CN116234534A - Cosmetic composition for improving the appearance of skin - Google Patents

Abstract

A cosmetic composition comprising: i) Aluminum starch octenyl succinate; and ii) ingredients of aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate, INCI name.

Description

Cosmetic composition for improving the appearance of skin

Technical Field

The present invention relates to cosmetic compositions for improving the appearance of skin.

Background

The present invention relates to a cosmetic composition for improving the appearance of skin, which improvement is remarkable, preferably immediate. Further, the improvement is preferably durable. Alternatively, the improvement may be readily perceived by the eye and the machine may be used for this purpose.

Wrinkles and fine lines are primarily perceived as dark, non-reflective areas, as light shines and stays there. In contrast, if light is reflected and diffused, wrinkles are less noticeable. Methods have been developed to project light into wrinkles and immediately eliminate dark areas. A substance that produces optical blur is used. This is known as the "soft Focus Effect (soft Focus Effect)", which is described in dr. Emmert in "Quantification of the Soft-Focus Effect", cosmetics and Toiletries, vol.111,57-61 (1996). Soft focus or blurring is a technique that can be used to hide or conceal skin surface imperfections (superficial or surface imperfections). The incident light is distorted by scattering (lens action).

Sometimes the skin secretes more sebum, which can occur on persons of any age. Most people want the skin to have a matt or non-greasy appearance, especially facial skin.

Aging can result in changes in the appearance of the skin. Some are concerned with the appearance of wrinkles, age spots or uneven skin tone.

Our skin is susceptible to deterioration due to skin diseases, environmental factors (such as intense sunlight) and normal aging processes (time aging), and exposure to sunlight may accelerate aging (photoaging). In recent years, the need for cosmetic compositions and cosmetic methods for improving the appearance of skin has grown dramatically. Cosmetic compositions are increasingly sought by consumers to treat, delay or mask the apparent signs of chronological and photoaged skin, such as wrinkles, fine lines, sagging, pigmentation and age spots.

While it is desirable to hide imperfect skin by matte effects, it is also desirable to obtain healthy skin luster. Cosmetic products that are too opaque hide the skin under the lacquer-like coating. Some consider this to be whitening or lightening the skin.

BR 1020100225745 A2 (UNIVSAO palo, 2017) discloses a cosmetic base (base) having a pleasant feel with a dry feel avoiding oily residues. The composition comprises 3 to 10% tapioca starch, 3 to 10% corn starch. It is disclosed that these two starches have a synergistic effect.

US 2020/000721A (medrelease) discloses aqueous compositions comprising a rheology modifier comprising a water-swellable polymer and a co-emulsifier, which is suitable for preparing a cream formulation containing an oil. In one example, the composition comprises PPG-3benzyl ether ethyl hexanoate, glycerin, and a rheology modifier comprising sodium polyacrylate, ethylhexyl cocoate, PPG-3 phenyl ether myristate, a co-emulsifier (such as polysorbate 20), and an antimicrobial agent.

Disclosure of Invention

We have determined that a combination of two cosmetic ingredients, when used in a particular weight ratio, can provide a variety of cosmetic benefits to the skin, including lightening and moisturization.

According to a first aspect, a cosmetic composition is disclosed, comprising:

i) Aluminum starch octenyl succinate (Aluminum Starch Octenylsuccinate); a kind of electronic device with high-pressure air-conditioning system

ii) ingredients named aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate (Aluminum Starch Octenylsuccinate (and) Acrylates Copolymer (and) Magnesium Carbonate);

wherein the weight ratio of the ingredients of the composition, INCI name of aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate composition to the aluminum starch octenyl succinate is from 1:0.5 to 1:5.

According to a second aspect, the use of the cosmetic composition of the first aspect for improving at least one property of the skin is disclosed. Preferably, the at least one property is oil control, moisturization, lightening or pore-hiding (pore-blocking) of the skin.

According to a third aspect, a method of improving at least one property of skin is disclosed, comprising treating the skin with the cosmetic of the first aspect. Preferably, the at least one property is oil control, moisturization, lightening or pore invisibility of the skin.

All other aspects of the invention will become more readily apparent from consideration of the detailed description and examples that follow.

Detailed Description

Definition of the definition

As used herein, "skin" is meant to include the skin of the face, neck, scalp, underarm, chest, back, arms, hands, legs, head, feet, buttocks and abdomen, preferably the skin of the player, neck, face and underarm.

Surface imperfections of the skin mean and include imperfections (age spots, blemishes), pores, fine lines and wrinkles, and furrows (the terms "lines", "wrinkles" and furrows are used interchangeably herein). As used herein, "senile plaque" refers to any hyperpigmentation (including, for example, solar freckles), spots and/or freckles.

The term "treatment" or "treatment" as used herein is intended to encompass within its scope reducing, retarding and/or preventing the above-mentioned skin conditions, and generally improving the quality and appearance and texture of the skin.

