JP2015515500A - Oil-in-water emulsion skin care composition - Google Patents

Abstract

About 3% to about 25% by weight of the composition of hydrocarbon oil or mixture thereof; about 2% to about 15% by weight of the composition of silicone particles or mixture thereof; and about 0.1% by weight of the composition An oil-in-water emulsion skin care composition comprising: about 5% by weight of an emulsifier or mixture thereof, and about 30% to about 90% by weight of the composition of water. The composition provides a favorable skin sensation without significantly affecting the occlusive properties.

Description

  The present invention relates to an oil-in-water emulsion skin care composition. The present invention also relates to a skin care method comprising applying the composition.

  Occlusion agents such as hydrocarbon oils have been used in skin care products to provide high occlusive properties. Such high occlusive properties are desirable because they enhance the penetration of skin care actives contained in skin care products into the skin. Specifically, since the occlusive agent forms a film on the skin, it prevents moisture evaporation from the skin and enhances the absorption of skin care active substances, particularly water-soluble active substances, into the skin.

  However, the formulation of the occlusive agent makes the skin care product unfavorable to the user because it has an unpleasant skin sensation such as greasy and sticky feel. In contrast, users prefer skin care products that provide a favorable skin sensation, such as less fresh feel or draginess after application.

  Various approaches have been used to improve the skin sensation of skin care products. For example, one approach is to add volatile oil. Volatile oils such as low viscosity cyclic silicone oils are commonly used in skin care products to provide a fresh feel when in contact with the skin because they evaporate quickly after application to the skin. However, volatile oil formulations typically reduce the occlusive properties significantly due to the diluting concentration of the occlusive agent, thus reducing the permeability of the skin care active.

  Another approach is to use an oil-in-water emulsion that contains no or only a limited amount of an occlusive agent. Such oil-in-water emulsions typically have a better skin feel than water-in-oil emulsions that contain large amounts of occlusive agent. Nevertheless, on the other hand, if no occlusive agent is incorporated or only a limited amount is incorporated, as described above, the permeability of the skin care active is reduced. On the other hand, increasing the amount of occlusive agent in the oil-in-water emulsion is undesirable because it exacerbates the skin sensation. In conclusion, there is an unmet need for oil-in-water emulsions for current skin care applications to achieve both a favorable skin sensation and sufficient permeability of skin care actives, i.e. high occlusive properties. To do.

  Accordingly, there is a need for an oil-in-water emulsion skin care composition that provides a favorable skin feel without significantly affecting occlusive properties. An object of the present invention is to provide an oil-in-water emulsion skin care composition having a relatively high occlusive property in addition to a favorable skin sensation.

  It has been found that this object can be achieved with the composition according to the invention.

  An advantage of the present invention is that the skin composition method is efficient and requires less time for the user, i.e., without requiring a separate step of applying two or more compositions to the skin in a specific order. It is to provide a method that provides sufficient penetration of the skin care active in one step of applying the object to the skin.

  A further advantage of the present invention is to provide an oil-in-water emulsion skin care composition that is aesthetically appealing to the user.

  The present invention includes about 3% to about 25% by weight of the composition of a hydrocarbon oil or mixture thereof, about 2% to about 15% by weight of the composition of silicone particles or mixture thereof, and about 0% of the composition. An oil-in-water emulsion skin care composition comprising 1% to about 5% by weight of an emulsifier or mixture thereof and about 30% to about 90% by weight of the composition of water.

  Preferably, the present invention provides about 3% to about 25% by weight of the composition of hydrocarbon oil or mixture thereof, about 2% to about 15% of the silicone particles or mixture thereof, and composition. From about 0.1% to about 5% by weight of an emulsifier or mixture thereof, from about 2% to about 15% by weight of silicone oil or a mixture thereof, and from about 30% to about 90% by weight of the composition. % Water and an oil-in-water emulsion skin care composition.

  More preferably, the present invention provides about 5% to about 15% by weight of the composition of hydrocarbon oil or mixture thereof, about 3% to about 10% by weight of the composition of silicone particles or mixture thereof, From about 0.3% to about 1.5% by weight of the product, from about 3% to about 10% by weight of the composition, or from about 30% by weight of the composition; And an oil-in-water emulsion skin care composition comprising about 88% by weight water.

  Even more preferably, the present invention provides from about 7% to about 10% by weight of the composition of a hydrocarbon oil or mixture thereof and from about 3% to about 5% by weight of the composition of silicone particles or mixtures thereof; From about 0.5% to about 1% by weight of the composition of emulsifiers or mixtures thereof, from about 3% to about 5% of silicone oils or mixtures thereof, and from about 50% to about 5% of the composition; The present invention relates to an oil-in-water emulsion skin care composition comprising 85% by weight of water.

  The present invention further relates to a skin care method comprising the step of applying the composition to the skin.

Definition of Terms As used herein, the term “skin care product” means a product used to treat or care for the skin, or in some way moisturize, improve, or cleanse. Skin care products include, but are not limited to, skin moisturizers, skin cleansers, skin treatment emulsions, lotions, skin treatment products, skin exfoliants, shaving creams, skin masks and the like.

  As used herein, the term “skin care composition” means a composition that constitutes a major part of a skin care product. Skin care compositions generally include a skin care active that provides the function of treating, moisturizing, improving, or cleaning the skin.

  As used herein, the term “oil-in-water emulsion” refers to an emulsion in which the oil is a dispersed liquid and the aqueous solution is a continuous phase.

  As used herein, the term “water-in-oil emulsion” refers to an emulsion when water is the dispersed phase in a continuous oil phase.

  As used herein, the term “occlusive” refers to covering the skin with a membrane, thereby preventing moisture evaporation from the skin. The term “occlusive agent” means a material that provides an occlusive function when formulated into a skin care product. An occlusive agent typically has a relatively high occlusive property.

  As used herein, the term “skin sensation” refers to the user's perception of a skin care product how the user feels about the product. In the present invention, a fresh feel and sniffing criterion is used to characterize the skin sensation.

  As used herein, the term “non-volatile” means a substance that exhibits a vapor pressure of 26.7 Pa (0.2 mm Hg) or less at 25 ° C. and 1 atmosphere, and / or a boiling point of at least 300 ° C. at 1 atmosphere. Means a substance having The term “volatile” as used herein refers to all substances that do not fall within the “nonvolatile” defined herein.

  As used herein, an item including “a” and “an” is understood to mean one or more of what is claimed or described when used in the claim.

  As used herein, the terms "comprise, comprising, comprising", "include, includes, including", "contain, contains, containing" are non-limiting. That is, it refers to the ability to add other processes and other components that do not affect the final result. The terms include the terms “consisting of” and “consisting essentially of”.

Skin Care Composition The oil-in-water emulsion skin care composition of the present invention comprises about 3% to about 25% by weight of the composition of a hydrocarbon oil or mixture thereof and about 2% to about 15% by weight of the composition of silicone. Particles or a mixture thereof, from about 0.1% to about 5% by weight of the composition of emulsifier or a mixture thereof, from about 30% to about 90% of water of the composition, optionally further An ingredient or a mixture thereof.

