside is C-β-D-xylopyranoside-2-hydroxypropane. According to at least one embodiment, the C-glycoside compound can be C-α-D-xylopyranoside-2-hydroxypropane (or hydroxy-propyltetrahydropyrantriol), which can be supplied as a solution containing 30% by weight of active ingredient in a water/propylene glycol mixture (60/40% by weight).

pH corrector(s)

The cosmetic composition can include one or more pH correctors to increase or decrease the overall pH of the cosmetic composition. For example, one or more acids can be included to lower the pH of the cosmetic composition. Examples of acids suitable for lowering the pH of the cosmetic composition include, but are not limited to, citric acid, acetic acid and others. The cosmetic composition can include one or more bases, such as sodium hydroxide, potassium hydroxide and the like, to lower the pH of the cosmetic composition. Additional or alternative acids and bases suitable for adjusting the pH of the cosmetic composition are readily known to one of ordinary skill in the art.

The amount of pH corrector in the cosmetic composition can be based on the desired pH of the final cosmetic composition and/or of the product. For example, the total quantity of the pH corrector can range from about 0.05 to about 20% by weight, relative to the total weight of the composition. In some cases, the total amount of pH corrector is about 0.05 to about 15% by weight, about 0.5 to about 10% by weight, about 1 to about 5% by weight, d from about 1.5 to about 4% by weight, or from about 2.0 to about 3% by weight, including intermediate ranges and subranges, based on the total weight of the composition.

Miscellaneous components

The compositions described herein may optionally include one or more miscellaneous components. Examples include, but are not limited to, proteins, hydrolyzed proteins, amino acids, humectants and moisturizers, vitamins, fillers, structuring agents, propellants, shine agents, conditioning agents, antioxidants, penetrants, sequestrants, fragrances, buffers, dispersants, ceramides, preservatives, colorants, UV protectants, plant extracts and plasticizers. In some instances, the miscellaneous components are selected from preservatives, fragrances, colorants, UV protectants, antioxidants, vitamins, and mixtures thereof.

The total amount of miscellaneous components in the compositions of this disclosure may vary. In certain cases, the amount of various components is between about 0.01 and about 20% by weight, relative to the total weight of the cosmetic composition. Further, the total amount of miscellaneous components can be between about 0.01 and about 10% by weight, about 0.01 and about 5% by weight, about 0.01 and about 2% by weight, about 0.1 and about 10% by weight, about 0.1 and about 5% by weight, about 0.1 to about 2% by weight, or 10% by weight or less, 8% by weight or less, 6% by weight or less , 5% by weight or less, 4% by weight or less, 2% by weight or less, 1% by weight or less, 0.5% by weight or less, or 0.1% by weight or less, relative to the total weight of the composition.

Methods of use

This disclosure also relates to methods of using the polymer blends and compositions described herein. For example, the cosmetic compositions can be used in a method that includes applying the cosmetic compositions to the skin of humans. In some cases, the composition is applied to the face. Additionally, the cosmetic composition can be used in methods for treating and/or repairing skin damage (eg, damage caused by photoaging), and for diminishing the appearance of wrinkles, dark spots, and blemishes. uneven skin texture. The aforementioned methods may be non-therapeutic.

The cosmetic composition can be applied once a day, twice a day, or more than once or twice a day. In some cases, the composition is applied in the evening before bedtime. In other cases, the composition is applied in the morning. In still other cases, the composition can be applied immediately after washing the skin. The compositions can be used once, or for a series of days, weeks or months. For example, the compositions can be used daily or twice daily for a period of 1, 2, 3, 4, 5, 6, 7, 8 or more weeks, or months.