As used herein, "cosmetic composition" is meant to include compositions for topical application to mammalian (especially human) skin. Such compositions are generally classified as leave-on or rinse-off, and are preferably leave-on. The composition may be in the form of a liquid, lotion (formulation), cream (stream), foam, scrub (scrub), gel or lotion (tone), or applied with a device or through a mask or pad. Non-limiting examples include leave-on skin lotions, creams, foundations, tanning agents (sunscreens) and sun lotions.

Except in the examples, or where otherwise explicitly indicated, all numbers in this description indicating amounts of material or conditions of reaction, physical properties of materials and/or use are optionally to be understood as modified by the word "about". All amounts are by weight of the final composition unless otherwise indicated. The term "solid" as used herein means that the material is not fluid at 25 ℃. It should be noted that in specifying any range of values, a given upper value may be associated with any lower value. For the avoidance of doubt, the word "comprising" is intended to mean "including" but not necessarily "consisting of … …" or "consisting of … …". In other words, the listed steps or options need not be exhaustive. The disclosure of the invention as found herein is to be considered to cover all embodiments as found in the claims as being multiply dependent upon each other, irrespective of the fact that the claims may be found without multiple dependencies or redundancies.

Where features are disclosed with respect to particular aspects of the invention (e.g., compositions of the invention), such disclosure is also deemed applicable, mutatis mutandis, to any other aspect of the invention (e.g., methods of the invention).

The present invention relates to a cosmetic composition comprising:

i) Aluminum starch octenyl succinate; a kind of electronic device with high-pressure air-conditioning system

ii) ingredients of aluminum (and) acrylate copolymer (and) magnesium carbonate, INCI's name being aluminum starch octenyl succinate;

wherein the weight ratio of the ingredients of the composition, INCI name of aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate composition to the aluminum starch octenyl succinate is from 1:0.5 to 1:5.

INCI standard for International naming of cosmetic ingredients (International Nomenclature of Cosmetic Ingredients). The INCI system was established by the personal care products society of health (Personal Care Products Council) (front CTFA, cosmetic, toiletry and fragrance Association (and Fragrance Association)) in the early seventies of the twentieth century, and the list was maintained by the personal care products society of health. INCI names are used in the united states, the european union, china, japan and many other countries to list ingredients on cosmetic labels. With few exceptions, the INCI label names are the same for all countries.

More detailed information about the INCI name, please access the following websites: http:// webdictionary.personalcarecouncil.org/jsp/home.jsp

Preferably, the composition comprises 0.1 to 5% by weight of the ingredients of the INCI name aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate.

Further preferably, the composition comprises 0.5 to 15 wt.% of the aluminum starch octenyl succinate. In the composition, the INCI name is aluminum starch octenyl succinate (and) acrylate copolymer (and) the weight ratio of the ingredients of the magnesium carbonate composition to the aluminum starch octenyl succinate is 1:0.5 to 1:5.

Aluminum starch octenyl succinate is a chemically modified starch, particularly esterified starch. Such aluminum starch octenyl succinate can be obtained from suppliers such as Akzo Nobel or Nouryon under the name Dry

Pure and Dry->

PC is commercially available. Many other suppliers sell it under their own brand names. Aluminum starch octenyl succinate is used in the formulation of lotions, powders, cosmetics and underarm deodorants in cosmetics and personal care products. It is used as a thickener and binder, an anti-caking agent and an oil absorbent.

The INCI name is aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate compositions available from, for example, nouryon

HFB is obtained. The natural content is 81%, and the proposed applications include moisture resistant products, oil control products, anhydrous products, antiperspirant sticks, sunscreens and dry shampoos, have a variety of effects including oil absorption, syneresis relief and fragrance retention.

The Nouryon component literature discloses that it is a crosslinked starch aluminum octenyl succinate surface treated with an acrylate copolymer and magnesium carbonate.

It has been determined that the cosmetic composition of the present invention can improve at least one property of the skin. Preferably, the at least one property is oil control, moisturization, lightening or pore invisibility of the skin.

Preferably, the cosmetic composition of the present invention comprises a polyacrylate emulsifier or an emulsifier comprising a polyacrylate.

An emulsion is a system of two or more immiscible materials, with one material (the discontinuous or internal phase) suspended or dispersed as individual droplets in the other material (the continuous or external phase). The immiscible phase may be water, oil or silicone.

When preparing emulsions, surfactants called emulsifiers are used to slow down the separation process of the immiscible phases. The proper use of the emulsifier can result in a homogeneous mixture, dispersion or emulsion of the oily or waxy material with water.

Preferably the emulsifier is shear thinning and non-thixotropic. Depending on the type of rheology modifier, a rapid drop in viscosity may result when the formulation is under high shear stress. This effect is known as shear thinning. Thixotropic liquids exhibit a viscosity build over time upon application of shear forces. Once the shear force ceases, the viscosity recovers over time.

Further preferably, the emulsifier is self-emulsifying and comprises a inversion surfactant.

Further preferably, the shear-thinning, non-thixotropic, self-emulsifying rheology modifier is a polyacrylate polymer dispersed in a carrier oil comprising a inversion surfactant.