  Preferably, the compositions herein comprise from about 5% to about 15% by weight of the composition of a hydrocarbon oil or mixture thereof and from about 3% to about 10% by weight of the composition of silicone particles or mixtures thereof. About 0.3% to about 1.5% by weight of the composition, or a mixture thereof, about 30% to about 90% water of the composition, and optionally further ingredients or And a mixture thereof. More preferably, the composition comprises from about 7% to about 10% by weight of the composition of a hydrocarbon oil or mixture thereof and from about 3% to about 5% by weight of the composition of silicone particles or mixture thereof; From about 0.5% to about 1% by weight of the composition of an emulsifier or mixture thereof, from about 50% to about 85% by weight of the composition of water, and optionally further components or mixtures thereof; including.

  Preferably, the compositions herein comprise further components or mixtures thereof. In a preferred embodiment, the further ingredients are selected from the group consisting of silicone oils, skin care actives, and mixtures thereof.

  Preferably, the compositions herein include one or more accessory ingredients.

Hydrocarbon Oil The oil-in-water emulsion skin care composition of the present invention comprises a hydrocarbon oil or mixture thereof in an amount of about 3% to about 25% by weight of the composition. Preferably, the hydrocarbon oil is present in the composition in an amount from about 5% to about 15%, more preferably from about 7% to about 10% by weight of the composition.

  Preferred examples of hydrocarbon oils include petrolatum, mineral oil, microcrystalline wax, polyalkene, paraffin, kerosene, ozokerite, polyethylene, perhydrosqualene, polyalphaolefin, hydrogenated polyisobutene, and mixtures thereof. A most preferred example of a hydrocarbon oil is petrolatum (eg, Perfecta® petrolatum, available from Sonneborn, Inc).

  Without being bound by theory, the hydrocarbon oil herein functions as an occlusive agent in the composition. The hydrocarbon oil is solid or semi-solid at normal temperature (25 ° C.). When applied to the skin, the hydrocarbon oil forms a film on the skin and prevents water from evaporating from the skin, thus retaining water on the surface of the skin. Therefore, the dissolved state of the skin care active substance, particularly the water-soluble agent is maintained, and its absorption into the skin is enhanced.

  In addition, oil-in-water emulsions containing a limited amount of occluding agent, for example less than 25% hydrocarbon oil, compared to compositions containing a large amount of occluding agent, for example greater than 50% hydrocarbon oil, In addition to being aesthetically more attractive to the user, typically oil-soluble and water-soluble actives are formulated in the same composition, the greasyness and weight are reduced. The

Silicone Particles The oil-in-water emulsion skin care composition of the present invention comprises silicone particles or mixtures thereof in an amount of about 2% to about 15% by weight of the composition. Preferably, the silicone particles are present in the composition in an amount from about 3% to about 10%, more preferably from about 3% to about 5% by weight of the composition.

  Preferably, the silicone particles suitable for use herein are selected from the group consisting of silicone resin particles, silicone rubber particles, and mixtures thereof. In a preferred embodiment, the silicone particles are selected from the group consisting of spherical silicone resin particles, spherical silicone rubber particles, and mixtures thereof. In another preferred embodiment, the silicone particles are a mixture of silicone resin particles and silicone rubber particles.

  Preferably, the silicone particles herein are silicone resin particles. More preferably, the silicone particles are spherical silicone resin particles. Even more preferably, the silicone particles have an average particle size of about 0.01 μm to about 5 μm, preferably about 0.1 μm to about 4 μm, more preferably about 1 μm to about 3 μm, and even more preferably about 2 μm.

  In a highly preferred embodiment, the silicone particles are polymethylsilsesquioxane (eg, KMP-590, available from Shin-Etsu Chemical).

  In the present invention, Applicant has surprisingly found that the combination of silicone particles and hydrocarbon oil in an oil-in-water emulsion skin care composition is preferred skin below a certain concentration and without significantly affecting occlusive properties. I have found that I can realize my senses. Specifically, such combinations, ie, combinations of about 2% to about 15% silicone particles by weight of the composition and about 3% to about 25% hydrocarbon oil by weight of the composition are preferred. It has been found to achieve a relatively high occlusive property with improved skin sensation, especially fresh feel and reduced sniffing.

Emulsifier The oil-in-water emulsion skin care composition of the present invention comprises an emulsifier or a mixture thereof in an amount of about 0.1% to about 5% by weight of the composition. Preferably, the emulsifier is from about 0.1% to about 2% by weight of the composition, more preferably from about 0.3% to about 1.5%, even more preferably from about 0.5% to about Present in the composition in an amount of 1% by weight. The emulsifier herein generally assists in dispersing and suspending the discontinuous phase into the continuous phase in an oil-in-water emulsion.

  A wide range of conventional emulsifiers are suitable for use herein. Preferred examples of emulsifiers include hydrophobically modified crosslinked polyacrylate polymers and copolymers, polyacrylamide polymers and copolymers, and polyacryloyl dimethyl taurate. More preferred examples of emulsifiers include acrylate / C10-30 alkyl acrylate crosspolymers having the trade names Pemulen ™ TR-1, Pemulen ™ TR-2 (all available from Lubrizol); trade name ACRYSOL ™ An acrylate / steareth-20 methacrylate copolymer having 22 (Rohm and Hass); polyacrylamide having the trade name SEPIGEL 305 (Seppic).

  In a highly preferred embodiment, the emulsifier used herein is from about 0.3% to about 1.5%, preferably from about 0.5% to about 1%, more preferably from about 0.3% by weight of the composition. Is an acrylate / C10-30 alkyl acrylate crosspolymer present in an amount of about 0.5% by weight (eg, Pemulen ™ TR-2, available from Lubrizol).

Silicone oil The oil-in-water emulsion skin care composition of the present invention may comprise silicone oil or a mixture thereof as a further component. Suitable levels of silicone oil herein are from about 2% to about 15%, preferably from about 3% to about 10%, more preferably from about 3% to about 5% by weight of the composition. is there.

  The silicone oil herein may be selected from any silicone oil known in the art. Silicone oils are disclosed in US Pat. No. 4,781,917 (Lubebe et al., Issued November 1, 1988), which is incorporated herein by reference in its entirety. In one embodiment, the silicone oil herein is selected from the group consisting of volatile silicone oils, non-volatile silicone oils, and mixtures thereof.

In a preferred embodiment, the silicone oil herein is a volatile silicone oil. More preferably, the silicone oil herein is selected from the group consisting of linear volatile silicone oils, cyclic volatile silicone oils, and mixtures thereof. Linear volatile silicone oils generally have viscosities less than 5E-6 m ² / s (5 centistokes) at 25 ° C., while cyclic silicone oils are 1E-5 m ² / s (10 centistokes) at 25 ° C. ) Having a viscosity of less than In addition, descriptions of various silicone materials can be found in Todd et al. , “Volatile Silicone Fluids for Cosmetics”, Cosmetics and Toiletries, 91: 27-32 (1976), which is incorporated herein by reference in its entirety.