In some cases, the cosmetic composition of the present disclosure comprises:

(a)(i) 0.1 to 8% by weight, preferably 0.2 to 5% by weight, more preferably 0.2 to 3% by weight of a carbomer;

(a)(ii) 0.1 to 5% by weight, preferably 0.1 to 2% by weight, more preferably 0.1 to 1% by weight of an acrylates/alkyl acrylate crosslinked polymer in C10-30;

(a)(iii) 0.1 to 5 wt%, preferably 0.1 to 2 wt%, more preferably 0.1 to 1 wt% ammonium acryloyldimethyltaurate/ammonium steareth 25;

(b) 60 to 90% by weight water;

(c) optionally, one or more fatty compounds, for example, from 1 to 40% by weight, preferably from 1 to 25% by weight, more preferably from 5 to 20% by weight of one or more fatty compounds , preferably one or more non-silicone fatty compounds;

(d) optionally, one or more emulsifiers, for example 0.1 to 10% by weight, preferably 0.1 to 6% by weight, more preferably 0.1 to 5% by weight of a or more emulsifiers, more preferably one or more emulsifiers chosen from glyceryl esters and derivatives, alkoxylated carboxylic acids (PEG-30 dipolyhydroxystearate), oxyalkylenated fatty acid esters of glycerol, oxyalkylenated fatty acid esters of sorbitan, oxyalkylenated fatty acid esters, oxyalkylenated fatty alkyl ethers, sugar esters (arachidyl glucoside), and mixtures thereof;

(e) 1 to 40% by weight, preferably 1 to 30% by weight, more preferably 5 to 20% by weight of one or more water-soluble solvents, for example, one or more water-soluble solvents. water chosen from a glycol, glycerin, a C1-C4 alcohol, a polyhydric alcohol, and a mixture thereof;

(f) one or more active agents for the skin, more preferably one or more active agents for the skin chosen from anti-ageing agents, depigmenting agents, anti-wrinkle agents, agents treating oily skin, matting agents , antioxidants, vitamins, anti-acne agents, anti-inflammatory agents, and electrolytes, more preferably one or more skin active agents selected from a C-glycoside derivative (hydroxypropyl tetrahydropyrantriol), hyaluronic acid (sodium hyaluronate), salicylic acid (capryloyl salicylic acid), an ester thereof, or a salt thereof;

(g) optionally, one or more thickening agents other than components (a)(i), (a)(ii), and (a)(iii), for example, in an amount of 0.01 to 5, of preferably from 0.01 to 3, more preferably from 0.01 to 2, even more preferably from 0.1 to 5, and even more preferably from 0.1 to 3% by weight, for example a or more erasers;

(h) optionally, one or more miscellaneous ingredients, for example from about 0.01 to about 15% by weight, from about 0.01 to about 10% by weight, from about 0.01 to about 5% by weight, about 0.01 to 2% by weight, about 0.1 to 10% by weight, 0.1 to 5% by weight, or 0.1 to 3% by weight, for example, one or more preservatives, one or more pH correctors (for example, sodium and/or potassium hydroxide), one or more perfumes, one or more salts, one or more colorants and/or dyes, one or more preservatives (for example, chlorphenesin and/or phenoxyethanol);

in which

the composition has a pH of 5 to 9, preferably of 5.5 to 7;

the weight ratio (a)(i) to ((a)(ii)+((a)(iii)) is from 0.5:1 to 2:1, preferably from 0.7:1 to 1.5 :1, more preferably 0.8:1 to 1.2:1, even more preferably about 1:1;

all weight percentages are based on the total weight of the cosmetic composition.

The composition can be in the form of a gel, an emulsion (preferably an oil-in-water emulsion), a cream, a paste or a lotion. Depending on the form of the composition, the viscosity may vary. Nevertheless, in some cases the viscosity is from 5,000 cP to about 100,000 cP at 25°C. In some instances, the viscosity of the cosmetic compositions may be about 5,000 cP to about 80,000 cP, about 5,000 cP to about 50,000 cP, about 5,000 cP to about 25,000 cP, about 5,000 cP to about 10 000 cP, 10,000 cP to about 100,000 cP, about 25,000 cP to about 100,000 cP, about 50,000 to about 100,000 cP, about 75,000 cP to about 100,000 cP, about 10,000 cP to about 90 000 cP, about 25,000 cP to about 75,000 cP, or about 30,000 cP to about 60,000 cP at 25°C.