Preferred emulsifiers are those having the INCI name sodium polyacrylate (and) ethylhexyl cocoate (and) PPG-3benzyl ether myristate (and) Polysorbate20 (Sodium Polyacrylate (and) Ethylhexyl Cocoate (and) PPG-3Benzyl Ether Myristate (and) Polysorbate 20). The emulsifier is Viscotima ^TM SE is commercially available.

ViscOptima ^TM SE is a polyacrylate polymer dispersed in a carrier oil containing a conversion surfactant. When added to water, viscotima SE inverts to form an oil-in-water emulsion, expanding the polyacrylate molecules by osmosis and thus thickening the aqueous phase. Viscotima SE has shear-thinning rheology and is non-thixotropic. This results in a decrease in viscosity when force is applied to the formulation (e.g., during pumping or spraying), and an immediate recovery of viscosity when force is no longer applied.

Preferably and canOptionally, the emulsifier is one or more of the following: sodium polyacrylate (and) isotridecyl isononanoate (and) Trideceth-6 (Sodium Polyacrylate (and) Isotridecyl Isononanoate (and) Trideceth-6) (available from Viscotima) ^TM LV obtained), sodium polyacrylate (and) liquid paraffin (and) Trideceth-6 (Sodium Polyacrylate (and) Paraffinum Liquidum (and) Trideceth-6) (available from Viscotima) ^TM PL), sodium polyacrylate (and) hydrogenated polydecene (and) Trideceth-6 (Sodium Polyacrylate (and) Hydrogenated Polydecene (and) Trideceth-6) (available as rapidhix a-60), sodium polyacrylate (and) dioctyl carbonate (and) Polyglyceryl-3Caprate (Sodium Polyacrylate (and) Dicaprylyl Carbonate (and) Polyglyceryl-3 Caprate) (available as cosmecia ACE), acrylate/acrylamide copolymers and mineral oil and polysorbate 85 (Acrylates/Acrylamide Copolymer and Mineral Oil and Polysorbate 85) (November EC-1) or sodium polyacrylate (available as cosmecia SP).

Cosmetically acceptable carriers and other ingredients

The cosmetic composition of the present invention further comprises a cosmetically acceptable carrier.

In some embodiments, the carrier is an emulsion, preferably a water-in-oil emulsion. Such emulsions are also known as inverse emulsions. Alternatively, the composition comprises a carrier that is an oil-in-water emulsion.

Preferably the oil phase of such emulsions comprises an emollient, preferably a fat, oil, fatty alcohol, fatty acid, soap, silicone oil, synthetic ester and/or hydrocarbon. Many organic sunscreens are also hydrophobic materials and may be used alone or in combination with one or more of the foregoing emollients.

Polysiloxanes (silicones) can be divided into volatile and nonvolatile. The volatile silicone oil, if used, is preferably selected from cyclic (cyclomethicone) or linear polydimethylsiloxanes containing 3 to 9, preferably 4 to 5, silicon atoms. Preferred nonvolatile polysiloxanes are polyalkylsiloxanes, polyalkylarylsiloxanes or polyether siloxane copolymers. Substantially nonvolatile polyalkylsiloxanes useful herein include, for example, polydimethylsiloxanes.

When the cosmetic composition of the present invention comprises an organopolysiloxane crosslinked polymer, the polymer is preferably a dimethicone/vinyl dimethicone crosslinked polymer or a dimethicone crosslinked polymer (available from various suppliers including Dow Corning (9040, 9041, 9045, 9506 and 9509), general Electric (SFE 839), shin Etsu (KSG-15, 16 and 18[ dimethicone/phenyl vinyl dimethicone crosslinked polymer ]) and Grant Industries (Gransil brand materials), and a lauryl dimethicone/vinyl dimethicone crosslinked polymer supplied by Shin Etsu (e.g., KSG-31, KSG-32, KSG-41, KSG-42, KSG-43 and KSG-44)).

When the composition comprises a non-silicone emollient, the emollient is preferably stearyl alcohol, glycerol monoricinoleate, mink oil, cetyl alcohol, isopropyl isostearate, stearic acid, isobutyl palmitate, isocetyl stearate, oleyl alcohol, isopropyl laurate, hexyl laurate, decyl oleate, stearyl-2-ol, isocetyl alcohol, eicosanol, behenyl alcohol, cetyl palmitate, di-n-butyl sebacate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, butyl stearate, polyethylene glycol, triethylene glycol, lanolin, cocoa butter, corn oil, cottonseed oil, olive oil, palm kernel oil, rapeseed oil, safflower seed oil, evening primrose oil, soybean oil, sunflower seed oil, avocado oil, sesame seed oil, coconut oil, peanut oil, castor oil, acetylated lanolin alcohol, petrolatum, mineral oil, butyl myristate, isostearic acid, palmitic acid, isopropyl linoleate, lauryl lactate, myristyl lactate, decyl oleate, myristyl myristate, and mixtures thereof.