  In a more preferred embodiment, the silicone oil herein has the following formula:

（式中、ｎは３〜７である）に対応する揮発性シリコーン油；以下の式：
（ＣＨ₃）₃ Ｓｉ−−Ｏ−−［Ｓｉ（ＣＨ₃）₂−Ｏ］_m−−Ｓｉ（ＣＨ₃）₃
（式中、ｍは１〜７である）に対応する直鎖状揮発性シリコーン；及び分枝状揮発性シリコーン、からなる群より選択される。揮発性シリコーン油の好ましい例としては、様々な粘度のシクロメチコン、例えば、Ｄｏｗ Ｃｏｒｎｉｎｇ（登録商標）２００、Ｄｏｗ Ｃｏｒｎｉｎｇ（登録商標）２４４、Ｄｏｗ Ｃｏｒｎｉｎｇ（登録商標）２４５、Ｄｏｗ Ｃｏｒｎｉｎｇ（登録商標）３４４、及びＤｏｗ Ｃｏｒｎｉｎｇ（登録商標）３４５、ＸＩＡＭＥＴＥＲ（登録商標）ＰＭＸ−０２４５（全てＤｏｗ Ｃｏｒｎｉｎｇから入手可能）；ＳＦ−１２０４及びＳＦ−１２０２（全てＭｏｍｅｎｔｉｖｅから入手可能）、ＧＥ ７２０７及び７１５８（全てＧｅｎｅｒａｌ Ｅｌｅｃｔｒｉｃ Ｃｏ．から入手可能）；ＳＷＳ−０３３１４（ＳＷＳ Ｓｉｌｉｃｏｎｅｓから入手可能）；並びにＫＦ−９９５（Ｓｈｉｎ−Ｅｔｓｕ Ｃｈｅｍｉｃａｌから入手可能）が挙げられる。直鎖状揮発性シリコーン油の好ましい例としては、ＫＦ−９６Ａ−１ｃｓ、ＫＦ−９６Ｌ−１．５ｃｓ、ＫＦ−９６Ｌ−２ｃｓ、ＫＦ９６Ａ−５ｃｓ（全てＳｈｉｎ−Ｅｔｓｕ Ｃｈｅｍｉｃａｌより入手可能）が挙げられる。分枝状揮発性シリコーン油の好ましい例としては、ＴＭＦ−１．５（Ｓｈｉｎ−Ｅｔｓｕ Ｃｈｅｍｉｃａｌから入手可能）が挙げられる。シリコーン油の最も好ましい例は、シクロペンタシロキサン（例えば、ＳＦ−１２０２、Ｍｏｍｅｎｔｉｖｅから入手可能）である。

Volatile silicone oil corresponding to (wherein n is 3-7);
_{(CH 3) 3 Si - O} - [Si (CH 3) 2 -O] m --Si (CH 3) 3
Selected from the group consisting of: linear volatile silicones corresponding to (wherein m is 1-7); and branched volatile silicones. Preferred examples of volatile silicone oils include cyclomethicones of various viscosities, such as Dow Corning® 200, Dow Corning® 244, Dow Corning® 245, Dow Corning® 344. , And Dow Corning (R) 345, XIAMETER (R) PMX-0245 (all available from Dow Corning); SF- 1204 and SF- 1202 (all available from Momentive), GE 7207 and 7158 (all General Electric SWS-03314 (available from SWS Silicones); and KF-995 (available from Shin-Etsu Chemical). . Preferable examples of the linear volatile silicone oil include KF-96A-1cs, KF-96L-1.5cs, KF-96L-2cs, KF96A-5cs (all available from Shin-Etsu Chemical). A preferred example of a branched volatile silicone oil is TMF-1.5 (available from Shin-Etsu Chemical). The most preferred example of silicone oil is cyclopentasiloxane (eg, SF-1202, available from Momentive).

  Silicone oils, particularly volatile silicone oils, are used in skin care compositions to provide a fresh feel. However, the formulation of such volatile silicone oils typically significantly reduces occlusive properties, resulting in low permeability of skin care actives. In contrast, applicants have surprisingly found that combining silicone oil with hydrocarbon oil and silicone particles in an oil-in-water emulsion skin care composition is superior at or below a certain concentration without significantly impairing occlusive properties. It was found that the skin sensation was realized. Specifically, such a combination, ie, about 3% to about 25% by weight of the composition of hydrocarbon oil, about 2% to about 15% by weight of the composition of silicone particles, and A combination with about 2 wt% to about 15 wt% silicone oil provides excellent skin feel without significantly impairing occlusive properties, substantially improves the fresh feel and reduces the squeaky feeling I found out.

Skin care actives Skin care actives or mixtures thereof may be present as a further ingredient in the oil-in-water emulsion skin care composition of the present invention and / or applied to the skin prior to application of the composition of the present invention. May be present in certain formulations. In certain embodiments, the skin care active is present in a formulation that is applied to the skin prior to applying the composition of the present invention. In a preferred embodiment, a skin care active is present in the composition of the present invention. Without being bound by theory, it is believed that the composition or a formulation that is applied to the skin prior to application of the composition provides versatility in the formulation of various skin care actives.

  Skin care actives for use herein may be any skin care active that provides skin treatment, moisturizing, improving, or cleaning functions. In one embodiment, the skin care actives herein can be categorized according to the effects they produce or by the expected mechanism of action. However, it should be understood that the skin care actives herein may in some cases provide more than one effect or function through more than one mechanism of action. Accordingly, the classifications herein are done for convenience and are not intended to limit skin care actives to the specific uses listed.

  In a preferred embodiment, the skin care actives herein are selected from the group consisting of vitamin B3 compounds, whitening agents, peptides, sugar amines, skin conditioning agents, sunscreen agents, and mixtures thereof.

Vitamin B ₃ compounds Vitamin B ₃ compounds such as niacinamide are preferred skin care actives for use herein. When used in the composition or in a formulation that is applied to the skin prior to application of the composition, the vitamin B3 compound is about 0.1% to about 30% by weight of the composition or formulation, preferably about 1%. % To about 20% by weight, more preferably about 2% to about 10% by weight.