The composition may be free or substantially free of cross-linked siloxane elastomers. Further, the composition may be free or substantially free of silicones.

The composition may optionally include one or more thickening agents, which are distinct from the carbomer, the acrylates/C10-30 alkyl acrylate cross-linked polymer, and the ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer. For example, the thickening agent can be chosen from acacia, agar, algin, alginic acid, ammonium alginate, amylopectin, calcium alginate, calcium carrageenan, carnitine, carrageenan, dextrin, gelatin, gellan gum, guar gum, hydroxypropyltrimonium guar chloride, hectorite, hyaluronic acid, hydrated silica, hydroxypropyl chitosan, hydroxypropyl guar, gum karaya, kelp, locust bean gum, natto gum, potassium alginate, potassium carrageenan, propylene glycol alginate, sclerotium gum, carboxymethyl dextran from sodium, sodium carrageenan, gum tragacanth, xanthan gum and mixtures thereof.

In some cases, the cosmetic composition of the present disclosure comprises:

(a)(i) 0.1 to 8% by weight, preferably 0.2 to 5% by weight, more preferably 0.2 to 3% by weight of a carbomer;

(a)(ii) 0.1 to 5% by weight, preferably 0.1 to 2% by weight, more preferably 0.1 to 1% by weight of an acrylates/alkyl acrylate crosslinked polymer in C10-30;

(a)(iii) 0.1 to 5 wt%, preferably 0.1 to 2 wt%, more preferably 0.1 to 1 wt% ammonium acryloyldimethyltaurate/ammonium steareth 25;

(b) 50 to 90 wt%, preferably 55 to 85 wt%, more preferably 60 to 80 wt% water;

(c) optionally, one or more fatty compounds, for example, from 1 to 40% by weight, preferably from 1 to 25% by weight, more preferably from 5 to 20% by weight of one or more fatty compounds , preferably one or more non-silicone fatty compounds, more preferably one or more fatty compounds selected from fatty alcohols (eg, arachidyl alcohol, behenyl alcohol, cetearyl alcohol, triglycerides (eg, caprylic/capric triglyceride) , fatty esters (eg, isonyl isononanoate and cetyl ethylhexanoate);

(d) optionally, one or more emulsifiers, for example 0.1 to 10% by weight, preferably 0.1 to 6% by weight, more preferably 0.1 to 5% by weight. % of one or more emulsifiers, more preferably one or more emulsifiers selected from glyceryl esters and derivatives, alkoxylated carboxylic acids (PEG-30 dipolyhydroxystearate), glycerol oxyalkylenated fatty acid esters, fatty acid esters oxyalkylenated sorbitan, oxyalkylenated fatty acid esters, oxyalkylenated fatty alkyl ethers, sugar esters (arachidyl glucoside), and mixtures thereof;

(e) 1 to 40% by weight, preferably 1 to 30% by weight, more preferably 5 to 20% by weight of one or more water-soluble solvents, for example, one or more water-soluble solvents. water selected from glycol, glycerin, C1-C4 alcohol, polyhydric alcohol, and a mixture thereof, more preferably glycerin, propylene glycol, butylene glycol, or a mixture thereof; And

(f) one or more active agents for the skin, more preferably one or more active agents for the skin selected from anti-aging agents, depigmenting agents, anti-wrinkle agents, agents treating oily skin, mattifying agents, antioxidants, vitamins , anti-acne agents, anti-inflammatory agents, and electrolytes, more preferably one or more skin-active agents selected from a C-glycoside derivative (hydroxypropyl tetrahydropyrantriol), hyaluronic acid (sodium hyaluronate), salicylic acid (capryloyl salicylic acid), an ester thereof, or a salt thereof; And

(g) optionally, one or more thickening agents other than components (a)(i), (a)(ii), and (a)(iii), for example, in an amount of 0.01 to 5, of preferably from 0.01 to 3, more preferably from 0.01 to 2, even more preferably from 0.1 to 5, and even more preferably from 0.1 to 3% by weight, for example a or more erasers;