Among the ester emollients are alkenyl or alkyl esters of fatty acids having 10 to 20 carbon atoms. Examples thereof include isoamyl pivalate, isodecyl pivalate, isononyl isononanoate, cetyl ricinoleate, oily myristate, oily stearate, and oily oleate; ether-esters, such as fatty acid esters of ethoxylated fatty alcohols; polyhydric alcohol esters, butylene glycol, ethylene glycol mono-and di-fatty acid esters, diethylene glycol mono-and di-fatty acid esters, polyethylene glycol (200-6000) mono-and di-fatty acid esters, propylene glycol mono-and di-fatty acid esters, polypropylene glycol 2000 monooleate, polypropylene glycol 2000 monostearate, ethoxylated propylene glycol monostearate, glycerol mono-and di-fatty acid esters, polyglycerol poly-fatty acid esters, ethoxylated glycerol monostearate, 1, 3-butanediol distearate, polyoxyethylene polyol fatty acid esters, sorbitan fatty acid esters and polyoxyethylene sorbitan fatty acid esters are satisfactory polyhydric alcohol esters. Particularly useful are pentaerythritol, trimethylolpropane and neopentyl glycol esters of C1-30 alcohols. Illustrative are pentaerythritol tetraethyl hexanoate; wax esters such as beeswax, spermaceti and tribehenin; sterol esters, examples of which are cholesterol fatty acid esters; sugar esters of fatty acids, such as sucrose polysorbates and sucrose polysorbates; or a mixture of two or more of the foregoing (a) to (f).

Hydrocarbons which are suitable emollients include petrolatum, mineral oil, C11-C13 isoparaffins, polyalphaolefins, isohexadecane or mixtures thereof.

In a particularly preferred embodiment, the hydrophobic material comprises from 1 to 25% by weight fatty acid or from 0.1 to 80% by weight soap, based on the weight of the composition. Mixtures of fatty acids and soaps are also suitable, for example, vanishing cream bases (vanishing cream base), which give highly appreciated matt feel to the skin. The invention particularly preferably is a C12 to C20 fatty acid, more preferably a C14 to C18 fatty acid. The most preferred fatty acids are stearic acid, palmitic acid or mixtures thereof. The fatty acid in the composition is more preferably present in an amount of 5 to 20% by weight of the composition. Soaps may include alkali metal salts of fatty acids, such as sodium or potassium salts, most preferably potassium stearate. The soap is preferably present in an amount of from 0.1 to 10% by weight, more preferably from 0.5 to 3% by weight of the composition. Typically, the vanishing cream base in skin care compositions is prepared by taking the desired amount of total fatty matter and mixing with the desired amount of potassium hydroxide. Soaps are typically formed in situ during mixing.

Preferably, the cosmetic composition of the present invention comprises 20 to 80% by weight of water, more preferably 40 to 75% by weight of water. This water forms part of the carrier.

In addition to the ingredients already described, it is preferred that the cosmetic composition of the present invention comprises from 0.001 to 5% by weight, more preferably from 0.05 to 4% by weight, of a skin lightening agent. Preferably the skin lightening agent is a vitamin B3 compound or a derivative thereof, such as niacin (niacin), niacin (niacin) or niacinamide. More preferably, the skin lightening agent is niacinamide. Alternatively, the skin lightening agent is at least one of the following: aloe extract, ammonium lactate, anethole derivatives, apple extract, arbutin, azelaic acid, kojic acid, bamboo extract, bearberry extract, bletilla tuber, bupleurum extract, sanguisorba officinalis (burn) extract, butylated hydroxyanisole, butylated hydroxytoluene, citrate esters, ligusticum wallichii, dang-Gui, deoxyarbutin, 1, 3-diphenylpropane derivatives, 2, 5-dihydroxybenzoic acid and derivatives thereof, 2- (4-acetoxyphenyl) -1, 3-dithiane, 2- (4-hydroxyphenyl) -1, 3-dithiane, ellagic acid, escinol, tarragon (estrangole) derivatives, fadeout (Pentapharm), fangfeng, fennel extract, ganoderma lucidum extract, gabben, gatuline Whitening (Gattlefosse), geneistic acid and derivatives thereof, glabridin and derivatives thereof glucopyranosyl 1-ascorbic acid, gluconic acid, glycolic acid, green tea extract, 4-hydroxy-5-methyl-3 [2H ] -furanone, hydroquinone, 4-hydroxyanisole and derivatives thereof, 4-hydroxybenzoic acid derivatives, hydroxyoctanoic acid, inositol ascorbic acid, lemon extract, linoleic acid, magnesium ascorbyl phosphate, melawhite (Pentapharm), mulberry (morus alba) extract, mulberry root extract, 5-octylsalicylic acid, parsley extract, phellinus linteus (phellinus linteus) extract, pyrogallol derivatives, 2, 4-sorbitol derivatives, 3, 5-resorcinol derivatives, rose hip extract, salicylic acid, song-Yi extract, 3,4, 5-trihydroxybenzyl derivatives, tranexamic acid, vitamins such as vitamin B6, vitamin B12, vitamin C and its derivatives, vitamin a, dicarboxylic acids, extracts of plants (madder and symplocos), hydroxycarboxylic acids such as lactic acid and its salts such as sodium lactate, and mixtures thereof.