  As used herein, the term “vitamin B3 compound” refers to the following formula:

（式中、Ｒは、−ＣＯＮＨ₂（すなわち、ナイアシンアミド）、−ＣＯＯＨ（すなわち、ニコチン酸）又は−ＣＨ₂ＯＨ（すなわち、ニコチニルアルコール）；これらの誘導体；及び前述のいずれかの塩である）を有する化合物を意味する。前述のビタミンＢ３化合物の代表的な誘導体としては、非血管拡張性のニコチン酸のエステル（例えば、トコフェリルニコチネート）、ニコチニルアミノ酸、カルボン酸のニコチニルアルコールエステル、ニコチン酸−Ｎ−オキシド、及びナイアシンアミド−Ｎ−オキシドを含むニコチン酸エステルが挙げられる。

Wherein R is —CONH ₂ (ie, niacinamide), —COOH (ie, nicotinic acid) or —CH ₂ OH (ie, nicotinyl alcohol); derivatives thereof; and any of the aforementioned salts A compound having a). Representative derivatives of the aforementioned vitamin B3 compounds include non-vasodilatory esters of nicotinic acid (eg, tocopheryl nicotinate), nicotinyl amino acids, nicotinyl alcohol esters of carboxylic acids, nicotinic acid-N-oxide, And nicotinic acid esters including niacinamide-N-oxide.

Whitening agent A whitening agent may be included in the composition and / or in a formulation that is applied to the skin prior to application of the composition. As used herein, the term “whitening agent” refers to an active ingredient that not only changes the appearance of the skin, but further improves hyperpigmentation compared to before treatment. When used in the composition or in a formulation that is applied to the skin prior to application of the composition, the whitening agent is from about 0.1% to about 10%, preferably from about 0.1% by weight of the composition or formulation. It is present from 2% to about 5% by weight.

  In one embodiment, the whitening agent herein comprises an ascorbic acid compound, azelaic acid, butylhydroxyanisole, gallic acid and its derivatives, hydroquinoin, kojic acid, arbutin, mulberry extract, undecylenoylphenylalanine, cetylpyridinium Selected from the group consisting of chloride, glycyrrhizic acid, tetrahydrocurcumin, and mixtures thereof.

  Preferred examples of whitening agents include the following formula:

（式中、Ｖ及びＷは、独立して、−ＯＨであり、Ｒ¹は、−ＣＨ（ＯＨ）−ＣＨ₂ＯＨ及びこれらの塩類である）を有するアスコルビン酸化合物である。より好ましくは、本明細書におけるアスコルビン酸化合物は、アスコルビン酸塩又はその誘導体であり、例えば、当該技術分野において周知の方法によって調製したナトリウム、カリウム、リチウム、カルシウム、マグネシウム、バリウム、アンモニウム、及びプロタミン塩等が挙げられるが、これらに限定されない、当該技術分野において周知の無毒のアルカリ金属、アルカリ土類金属、及びアンモニウム塩である。

Wherein V and W are independently —OH, and R ¹ is —CH (OH) —CH ₂ OH and salts thereof. More preferably, the ascorbic acid compound herein is ascorbate or a derivative thereof, such as sodium, potassium, lithium, calcium, magnesium, barium, ammonium, and protamine prepared by methods well known in the art. Non-toxic alkali metal, alkaline earth metal, and ammonium salts well known in the art, including but not limited to salts and the like.

Peptides include, but are not limited to, peptide di-, tri-, tetra-, and pentapeptides, and derivatives thereof are applied to the composition and / or to the skin prior to applying the composition. It may be included in the formulation. As used herein, the term “peptide” refers to both natural and synthetic peptides. Also useful herein are naturally derived and commercially available compositions containing peptides.

When used in the composition or in a formulation that is applied to the skin prior to application of the composition, the peptide is present in a safe and effective amount, preferably from about 1 × 10 ⁻⁶ wt% to about It is present at 10% by weight, more preferably from about 1 × 10 ⁻⁶ to about 0.1% by weight, even more preferably from about 1 × 10 ⁻⁵ to about 0.01% by weight.

Sugar amines Sugar amines may be included in the composition and / or in a formulation applied to the skin prior to application of the composition. As used herein, the term “sugar amine” means an amine derivative of hexose.

  Preferable examples of the sugar amine in the present specification include glucosamine, N-acetylglucosamine, mannosamine, N-acetylmannosamine, galactosamine, and N-acetylgalactosamine. A more preferred example of a sugar amine is glucosamine. In addition, a combination of two or more sugar amines may be used.

  When used in the composition or in a formulation that is applied to the skin prior to application of the composition, the sugar amine herein is about 0.001% to about 20% by weight of the composition or formulation, preferably Is present from about 1% to about 10%, more preferably from about 2% to about 5%.

Skin Conditioning Agent A skin conditioning agent may be included in the composition and / or in a formulation that is applied to the skin prior to application of the composition. Preferably, such skin conditioning agents are selected from the group consisting of humectants, exfoliants, emollients, and mixtures thereof.

  The humectant is a polyhydric alcohol for moisturizing, reducing scales, or urging the scaled scales to be removed from the skin. Typical polyhydric alcohols include polyalkylene glycols, more preferably alkylene polyols and derivatives thereof. Preferred examples of the wetting agent include propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1,3-butylene glycol, 1,2,6-hexanetriol, ethoxylated glycerin, Propoxylated glycerin, and mixtures thereof. The most preferred wetting agent is glycerin.

  The exfoliating agent may be selected from the group consisting of C2-C30 alpha-hydroxy carboxylic acids, beta-hydroxy carboxylic acids, salts of these acids, and mixtures thereof. Preferred examples of the exfoliating agent are glycolic acid, lactic acid, and salicylic acid, and ammonium salts thereof.

  The emollient may be selected from the group consisting of hydrocarbons, fatty acids, fatty alcohols, esters, and mixtures thereof.

  When used in the composition or in a formulation that is applied to the skin prior to application of the composition, the skin conditioning agent is about 1% to about 60%, preferably about 2% by weight of the composition or formulation. To about 50% by weight, more preferably from about 5% to about 40% by weight.

Sunscreens Sunscreen agents may be included in the composition and / or in formulations that are applied to the skin prior to application of the composition. As used herein, the term “sunscreen” generally prevents excessive scaling and texture changes of the stratum corneum due to UV exposure.

  A wide range of conventional sunscreens are suitable for use herein. Preferred examples of sunscreens include octyl methoxycinnamate, octyl salicylate, octocrylene, avobenzone, homosalate, octyl triazone, and mixtures thereof. Other conventional sunscreens are also useful herein. Examples of such agents include butyl methoxydibenzoyl-methane, 2-hydroxy-4-methoxybenzo-phenone, 2-phenylbenzimidazole-5-sulfonic acid, octyldimethyl-p-aminobenzoic acid, 2-ethylhexyl. Examples include N, N-dimethyl-p-aminobenzoate, p-aminobenzoic acid, oxybenzone, 4-isopropyldibenzoylmethane, 3-benzylidene camphor, and 3- (4-methylbenzylidene) camphor.

  When used in the composition or in a formulation that is applied to the skin prior to application of the composition, the sunscreen is about 0.1% to about 20%, preferably about 0% by weight of the composition or formulation. Present from about 5% to about 10%, more preferably from about 1% to about 5% by weight. The exact amount will vary depending on the sunscreen selected and the desired sun protection factor (SPF). SPF is a commonly used measure of sunscreen photoprotection against erythema. Federal Register, Vol. 43, no. 166, pp. 38206-38269 (August 25, 1978).