(h) optionally, one or more miscellaneous ingredients, for example from about 0.01 to about 15% by weight, from about 0.01 to about 10% by weight, from about 0.01 to about 5% by weight, about 0.01 to 2% by weight, about 0.1 to 10% by weight, 0.1 to 5% by weight, or 0.1 to 3% by weight, for example, one or more preservatives, one or more pH correctors (for example, sodium and/or potassium hydroxide), one or more preservatives, one or more pH correctors (sodium and/or potassium hydroxide), one or more perfumes, one or more salts, one or more colorants and/or dyes, one or more preservatives (for example, chlorphenesin and/or phenoxyethanol);

in which

the composition has a pH of 5 to 9, preferably of 5.5 to 7;

the weight ratio (a)(i) to ((a)(ii)+((a)(iii)) is from 0.5:1 to 2:1, preferably from 0.7:1 to 1.5 :1, more preferably 0.8:1 to 1.2:1, even more preferably about 1:1;

all weight percentages are based on the total weight of the cosmetic composition.

The composition can be in the form of a gel, an emulsion (preferably an oil-in-water emulsion), a cream, a paste or a lotion. Depending on the form of the composition, the viscosity may vary. Nevertheless, in some cases, the viscosity is between 5,000 cP and about 100,000 cP. In some cases, the viscosity of the cosmetic compositions can be between about 5,000 cP and about 80,000 cP, about 5,000 cP and about 50,000 cP, about 5,000 cP and about 25,000 cP, about 5,000 cP and about 10 000 cP, 10,000 cP and about 100,000 cP, about 25,000 cP to about 100,000 cP, about 50,000 to about 100,000 cP, about 75,000 cP to about 100,000 cP, about 10,000 cP to about 90,000 cP, about 25,000 cP to about 75,000 cP, or about 30,000 cP to about 60,000 cP at 25°C.

The composition may be free or substantially free of cross-linked siloxane elastomers. Further, the composition may be free or substantially free of silicones.

The composition may optionally include a thickening agent, which is separate from the carbomer, the acrylates/C10-30 alkyl acrylate cross-linked polymer, and the ammonium acryloyldimethyltaurate/steareth-25 methacrylate cross-linked polymer. For example, the thickening agent can be chosen from acacia, agar, algin, alginic acid, ammonium alginate, amylopectin, calcium alginate, calcium carrageenan, carnitine, carrageenan, dextrin, getin, gelne gum, guar gum, hydroxypropyltrimonium guar chloride, hectorite, hyaluronic acid, hydrated silica, e hydroxypropyl chitosan, hydroxypropyl guar, karaya gum, kelp, locust bean gum, natto gum, potassium alginate, potassium carrageenan, propylene glycol alginate, sclerotium gum, carboxymethyl dextran gum, sodium carrageenan, gum tragacanth, xanthan gum and mixtures thereof.

Examples

The following examples are provided primarily for the purpose of elucidating the benefits obtained by embodiments of the disclosure. The examples serve to illustrate the technology without necessarily being limiting in nature.