Further preferably, the cosmetic composition of the present invention comprises one or more organic sunscreens. A wide variety of organic sunscreens are suitable for use in combination with the essential ingredients of the present invention. Suitable UV-A/UV-B sunscreens include 2-hydroxy-4-methoxybenzophenone, octyl dimethyl-p-aminobenzoic acid, digalliyl trioleate (digallinityitrileate), ethyl 4- (bis (hydroxypropyl)) aminobenzoate, 2-ethylhexyl 2-cyano-3, 3-diphenylacrylate, 2-ethylhexyl salicylate, glycerol p-aminobenzoate, 3, 5-trimethylcyclohexanol salicylate, methylparaben, p-dimethylaminobenzoic acid or aminobenzoate, 2-ethylhexyl p-dimethylaminobenzoate, 2-phenylbenzimidazole-5-sulfonic acid, 2- (p-dimethylaminophenyl) -5-sulfobenzoxazolecarboxylic acid, 2-ethylhexyl p-methoxycinnamate, butylmethoxydibenzoylmethane, 2-hydroxy-4-methoxybenzophenone, octyl dimethyl p-aminobenzoate, and mixtures thereof. The most suitable organic sunscreens are 2-ethylhexyl-p-methoxycinnamate, butyl methoxydibenzoylmethane or mixtures thereof.

A safe and effective amount of organic sunscreens may be used in the compositions of the present invention. The composition preferably comprises from 0.1 to 10%, more preferably from 0.1 to 5% of an organic sunscreen.

Other materials that may be included in the cosmetically acceptable carrier include solvents, humectants, thickeners, and powders. Examples of each of these types of materials (which may be used alone or as a mixture) are as follows:

solvents include ethanol, isopropanol, acetone, ethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol monoethyl ether, and mixtures thereof.

Humectants include those of the polyol type. Typical polyols include polyalkylene glycols and more preferably alkylene polyols and derivatives thereof, including propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol and derivatives thereof, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1, 3-butylene glycol, isoprene glycol, 1,2, 6-hexanetriol, glycerol, ethoxylated glycerol, propoxylated glycerol and mixtures thereof. The amount of humectant may be, for example, from 0.5 to 50% by weight, more preferably from 1 to 15% by weight of the composition. Most preferred is glycerol (also known as glycerol). The amount of glycerol may for example be from 0.5 to 50% by weight, more preferably from 1 to 35% by weight and most preferably from 2 to 15% by weight of the composition.

A variety of thickeners may be included in the composition. Illustrative but not limiting are stearic acid, acrylamide/sodium acryloyldimethyl taurate copolymer (Aristoflex AVC), hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, aluminum octenyl succinate starch, polyacrylates (e.g., carbomers, including

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Thickeners, polysaccharides (including xanthan gum, guar gum, pectin, carrageenan and sclerotium gum), celluloses (including carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose and methyl hydroxymethyl cellulose), minerals (including talc, silica, alumina, mica and clays, the latter being represented by bentonite, lepidolite and attapulgite), magnesium aluminum silicate and mixtures thereof. The amount of thickener may be, for example, from 0.05 to 10% by weight, more preferably from 0.3 to 5% by weight of the composition. />

Powders include chalk, talc, fuller's earth, kaolin, starch, gums, colloidal silica-sodium polyacrylate, tetraalkyl and/or trialkylaryl montmorillonite ammonium, chemically modified magnesium aluminum silicate, organically modified montmorillonite clay, hydrated aluminum silicate, fumed silica, carboxyvinyl polymer, sodium carboxymethylcellulose and ethylene glycol monostearate.

The cosmetic compositions of the present invention preferably comprise a non-silica hydrophilic inorganic thickener that swells by intercalation of a polar liquid. Preferably, the composition comprises 0.5 to 10 wt% of the hydrophilic inorganic thickener. The amount will depend on several other factors such as the weight percent of the microspheres and the nature of the cosmetic composition, i.e., the cream or lotion or gel. The term non-silica means that the inorganic thickener is not a thickening silica or any other silica-based thickener. More preferably, the composition of the invention comprises from 0.5 to 5% by weight, most preferably from 0.5 to 3% by weight, of a non-silica hydrophilic inorganic. Preferably, the inorganic thickener is at least one of magnesium aluminum silicate, layered silicate, montmorillonite, lepidolite, bentonite, montmorillonite or layered silicate. More preferably, the inorganic thickener is montmorillonite or magnesium aluminum silicate.

Several grades of magnesium aluminum silicate are commercially available, for example,

series thickeners, e.g. Normal Fast Ultra,/->

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Thickeners of the Ultra and VANATURAL series, e.g.

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The series are of the bentonite type.

Although not required, the magnesium aluminum silicate or montmorillonite may be used in the form of a combination or blend of a thickener with a natural organic gum or natural organic thickener. Examples thereof are

XGB (bentonite and xanthan gum). Other examples include VAN GEL SX (montmorillonite clay and xanthan gum) and VEEGUM CER (montmorillonite clay and cellulose gum). Other such blends may include polyacrylate, carbomer, cellulose, sodium carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, xanthan gum, sodium carrageenan, sodium alginate, hydroxypropyl guar gum, gum arabic (gum arabic/acacia), or gum tragacanth.