Auxiliary components Various auxiliary components may be incorporated into the composition of the present invention. Preferably, the auxiliary component herein is an active substance for modifying the appearance of skin; an anti-acne active substance; a β-hydroxy acid such as an oil-soluble vitamin compound, terpene alcohol, phytosterol, salicylic acid and its derivatives; Flavonoid compounds; anti-inflammatory agents; anti-cellulite agents; desquamation actives; antioxidants / radical scavengers; tanning actives; panthenoic acid derivatives (including panthenol, dexpantenol, ethyl panthenol), aloe vera, Selected from the group consisting of skin soothing or skin healing actives such as allantoin, bisabolol and dipotassium glycyrrhizinate; antimicrobial or antifungal actives, and mixtures thereof.

Composition Preparation The oil-in-water emulsion skin care compositions of the present invention are generally prepared by conventional methods as are known in the art of skin care composition manufacture. Such methods typically involve mixing the ingredients in one or more steps with or without heating, cooling, application of vacuum, etc. to a relatively uniform state. Non-limiting examples of product forms may be gels, emulsions, lotions, creams, ointments, solutions, liquids and the like.

The compositions herein are:
a) heating the combination of hydrocarbon oil and silicone particles at 70 ° C. to 75 ° C. and then mixing the combination with the emulsifier by applying a shear force of 1000 rpm to 3000 rpm;
b) mixing the combination obtained in step a) with water at 70 ° C. to 75 ° C. by applying a shear force of 1000 rpm to 3000 rpm;
c) The combination obtained in step b) may be prepared by homogenizing with a homogenizer at 8000 rpm to 12000 rpm for 8 to 12 minutes to reduce the particle size of the combination to form an oil-in-water emulsion. ,
In the composition, the hydrocarbon oil is present in an amount from about 3% to about 25% of the composition, and the silicone particles are present in an amount from about 2% to about 15% by weight of the composition. The surfactant is present in an amount from about 0.1% to about 5% by weight of the composition, and the water is present from about 30% to about 90% by weight of the composition.

In a preferred embodiment, the composition herein comprises
a) heating the combination of hydrocarbon oil and silicone particles at 70 ° C. to 75 ° C. and then mixing the combination with the emulsifier by applying a shear force of 1000 rpm to 3000 rpm;
b) mixing the combination obtained in step a) with water at 70 ° C. to 75 ° C. by applying a shear force of 1000 rpm to 3000 rpm;
c) homogenizing the combination obtained in step b) with a homogenizer at 8000 rpm to 12000 rpm for 8 to 12 minutes to reduce the particle size of the combination;
d) When the temperature of the combination obtained in step c) is below 35 ° C., add silicone oil to the combination and mix, then homogenize the mixture with a homogenizer at 8000 rpm to 12000 rpm for 8 to 12 minutes. Forming an oil-in-water emulsion, and
In the composition, the hydrocarbon oil is present in an amount from about 3% to about 25% of the composition, and the silicone particles are present in an amount from about 2% to about 15% by weight of the composition. The surfactant is present in an amount from about 0.1% to about 5% by weight of the composition; the silicone oil is present in an amount from about 2% to about 15% by weight; Present in about 30% to about 90% by weight of the product.

In a more preferred embodiment, the composition herein comprises
a) heating the combination of hydrocarbon oil and silicone particles at 70 ° C. to 75 ° C. and then mixing the combination with the emulsifier by applying a shear force of 1000 rpm to 3000 rpm;
b) mixing the combination obtained in step a) with water at 70 ° C. to 75 ° C. by applying a shear force of 1000 rpm to 3000 rpm;
c) homogenizing the combination obtained in step b) with a homogenizer at 8000 rpm to 12000 rpm for 8 minutes to 12 minutes to reduce the particle size of the combination to form an oil-in-water emulsion;
d) When the temperature of the combination obtained in step c) is below 35 ° C., add silicone oil and vitamin B3 compound to the combination and mix, then mix the mixture with a homogenizer at 8000 rpm to 12000 rpm for 8 minutes to 12 minutes. And homogenizing for a minute to form an oil-in-water emulsion,
In the composition, the hydrocarbon oil is present in an amount from about 3% to about 25% of the composition, and the silicone particles are present in an amount from about 2% to about 15% by weight, The active agent is present in an amount of about 0.1% to about 5% by weight, the silicone oil is present in an amount of about 2% to about 15% by weight, and the vitamin B3 compound is about 1% by weight. The water is present in an amount of from about 30% to about 90% by weight.

Skin Care Method The skin care method of the present invention comprises applying an oil-in-water emulsion skin care composition to the skin, the composition comprising from about 3% to about 25% by weight of the composition of a hydrocarbon oil or mixture thereof. About 2% to about 15% by weight of the composition of silicone particles or mixtures thereof, about 0.1% to about 5% by weight of the composition of emulsifiers or mixtures thereof, and about 30% by weight of the composition About 90% by weight of water and optionally further components or mixtures thereof.

  In one embodiment, the skin care method herein is a multi-step method, eg, a two-step method. As used herein, the term “multi-stage” refers to the need for separate steps in which two or more compositions are applied to the skin in a specific order. Preferably, the skin care method comprises: a) applying a formulation comprising a skin care active substance to the skin; and b) applying the composition of the present invention to the skin. In a more preferred embodiment, the skin care active herein is selected from the group consisting of vitamin B3 compounds, whitening agents, peptides, sugar amines, skin conditioning agents, sunscreen agents, and mixtures thereof.

  In another embodiment, the skin care method herein is a one-step method. As used herein, the term “one step” refers to the application of a single composition to the skin without requiring separate steps to apply two or more compositions to the skin in a specific order. To do. Preferably, the skin care method comprises applying the composition to the skin, the composition comprising from about 3% to about 25% by weight hydrocarbon oil or mixture thereof and from about 2% to about 25% by weight of the composition. 15% by weight of silicone particles or mixtures thereof, about 0.1% to about 5% by weight of the composition or emulsifiers or mixtures thereof, about 30% to about 90% by weight of the composition of water, and skin care activity A substance or a mixture thereof. In a more preferred embodiment, the skin care active is selected from the group consisting of vitamin B3 compounds, whitening agents, peptides, sugar amines, skin conditioning agents, sunscreen agents, and mixtures thereof.

  In the art, multi-stage skin care methods are generally considered to be more effective for penetration of skin care actives into the skin, even though they take longer than single-step methods. Typically, the multi-step method involves applying a first composition comprising a skin care active to the skin and then applying a second composition containing an occlusive agent and having high occlusive properties to the skin. And ensuring sufficient penetration of the skin care active into the skin. However, in the present invention, applicants surprisingly found that from about 3% to about 25% by weight of the composition of hydrocarbon oil or mixtures thereof and from about 2% to about 15% by weight of silicone of the composition. Particles or a mixture thereof, from about 0.1% to about 5% by weight of the composition or an emulsifier or mixture thereof, from about 30% to about 90% water or a mixture thereof, and a skin care active or An oil-in-water emulsion skin care composition comprising a mixture thereof, which provides relatively high occlusive properties, so that the skin care activity contained in the composition without the need for a separate step of applying the other composition It has been found to enhance the penetration of substances into the skin.