Example 1

Cream for the skin AT
% in weight (have) Rheology modifier and stabilizer polymer blends CARBOMER (poly(ACRYLIC ACID)) ¹ 0.50 (a)(ii) CROSS-LINKED POLYMER ACRYLATES/C10-30 ALKYL ACRYLATE ² 0.23 (a)(iii) CROSS-LINKED POLYMER AMMONIUM ACRYLOYLDIMETHYLTAURATE / METH-25 METHACRYLATE ³ 0.25 (vs) Fatty compounds ARACHIDYLIC ALCOHOL, BEHENYL ALCOHOL, CETEARYL ALCOHOL, CAPRYLIC/CAPRIC TRIGLYCERIDE, ISONONYL ISONONANOATE, AND/OR CETYL ETHYLHEXANOATE 8.13 (d) Emulsifiers/
Surfactants CETEARYL GLUCOSIDE, TRIDECETH-6, PEG-30 DIPOLYHYDROXYSTEARATE, AND/OR ARACHIDYL GLUCOSIDE 0.41 (e) Water Soluble Solvents GLYCERIN, PROPYLENE GLYCOL, AND/OR BUTYLENE GLYCOL 14.25 (g) Active for the skin HYDROXYPROPYL TETRAHYDROPYRANTRIOL ⁴ 3.15 SODIUM HYALURONATE, CAPRYLOYL SALICYLIC ACID (LHA), ADENOSINE, AND/OR TRISODIC ETHYLENEDIAMINE DISUCCINATE 1.00 (g) Thickening agent HYDROXYPROPYL GUAR 0.08 (h) pH corrector SODIUM HYDROXIDE 0.23 Conservative CHLORPHENESIN AND/OR PHENOXYETHANOL 0.80 (b) Water WATER QS100

1. Supplied from SYNTHALEN K produced by (3V)

2. Supplied from CARBOPOL ULTREZ-21 (Lubrizol)

3. Supplied from ARISTOFLEX HMS (Clariant)

4. Supplied from PRO-XYLANE (PX) (L'Oréal) (a sugar-protein hybrid made from xylose)

The term "blend" (eg, in the term "polymer blend") is used throughout this disclosure. This term does not indicate that the components of the mixture must first be combined with each other before being added to a composition. In other words, each component of a "mixture" can be added individually in a composition or each component of a "mixture" can be combined with other components of the "mixture" and then added together in a composition.

The term "INCI" is an abbreviation of International Nomenclature of Cosmetic Ingredients, which is a naming system provided by the International Nomenclature Committee of the Personal Care Products Council to describe personal care ingredients.

As used herein, all ranges provided are intended to include each specific range within the given ranges, as well as any combination of sub-ranges in between. Thus, a range of 1-5 specifically includes 1, 2, 3, 4, and 5, as well as sub-ranges such as 2-5, 3-5, 2-3, 2-4, 1-4, etc.

All components and elements positively presented in this disclosure can be negatively excluded from the claims. In other words, the cosmetic compositions of this disclosure may be free or substantially free of all components and elements positively mentioned in this disclosure.

In some instances, the cosmetic compositions of this disclosure may be substantially free of non-incidental amounts of the ingredient(s) or compound(s) described herein. A non-incidental amount of an ingredient or compound is the amount of that ingredient or compound that is added to the cosmetic composition by itself. For example, a cosmetic composition may be substantially free of a non-incidental amount of an ingredient or compound, although that ingredient or compound may be present as part of a raw material included in a mixture of two or more compounds.

Some of the various component categories identified may overlap. In such cases where an overlap may exist and the composition includes both components (or the composition includes more than two overlapping components), an overlapping compound does not represent more than one component. For example, tocopherol can be characterized as both a skin active agent and a preservative. If a particular composition includes both a skin-active agent and a preservative, the tocopherol will serve only as a skin-active agent or only as a preservative (tocopherol does not simultaneously serve as both a skin-active agent and a preservative ).

All publications and patent applications cited in this specification are hereby incorporated by reference, and for all intents and purposes, as if each individual publication or patent application were specifically and individually indicated as being incorporated by reference. In the event of any inconsistency between this disclosure and any publication or patent application incorporated herein by reference, this disclosure prevails.

In this document, the terms "comprising", "having" and "including" are used in their open and non-limiting sense. In all instances of this disclosure, the term "comprising" may be replaced with "consisting of" or "consisting essentially of" to more closely identify what is included in the mixtures, compositions and methods described herein, i.e. that is, to limit what is included in the mixtures, compositions, and methods of this disclosure to those elements and/or steps specifically cited.