Other preferred forms of montmorillonite include sodium magnesium silicate, organically modified montmorillonite including tetraalkyl and/or trialkyl ammonium montmorillonite (organically modified montmorillonite clay), such as quaternary ammonium salt-18 bentonite, quaternary ammonium salt-18 hectorite, sela ammonium bentonite (stearalkonium bentonite) and sela ammonium hectorite (stearalkonium hectorite); and mixtures thereof.

As used herein, "silicone elastomer" refers to a deformable organopolysiloxane having viscoelasticity. Preferably, the cosmetic composition comprises a silicone elastomer.

Preferably the silicone elastomer is crosslinked. The silicone elastomer may be obtained from a curable organopolysiloxane. Examples of this are: an addition reaction-curable organopolysiloxane composition that cures under platinum metal catalysis by an addition reaction between an SiH-containing diorganopolysiloxane and an organopolysiloxane having silicon-bonded vinyl groups; a condensation-cured organopolysiloxane composition that cures by a dehydrogenation reaction between a hydroxyl-terminated diorganopolysiloxane and an SiH-containing diorganopolysiloxane in the presence of an organotin compound; a condensation-cured organopolysiloxane composition that cures in the presence of an organotin compound or titanate by a condensation reaction between a hydroxyl-terminated diorganopolysilane and a hydrolyzable organosilane (examples of such condensation reaction are dehydration reaction, alcohol decomposition reaction, oxime decomposition reaction, amine decomposition reaction, amide decomposition reaction, carboxyl decomposition reaction, and ketone decomposition reaction); a peroxide-cured organopolysiloxane composition that thermally cures in the presence of an organic peroxide catalyst; and organopolysiloxane compositions which are cured by high-energy radiation, for example by gamma rays, ultraviolet rays or electron beams. The silicone elastomer is preferably obtained by addition reaction curing of an organopolysiloxane composition which is cured under platinum metal catalysis by an addition reaction between an SiH-containing diorganopolysilane and an organosilicon silane having silicon-bonded vinyl groups.

The silicone elastomer may be an emulsified or non-emulsified cross-linked silicone elastomer or a combination thereof, but preferably the silicone elastomer is non-emulsified. As used herein, the term "non-emulsifying" defines a crosslinked polysiloxane elastomer in which no polyoxyalkylene units are present. As used herein, the term "emulsified" refers to a crosslinked organopolysiloxane elastomer having at least one polyoxyalkylene (e.g., polyethylene oxide or polypropylene oxide) unit.

Preferred silicone elastomers are organopolysiloxanes obtained under the INCI name dimethicone/vinyl dimethicone crosspolymer, dimethicone crosspolymer and polysiloxane-11. More preferably, the silicone elastomer is a dimethicone/vinyl dimethicone cross polymer.

Preferably, the cosmetic composition of the present invention comprises from 0.1 to 10% by weight, more preferably from 0.5 to 8% by weight, even more preferably from 1 to 5% by weight of silicone elastomer.

The composition of the present invention may comprise from 1 to 25% by weight fatty acid or from 0.1 to 80% by weight soap of the composition. Mixtures of fatty acids and soaps are also suitable, for example, to form a vanishing cream base, giving the skin a matt feel. Particularly preferably C _12-20 Fatty acids, more preferably C _14-18 Fatty acids. The most preferred fatty acids are stearic acid, myristic acid or mixtures thereof. When present, the composition comprises from 5 to 20 wt% fatty acids or soaps. The soap in the hydrophobic material may comprise an alkali metal salt of a fatty acid, such as a sodium or potassium salt, most preferably potassium stearate. Typically, the vanishing cream base in cosmetic compositions is prepared by taking the desired amount of total fatty matter and mixing with the desired amount of potassium hydroxide. Soaps are typically formed in situ during mixing.

Preferably, the composition comprises a whitening pigment. Whitening pigments are typically particles of high refractive index materials. For example, the whitening pigment may have a refractive index of greater than 1.3, more preferably greater than 1.8, and most preferably from 2.0 to 2.7. Examples of such whitening pigments are those comprising bismuth oxychloride, barium sulfate, mica, silica, titania, zirconia, alumina, zinc oxide, or combinations thereof. More preferred whitening pigments are particles comprising titanium dioxide, zinc oxide, zirconium oxide, mica, iron oxide, or a combination thereof. Even more preferred whitening pigments are particles comprising zinc oxide, zirconium oxide, titanium dioxide or combinations thereof, as these materials have a particularly high refractive index. Even more preferably, the whitening pigment is selected from titanium dioxide, zinc oxide, or mixtures thereof, and the most preferred whitening pigment is titanium dioxide.