Test Method I. Method for Determining the Occlusion of a Skin Care Composition The method uses a standardized stainless steel test chamber in which a collagen film (Naturin COFFI J) is placed as a semipermeable membrane. Fill the cup with calcium chloride (10 g) and coat the material to be tested (0.535 g) on the rough side of the membrane. The test chamber is closed and first placed in a temperature controlled room at 25 ° C./60% RH for 1 hour and then placed in a room at 40 ° C./75% RH for 24 hours. After the test period, the weight of the cup is measured. Also measure the weight of the cup after the chloride is removed. The absorption of water vapor by CaCl ₂ is used for the calculation of the occlusion.

Calculate occlusiveness using the following formula:
Occlusion (%) = 100 − ((total weight of cup−weight of cup not including CaCl ₂ ) −10 (original CaCl ₂ ) × 10.0)

II. Method for Determining Skin Sensation of Skin Care Composition A total of 10 qualified panelists participated in the study. The volunteer's forearm was washed with soap, rinsed thoroughly with water, wiped with a paper towel and dried completely. 0.1 mL of test product and baseline were applied to the forearm. Test product vs. baseline characteristics were evaluated on a double-sided scale (−3 to +3). “0” indicates no difference compared to the control. The result is the average of 10 volunteers who participated in the study.

  “Fresh feel” refers to a non-sticky characteristic and is called a positive characteristic. A positive value for a fresh feel means a fresh feel that is superior to the baseline, the greater the absolute value, the greater the difference from the baseline.

  “Neck feeling” refers to the resistance caused by the product while it is applied to the skin. The negative value of the feeling of catching means that the feeling of catching is superior to the baseline, and that the larger the absolute value, the greater the difference from the baseline.

  The examples described herein are meant to illustrate the invention but are not used to limit or otherwise define the scope of the invention. Examples 1A to 1I are examples according to the present invention, and Examples 2A to 2D are comparative examples.

Examples 1A-1I: Formulation of an oil-in-water emulsion skin care composition The following compositions containing the listed ingredients in the listed proportions (wt%) are made.

ａ Ｐｅｒｆｅｃｔａ（登録商標）ワセリンは、Ｓｏｎｎｅｂｏｒｎ，Ｉｎｃから入手可能である。
ｂ ＫＭＰ−５９０は、Ｓｈｉｎ−Ｅｔｓｕ Ｃｈｅｍｉｃａｌから入手可能なポリメチルシルセスキオキサンである。
ｃ ＳＦ−１２０２は、Ｍｏｍｅｎｔｉｖｅから入手可能なシクロペンタシロキサンである。
ｄ Ｐｅｍｕｌｅｎ（商標）ＴＲ−２は、Ｌｕｂｒｉｚｏｌから入手可能なアクリレート／Ｃ１０〜３０アルキルアクリレートクロスポリマーである。

a Perfecta® Vaseline is available from Sonneborn, Inc.
b KMP-590 is a polymethylsilsesquioxane available from Shin-Etsu Chemical.
c SF- 1202 is cyclopentasiloxane available from Momentive.
d Pemulen ™ TR-2 is an acrylate / C10-30 alkyl acrylate crosspolymer available from Lubrizol.

Preparation of the composition of Example 1A The composition of Example 1A was
a) heating the combination of Perfecta® Vaseline and KMP-590 at 70 ° C. and mixing said combination with Pemulen ™ TR-2 by applying a shear force of 2000 rpm;
b) mixing the combination obtained in step a) with 70 ° C. water by applying a shear force of 2000 rpm;
c) homogenizing the combination obtained in step b) with a TK Robotics homogenizer at 10000 rpm for 10 minutes to reduce the particle size of the combination to form an oil-in-water emulsion composition, and
In the composition, Perfecta® petrolatum is present in an amount of 7.5% by weight of the composition, KMP-590 is present in an amount of 7.5% by weight of the composition, and Pemulen ™ TR-2 is present in an amount of 0.5% by weight of the composition and water is present in an amount of 84.5% by weight of the composition.

Preparation of the composition of Example 1B The composition of Example 1B was
a) heating the combination of Perfecta® Vaseline and KMP-590 at 70 ° C. and mixing said combination with Pemulen ™ TR-2 by applying a shear force of 2000 rpm;
b) mixing the combination obtained in step a) with 70 ° C. water by applying a shear force of 2000 rpm;
c) homogenizing the combination obtained in step b) with a 10,000 rpm TK Robotics homogenizer for 10 minutes to reduce the particle size of the combination;
d) When the temperature of the combination obtained in step c) is below 35 ° C., add niacinamide to the combination and mix, then homogenize the mixture with a TK Robotics homogenizer at 10,000 rpm for 10 minutes in an oil-in-water type Forming an emulsion, and
In the composition, Perfecta® Vaseline is present in an amount of 7.5% by weight of the composition, KMP-590 is present in an amount of 7.5% by weight, and Pemulen® TR- 2 is present in an amount of 0.5% by weight, niacinamide is present in an amount of 5% by weight and water is present in an amount of 79.5% by weight.

Preparation of the composition of Example 1C The composition of Example 1C is the same except that Perfecta® petrolatum is present in an amount of 15% by weight of the composition and water is present in an amount of 77% by weight. And prepared by the same steps as Example 1A.

Preparation of the composition of Example 1D
a) heating the combination of Perfecta® Vaseline and KMP-590 at 70 ° C. and mixing said combination with Pemulen ™ TR-2 by applying a shear force of 2000 rpm;
b) mixing the combination obtained in step a) with 70 ° C. water by applying a shear force of 2000 rpm;
c) homogenizing the combination obtained in step b) with a 10,000 rpm TK Robotics homogenizer for 10 minutes to reduce the particle size of the combination;
d) When the temperature of the combination obtained in step c) is less than 35 ° C., add SF- 1202 to the combination and mix, then homogenize the mixture with a TK Robotics homogenizer at 10,000 rpm for 10 minutes to oil in water Forming a mold emulsion, and
In the composition, Perfecta® Vaseline is present in an amount of 7.5% by weight of the composition, KMP-590 is present in an amount of 3.75% by weight, and Pemulen ™ TR- 2 is present in an amount of 0.5% by weight, SF- 1202 is present in an amount of 3.75% by weight, and water is present in an amount of 84.5% by weight.