The terms "a", "an", "the" and "the" are understood to include the plural and the singular. Thus, the term "a mixture of" also refers to "mixtures of". Throughout the disclosure, the phrase "a mixture thereof" is used, after a list of elements as shown in the following example where the letters A through F represent the elements: "one or more elements selected from the group consisting of A, B, C, D, E, F, and a mixture thereof”. The phrase "a mixture thereof" does not require that the mixture include all of A, B, C, D, E, and F (although all of A, B, C, D, E, and F may be included). Rather, it indicates that a mixture of two or more of the elements A, B, C, D, E and F may be included. In other words, it is equivalent to the expression "one or more elements chosen from A, B, C, D, E, F, and a mixture of two or more elements from any of A, B, C, D, E and F”.

The term “one or more” means “at least one” and therefore includes individual elements as well as mixtures/combinations.

Outside the working examples, or when otherwise indicated, all figures expressing the quantities of ingredients and/or the reaction conditions can be modified in all cases by the term "approximately", i.e. say to within +/- 5% of the indicated figure.

The term "treating" (and grammatical variations thereof) as used herein with respect to cosmetic compositions refers to the application of the compositions of this disclosure to the surface of keratinous substrates such as the skin or the hair of a user's head and/or body.

The term "substantially free" or "substantially free" as used herein means that less than about 2% by weight of a specific material is added to a composition, based on the total weight of the compositions. However, the compositions may include less than about 1 wt%, less than about 0.5 wt%, less than about 0.1 wt%, or none of the specified material. All components shown herein may be optionally included or excluded from the compositions/methods/kits. When excluded, compositions/methods/kits may be free or substantially free of the component. For example, a particular composition may be free or substantially free of silicones and/or free or substantially free of cross-linked siloxane elastomers.

Claims (10)

Cosmetic composition comprising:
(a) a blend of rheology modifier and stabilizer polymers comprising:
(i) a carbomer;
(ii) an acrylates/C10-30 alkyl acrylate crosslinked polymer; And
(iii) an ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosslinked polymer; And
(b) water. Cosmetic composition according to Claim 1, in which the mixture of polymers comprises:
(i) 25 to 75% by weight, preferably 35 to 60% by weight of a carbomer;
(ii) 5 to 50% by weight, preferably 15 to 30% by weight of an acrylates/C10-30 alkyl acrylate crosslinked polymer; And
(iii) 5 to 50% by weight, preferably 15 to 30% by weight, of ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosslinked polymer;
wherein all weight percentages are based on the total weight of the polymer blend. Cosmetic composition according to Claim 1 or 2, in which the weight ratio (i) to ((ii)+(iii)) is from 0.5:1 to 2:1, preferably from 0.7:1 to 1, 5:1. Cosmetic composition according to one of the preceding claims, comprising 0.1 to 10% by weight, preferably 0.5 to 5% by weight, more preferably 0.5 to 2% by weight of the polymer mixture. Cosmetic composition according to one of the preceding claims, comprising:
(a)(i) 0.1 to 8% by weight, preferably 0.2 to 5% by weight, of the carbomer;
(a)(ii) 0.1 to 5% by weight, preferably 0.1 to 2% by weight, of the acrylates/C10-30 alkyl acrylate crosslinked polymer;
(a)(iii) 0.1 to 5% by weight, preferably 0.1 to 2% by weight, of ammonium acryloyldimethyltaurate/steareth-25 methacrylate crosslinked polymer; And
(b) 60 to 90% by weight water;
wherein all weight percentages are based on the total weight of the cosmetic composition. A composition according to claim 5, wherein the weight ratio (a)(i) to ((a)(ii)+((a)(iii)) is from 0.5:1 to 2:1. Composition according to one of the preceding claims, having a pH of 5 to 9, preferably of 5.5 to 7. Composition according to one of the preceding claims, in the form of a gel. Composition according to one of the preceding claims, comprising:
(c) 1 to 40% by weight, preferably 1 to 25% by weight, more preferably 5 to 20% by weight of one or more fatty compounds; And
(d) 0.1 to 10% by weight, preferably 0.1 to 6% by weight, more preferably 0.1 to 5% by weight of one or more emulsifiers. Process for treating the skin comprising the application of a cosmetic composition according to one of the preceding claims to the skin.