The average diameter of the whitening pigments is generally from 15nm to 2. Mu.m, more preferably from 35nm to 800nm, even more preferably from 50nm to 500nm, still even more preferably from 100 to 300nm. The diameter of the whitening pigment refers to the diameter of the particles in the unagglomerated state. The diameter refers to the maximum measurable distance on the particle without creating a well-defined sphere. The average diameter may be measured, for example, by Scanning Electron Microscopy (SEM) or Transmission Electron Microscopy (TEM) by averaging values of at least one hundred particles.

Preferably, the composition comprises from 0.001 to 10 wt% of a whitening pigment, more preferably from 0.01 to 6 wt%, still more preferably from 0.1 to 3 wt%, most preferably from 0.2 to 2 wt% of a whitening pigment.

The cosmetic compositions of the present invention may also contain other ingredients commonly used in the art to enhance physical properties and performance. Suitable ingredients include, but are not limited to, binders, colorants and pigments, pH adjusters, preservatives, optical agents, fragrances, viscosity modifiers and biological additives, buffers, conditioning agents, natural extracts, essential oils and skin benefit agents including anti-inflammatory agents, cooling agents, antiperspirant agents, anti-aging agents, anti-acne agents, antimicrobial agents and antioxidants.

The composition may be formulated in any known form. Furthermore, the cosmetic composition of the present invention may be a leave-on or rinse-off composition, and more preferably, the cosmetic composition of the present invention is a leave-on cosmetic. Further preferably, the cosmetic composition of the present invention is a cream, gel-cream or lotion.

The skin care compositions of the present invention are compositions suitable for topical application to human skin, including leave-on and rinse-off products. The term "leave-on" as used with respect to the compositions herein refers to compositions that are applied or rubbed onto the skin and left thereon. The term "rinse-off" as used with respect to the compositions herein refers to a skin cleanser that is applied or rubbed onto the skin and rinsed off substantially immediately after application.

The packaging of the composition of the invention may be a can or tube, and any other form commonly used for cosmetic, cream, washing and lotion products. The composition may be applied topically and preferably 1 to 4 milligrams of the composition per square centimeter of skin.

Use and method

According to a second aspect, the use of the cosmetic composition of the first aspect for improving at least one property of the skin is disclosed. Preferably, the at least one property is oil control, moisturization, skin lightening or skin pore invisibility. Further preferably, at least two of the above properties are improved. More preferably, three of the above characteristics are improved. Further preferably, all four properties are improved.

Oil control

Preferably, the composition provides facial oil control for at least 12 hours after a single application. Sebum is skin oil produced by sebocytes (cells of the sebaceous glands in the skin) and then secreted to the skin surface. "oily skin" is a common and undesirable skin condition due to excessive sebum on the skin. Oily skin is associated with luster, undesirable appearance and unpleasant feel, and affects different age groups. Typically, the degree of oil control is measured by a tool called a Sebumeter and is typically on the forehead of a person.

Moisturizing agent

In another aspect, use of the composition of the first aspect for moisturizing the face for at least 8 hours after a single application is disclosed. Preferably, a Corneometer is used for this analysis. Corneometer CM82OPC (Coura & Khazaha, kohl, germany) is an instrument widely used in the cosmetic industry. It allows high frequency, alternating current piezoelectric measurements of skin capacitance to be made safely by electrodes applied to the skin surface. The measured parameters have been found to vary with skin moisture content. However, they may also vary with many other factors, such as skin temperature, sweat gland activity and composition of any application product. Corneometers can only give directional changes in upper stratum corneum moisture content in an advantageous manner, but even here quantitative interpretation may prove misleading.

Skin-brightening agent

In another aspect, use of the composition of the first aspect for providing facial skin lightening for at least 4 hours and at most 12 hours after a single application is disclosed. Preferably, spectrophotometry Ji Celiang is used to highlight the extent and is expressed in terms of L. Further preferably, on the forehead of the subject.

Pore reduction

In another aspect, use of the composition of the first aspect for reducing visible pores on facial skin for at least 4 hours and at most 12 hours after a single application is disclosed. Preferably, pore stealth is measured as pore stealth on the front, left, and right sides of the subject's face. Using

The light settings are analyzed preferably CP, PP, S1 and S2 illumination modes.

Method

According to another aspect, a method of improving at least one property of skin is disclosed, comprising treating the skin with the cosmetic composition of the first aspect.

Preferably, the at least one property is oil control, moisturization, skin lightening or skin pore invisibility. Preferably at least three properties are improved.

Preferably, in this method, the composition provides facial oil control for at least 12 hours after a single application.

Preferably, in this method, the composition provides facial moisturization for at least 8 hours after a single application.

Preferably, in this method, the composition provides facial skin lightening for at least 4 hours and at most 12 hours after a single application.

Preferably, in this method, the composition reduces visible pores on facial skin for at least 4 hours and at most 12 hours after a single application.

All other preferred features described below in the use of the composition apply mutatis mutandis to this aspect of the invention.

The following examples are provided to facilitate an understanding of the present invention. The examples are not intended to limit the scope of the claims.

Examples

Example 1

For this experiment, a cosmetic cream was formulated. The composition is described in table 1.