Preparation of the composition of Example 1E The composition of Example 1E was
a) heating the combination of Perfecta® Vaseline and KMP-590 at 70 ° C. and mixing said combination with Pemulen ™ TR-2 by applying a shear force of 2000 rpm;
b) mixing the combination obtained in step a) with 70 ° C. water by applying a shear force of 2000 rpm;
c) homogenizing the combination obtained in step b) with a 10,000 rpm TK Robotics homogenizer for 10 minutes to reduce the particle size of the combination;
d) When the temperature of the combination obtained in step c) is less than 35 ° C., SF-1220 and niacinamide are added to the combination and mixed, then the mixture is homogenized with a TK Robotics homogenizer at 10,000 rpm for 10 minutes. And forming an oil-in-water emulsion,
In the composition, Perfecta® Vaseline is present in an amount of 7.5% by weight of the composition, KMP-590 is present in an amount of 3.75% by weight, and Pemulen ™ TR- 2 is present in an amount of 0.5% by weight, SF- 1202 is present in an amount of 3.75% by weight, niacinamide is present in an amount of 5% by weight, and water is 79% of the composition. Present in an amount of .5% by weight.

Preparation of the composition of Example 1F Example 1F is prepared by the same process as Example 1D with the following exception: Perfecta® Vaseline is present in an amount of 20% by weight of the composition and KMP-590. Is present in an amount of 10% by weight, Pemulen ™ TR-2 is present in an amount of 0.5% by weight, SF- 1202 is present in an amount of 10% by weight, and water is 59. Present in an amount of 5% by weight.

Example 1G Composition Preparation Example 1G is prepared by the same process as Example 1D except for the following: Perfecta® Vaseline is present in an amount of 15% by weight of the composition and KMP-590. Is present in an amount of 7.5% by weight, Pemulen ™ TR-2 is present in an amount of 0.5% by weight, SF- 1202 is present in an amount of 7.5% by weight, Is present in an amount of 69.5% by weight.

Example 1H Composition Preparation Example 1H is prepared by the same process as Example 1D except for the following: Perfecta® Vaseline is present in an amount of 15% by weight of the composition and KMP-590. Is present in an amount of 5% by weight, Pemulen ™ TR-2 is present in an amount of 0.5% by weight, SF- 1202 is present in an amount of 5% by weight, and water is 74. Present in an amount of 5% by weight.

Preparation of the composition of Example 1I Example 1I is prepared by the same process as Example 1D except for the following: Perfecta® Vaseline is present in an amount of 5% by weight of the composition and KMP-590. Is present in an amount of 5% by weight, Pemulen ™ TR-2 is present in an amount of 0.5% by weight, SF- 1202 is present in an amount of 5% by weight, Present in an amount of 5% by weight.

Comparative Examples 2A-2D: Comparative Formulation of Oil-in-Water Emulsion Skin Care Compositions The following comparative compositions containing the listed ingredients in the listed ratios (wt%) are made.

ａ Ｐｅｒｆｅｃｔａ（登録商標）ワセリンは、Ｓｏｎｎｅｂｏｒｎ，Ｉｎｃから入手可能である。
ｂ ＫＭＰ−５９０は、Ｓｈｉｎ−Ｅｔｓｕ Ｃｈｅｍｉｃａｌから入手可能なポリメチルシルセスキオキサンである。
ｃ ＳＦ−１２０２は、Ｍｏｍｅｎｔｉｖｅから入手可能なシクロペンタシロキサンである。
ｄ Ｐｅｍｕｌｅｎ（商標）ＴＲ−２は、Ｌｕｂｒｉｚｏｌから入手可能なアクリレート／Ｃ１０〜３０アルキルアクリレートクロスポリマーである。

a Perfecta® Vaseline is available from Sonneborn, Inc.
b KMP-590 is a polymethylsilsesquioxane available from Shin-Etsu Chemical.
c SF- 1202 is cyclopentasiloxane available from Momentive.
d Pemulen ™ TR-2 is an acrylate / C10-30 alkyl acrylate crosspolymer available from Lubrizol.

Preparation of the composition of Comparative Example 2A The composition of Example 2A was
a) heating Perfecta® Vaseline at 70 ° C. and mixing it with Pemulen® TR-2 by applying a shear force of 2000 rpm;
b) mixing the combination obtained in step a) with 70 ° C. water by applying a shear force of 2000 rpm;
c) homogenizing the combination obtained in step b) with a TK Robotics homogenizer at 10000 rpm for 10 minutes to reduce the particle size of the combination to form an oil-in-water emulsion composition, and
In the composition, Perfecta® petrolatum is present in an amount of 10% by weight of the composition, Pemulen® TR-2 is present in an amount of 0.5% by weight, and water is 89%. Present in an amount of .5% by weight.

Preparation of the composition of Comparative Example 2B The composition of Example 2B was
a) heating Perfecta® Vaseline at 70 ° C. and mixing it with Pemulen® TR-2 by applying a shear force of 2000 rpm;
b) mixing the combination obtained in step a) with 70 ° C. water by applying a shear force of 2000 rpm;
c) homogenizing the combination obtained in step b) with a 10,000 rpm TK Robotics homogenizer for 10 minutes to reduce the particle size of the combination;
d) When the temperature of the combination obtained in step c) is less than 35 ° C., add SF- 1202 to the combination and mix, then homogenize the mixture with a TK Robotics homogenizer at 10,000 rpm for 10 minutes to oil in water Forming a mold emulsion, and
In the composition, Perfecta® Vaseline is present in an amount of 7.5% by weight of the composition, Pemulen® TR-2 is present in an amount of 0.5% by weight of the composition, SF- 1202 is present in an amount of 7.5% by weight of the composition and water is present in an amount of 84.5% by weight of the composition.

Preparation of the composition of Comparative Example 2C The composition of Example 2C was
e) heating the combination of Perfecta® Vaseline and KMP-590 at 70 ° C. and then mixing the combination with Pemulen ™ TR-2 by applying a shear force of 2000 rpm;
f) mixing the combination obtained in step a) with 70 ° C. water by applying a shear force of 2000 rpm;
g) homogenizing the combination obtained in step b) with a TK Robotics homogenizer at 10,000 rpm for 10 minutes to reduce the particle size of the combination;
h) When the temperature of the combination obtained in step c) is below 35 ° C., add SF- 1202 to the combination and mix, then homogenize the mixture with a TK Robotics homogenizer at 10,000 rpm for 10 minutes to oil in water Forming a mold emulsion, and
In the composition, Perfecta® petrolatum is present in an amount of 30% by weight of the composition, KMP-590 is present in an amount of 15% by weight of the composition, and Pemulen ™ TR-2 is Present in an amount of 0.5% by weight of the composition, SF- 1202 is present in an amount of 15% by weight of the composition, and water is present in an amount of 39.5% by weight of the composition.

Preparation of the composition of Comparative Example 2D Example 2D is prepared by the same process as Example 2C with the following exception: Perfecta® Vaseline is present in an amount of 2% by weight of the composition and KMP-590 is Present in an amount of 1.5% by weight of the composition, Pemulen ™ TR-2 is present in an amount of 0.5% by weight of the composition, and SF- 1202 is present in an amount of 1.5% by weight of the composition. The water is present in an amount of 94.5% by weight of the composition.

Comparative data for Examples 1 and 2 A comparative experiment is performed to measure the occlusiveness and skin feel of the compositions of Examples 1A, 1C, 1D, 1F-1I, and 2A-2D. The experimental results are shown in Table 3.

  The occlusive property is measured according to the method for determining the occlusive property of the skin care composition described hereinabove. It should be noted that with an occlusive value of only 70%, niacinamide does not penetrate well into the skin.

  Skin sensation is measured according to the method for determining skin sensation of the skin care composition described hereinabove. Example 2A is used as a baseline for obtaining fresh feel and catch feeling data.

  As shown in Table 3, the oil-in-water emulsion skin care composition according to the present invention (Examples 1A, 1C, 1D, 1F, 1G, 1H, and 1I) has a preferable skin sensation without greatly affecting occlusive properties. On the other hand, comparative compositions (Examples 2B, 2C, and 2D) that are outside the scope of the present invention exhibit negative skin sensation or relatively low occlusive properties. Specifically, Example 1A is far more than Example 2B (75.1%), despite the amount of silicone particles in Example 1A being the same as the amount of silicone oil in Example 2B. A high value of occlusiveness (88.2%) is shown. Furthermore, even though Example 2C has a fairly high value of occlusiveness (96.5%), it has a fairly negative skin sensation, ie a low value of fresh feel (−0.2) and a high value of A feeling of catching (0.5) is shown. In contrast, Example 1F has approximately the same occlusive value (95.6%) as Example 2C, plus a positive skin sensation, a fresh feel of a value of 0.3 and -0.4. The feeling of catching the value of. Furthermore, Example 2D shows a fairly low value of occlusiveness (70.5%) and skin sensation close to baseline. In contrast, Example 1I shows an excellent skin sensation, ie a fresh feel with a value of 0.9 and a squeakiness with a value of -1.1, but the occlusive value (78.0%) is It ’s not too low.

  All percentages, ratios and proportions are based on the weight of the total composition unless otherwise indicated. All temperatures are in degrees Celsius (° C.) unless otherwise specified. Unless otherwise specified, all measurements are made at 25 ° C. All concentrations of a component or composition are related to the activity level of that component or composition and exclude impurities that may be present in commercial sources, such as residual solvents or by-products.

  All maximum numerical limits given throughout this specification should be understood to encompass lower numerical limits as if such lower numerical limits were expressly set forth herein. It is. All minimum numerical limits described throughout this specification include all higher numerical limits as if such higher numerical limits were expressly set forth herein. All numerical ranges described throughout this specification are intended to be all narrower within such wider numerical ranges as if such narrower numerical ranges were expressly set forth herein. Includes numerical range.

  The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Rather, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “40 mm” is intended to mean “about 40 mm”.

  All documents cited in this application, including all patents or patent applications that are cross-referenced or related, are hereby incorporated by reference in their entirety, unless expressly stated to be excluded or limited. is there. Citation of any document is not an admission that such document is prior art to all inventions disclosed or claimed in this application, and such document alone or in all other references. And no reference to, teaching, suggestion or disclosure of any such invention in any combination thereof. Further, in this document, the meaning assigned to a term in this document if the scope of any meaning or definition of the term contradicts any meaning or definition of a similar term in a document incorporated by reference. Or it shall conform to the definition.

  While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. Accordingly, it is intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims (19)

An oil-in-water emulsion skin care composition,
From about 3% to about 25% by weight of the composition of a hydrocarbon oil or mixture thereof;
From about 2% to about 15% by weight of the composition of silicone particles or mixtures thereof;
From about 0.1% to about 5% by weight of the composition of an emulsifier or mixture thereof;
From about 30% to about 90% water by weight of the composition;
Optionally, further ingredients or mixtures thereof;
An oil-in-water emulsion skin care composition comprising:   2. The composition of claim 1, comprising from about 5% to about 15% by weight of the composition of the hydrocarbon oil.   The composition of claim 2, comprising from about 7% to about 10% by weight of the composition of the hydrocarbon oil.   The hydrocarbon oil is selected from the group consisting of petrolatum, mineral oil, microcrystalline wax, polyalkene, paraffin, kerosene, ozokerite, polyethylene, perhydrosqualene, polyalphaolefin, hydrogenated polyisobutene, and mixtures thereof. 2. The composition according to 1.   The composition according to claim 4, wherein the hydrocarbon oil is petrolatum.   The composition of claim 1, comprising from about 3% to about 10% by weight of the composition of the silicone particles.   7. The composition of claim 6, comprising from about 3% to about 5% by weight of the composition of the silicone particles.   The composition of claim 1, wherein the silicone particles are selected from the group consisting of silicone resin particles, silicone rubber particles, and mixtures thereof.   The composition of claim 1, wherein the emulsifier is selected from the group consisting of hydrophobically modified crosslinked polyacrylate polymers and copolymers, polyacrylamide polymers and copolymers, polyacryloyl dimethyl taurate, and mixtures thereof.   The composition of claim 1, wherein the additional component is a silicone oil, wherein the silicone oil is present in the composition from about 2 wt% to about 15 wt%.   11. The composition of claim 10, comprising from about 3% to about 10% by weight of the composition of the silicone oil.   12. The composition of claim 11, comprising about 3% to about 5% by weight of the composition of the silicone oil. From about 7% to about 10% by weight of the composition of said hydrocarbon oil or mixture thereof;
About 3% to about 5% by weight of the composition of said silicone particles or mixtures thereof;
About 0.5% to about 1% by weight of the composition of said emulsifier or mixture thereof;
About 3% to about 5% by weight of the composition of silicone oil or mixtures thereof;
About 50% to about 85% water by weight of the composition;
Optionally, further ingredients or mixtures thereof;
The composition of claim 1 comprising:   The composition of claim 1, wherein the further ingredient is a skin care active selected from the group consisting of vitamin B3 compounds, whitening agents, peptides, sugar amines, skin conditioning agents, sunscreens, and mixtures thereof. object.   15. The composition of claim 14, wherein the vitamin B3 compound is selected from the group consisting of niacinamide, niacinamide derivatives, niacinamide or niacinamide derivative salts, and mixtures thereof.   Active substances for modifying the appearance of the skin; anti-acne active substances; oil-soluble vitamin compounds, terpene alcohols, phytosterols, salicylic acid and their derivatives β-hydroxy acids; chelating agents; flavonoid compounds; anti-inflammatory agents; Including desiccant actives; antioxidant / radical scavengers; tanning actives; skin sedative or skin healing actives; antimicrobial or antifungal actives, and adjuncts selected from the group consisting of these The composition of claim 1.   A skin care method comprising applying the composition according to claim 1 to the skin.   A skin care method comprising applying the composition of claim 14 to the skin. A skin care method,
a) applying to the skin a formulation comprising a skin care active selected from the group consisting of vitamin B3 compounds, whitening agents, peptides, sugar amines, skin conditioning agents, sunscreen agents, and mixtures thereof;
b) applying the composition of claim 1 to the skin;
Including methods.