TABLE 1

Composition of the components	Weight percent
		Aluminum starch octenyl succinate;	7.2
glycerol	2.4
		Natrasorb HFB	2.4
Cyclopentasiloxane DC 245	2.2
		Dimethyl polysiloxane 350cst	1.6
Betaine (betaine)	0.7
		Viscoptima SE	0.6
Nicotinamide	0.4
		Water and minor ingredients (minors)	100.0

And (3) testing:

the cream was tested with control cream on volunteers aged 18 to 45 years old, oily skin: the normal and dry skin ratio was 50:50 (measured according to a Sebumeter), and the face had visible pores. Volunteers were acclimatized for 10 to 15 minutes at a temperature of 22 ℃ ± 5 ℃ and a relative humidity of 30% ± 10%.

The desired amount of test product is taken at the fingertip. Test products (determined by randomization) were applied at different points on a half-face (split face). The product was spread evenly by circular motion with the aid of four fingers for about 1 minute. Ensuring the uniform smearing of the product.

Dermatological and instrumental evaluations were performed at baseline, 4 hours, 8 hours and 12 hours after a single application of the test product, according to the detailed information provided below.

Oil control-Sebumeter-forehead right and left

moisture-Corneometer-cheek (left and right)

Lightening (L) -spectrophotometer-forehead right and left side

Pore invisible-visual-light settings (CP, PP, S1 and S2 illumination modes) lower front, left and right

The data were statistically analyzed and are shown in table 2.

TABLE 2

The data in table 2 shows that:

note that 4 hours, 8 hours and 12 hours of sebum were significantly reduced compared to baseline, which means that the test product was effective in 12 hours of sebum control. For untreated samples, a significant increase in sebum was observed at 4, 8 and 12 hours compared to baseline. At all time points, sebum was significantly reduced compared to untreated controls, which means that the test product was effective in sebum control 12 hours after product application.

Note that the moisturizing effect was significantly improved at 4 hours compared to baseline. Skin moisturization lasted 8 hours compared to baseline.

Untreated samples had significant deterioration from baseline at 4 hours, 8 hours and 12 hours.

Note that the moisturizing effect was significantly improved at all time points compared to the untreated control, which means that the test product was effective in maintaining moisturizing for 12 hours compared to the untreated control.

In composition 1, it was noted that L was significantly higher at 4 hours, 8 hours and 12 hours compared to baseline. For untreated samples, a significantly lower L was noted at 4 hours compared to baseline. L is significantly higher at all time points compared to untreated controls, which means that the test product is better compared to untreated controls. The test product is effective in providing skin lightening after a single application.

In the case of pore invisibility, it was noted that the average was significantly smaller at 4 hours, 8 hours, and 12 hours compared to baseline, which means that the test product was effective in reducing pore visibility. For the untreated samples, no change in pore visibility was observed at any time point of the study compared to baseline. At all time points, pore visibility was significantly reduced compared to the untreated control group, which means that the test product was effective in making pores invisible within 12 hours after product application.

Claims (14)

1. A cosmetic composition comprising:

i) Aluminum starch octenyl succinate; a kind of electronic device with high-pressure air-conditioning system

ii) ingredients of aluminum (and) acrylate copolymer (and) magnesium carbonate, INCI's name being aluminum starch octenyl succinate;

wherein in the composition, the INCI name is aluminum starch octenyl succinate (and) acrylate copolymer (and) the weight ratio of the ingredients of magnesium carbonate composition to the aluminum starch octenyl succinate is 1:0.5 to 1:5.

2. The cosmetic composition of claim 1, wherein the composition comprises 0.1 to 5 wt% of the ingredient having the INCI name aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate.

3. The cosmetic composition of claim 1 or 2, wherein the composition comprises 0.5 to 15 wt.% of the aluminum starch octenyl succinate.

4. A cosmetic composition according to one of claims 1 to 3, wherein the composition comprises a polyacrylate emulsifier or an emulsifier comprising a polyacrylate.

5. The cosmetic composition of claim 4, wherein the emulsifier is shear thinning and non-thixotropic.

6. The cosmetic composition of claim 5, wherein the emulsifier is self-emulsifying and comprises a conversion surfactant.

7. The cosmetic composition according to any one of claims 4 to 6, wherein the shear-thinning, non-thixotropic, self-emulsifying rheology modifier is a polyacrylate polymer dispersed in a carrier oil containing a conversion surfactant.

8. The cosmetic composition of claim 7, wherein the emulsifier is a substance having the INCI name sodium polyacrylate (and) ethylhexyl cocoate (and) PPG-3benzyl ether myristate (and) polysorbate 20.

9. Use of a cosmetic composition according to one of claims 1 to 8 for improving at least one property of the skin.

10. The use of claim 9, wherein the at least one property is oil control, moisturization, skin lightening, or skin pore invisibility.

11. The use according to claim 10, wherein at least three properties are improved.

12. The use of claim 10 or 11, wherein the composition provides facial oil control for at least 12 hours after a single application.

13. The use of claim 10 or 11, wherein the composition provides facial moisturization for at least 8 hours after a single application.

14. A method of improving at least one property of skin comprising treating skin with a cosmetic composition according to one of claims 1 to 8.