Aqueous cosmetic

Abstract

To provide an aqueous cosmetic that contains a high level of niacinamide but exhibits smooth blending during application, while suppressing stickiness and whitening after application.SOLUTION: An aqueous cosmetic contains niacinamide as a component A, polyhydric alcohol as a component B, nonionic surfactant as a component C, ethanol as a component D, and water as a component E, with the content of the component A being 2.0-8.0 mass%, the content of the component B being 3.0-20.0 mass%, the content of the component C being 0.1-1.0 mass%, the content of the component D being 2.0-30.0 mass%, and the content of the component E being 30.0-92.9 mass%.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an aqueous cosmetic preparation. [Background technology]

[0002] Skin cosmetics containing niacinamide have been known for the purposes of improving wrinkles, preventing blemishes, whitening, etc. (Patent Document 1) [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-247443 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, among the above-mentioned skin cosmetics, in aqueous cosmetics containing a small amount or no oily components, increasing the amount of niacinamide reduces the compatibility of the cosmetics when applied to the skin, or causes a sticky feeling after application (i.e., after the cosmetics are absorbed into the skin). Such skin cosmetics tend to be disliked, particularly by users who have little experience or use skin cosmetics infrequently, which is a problem. Furthermore, after application, the cosmetics tend to precipitate white on the skin, which is the so-called "white cast," which is a problem.

[0005] An object of the present invention is to provide an aqueous cosmetic preparation which contains a high amount of niacinamide, yet has good compatibility when applied, and which is suppressed in terms of stickiness and white cast after application. [Means for solving the problem]

[0006] The present invention provides an aqueous cosmetic preparation containing the following components (A), (B), (C), (D), and (E), in which the content of component (A) is 2.0 to 8.0 mass%, the content of component (B) is 3.0 to 20.0 mass%, the content of component (C) is 0.1 to 1.0 mass%, the content of component (D) is 2.0 to 30.0 mass%, and the content of component (E) is 30.0 to 92.9 mass%. Ingredient (A): Niacinamide Component (B): Polyhydric alcohol Component (C): Nonionic surfactant Component (D): Ethanol Component (E): Water

[0007] The above aqueous cosmetic preparation further contains the following component (F), and the content of component (F) is preferably 0.5 to 15.0% by mass. Ingredient (F): Powder

[0008] The above aqueous cosmetic preparation further contains the following component (G), and the content of component (G) is preferably 0.01 to 2.0% by mass. Component (G): Water-soluble polymer

[0009] The aqueous cosmetic preparation preferably does not contain an oily component, or the content of the oily component is preferably 2.0% by mass or less.

[0010] The aqueous cosmetic preparation is preferably in the form of a liquid or gel. Effect of the Invention

[0011] The aqueous cosmetic of the present invention contains a high amount of niacinamide, yet has good compatibility when applied and suppresses stickiness and white cast after application. "Compatibility when applied" means that the cosmetic penetrates the skin while being applied to the skin and feels as if it has disappeared on the skin. "White cast" means the phenomenon in which the cosmetic precipitates on the skin and appears white after application and drying. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The present invention will be described in detail below.

[0013] The aqueous cosmetic preparation of the present invention contains at least niacinamide, a polyhydric alcohol, a nonionic surfactant, ethanol, and water. The aqueous cosmetic preparation of the present invention preferably contains a powder. The aqueous cosmetic preparation of the present invention preferably contains a water-soluble polymer.

[0014] In this specification, the above "niacinamide" may be referred to as "component (A)", the above "polyhydric alcohol" as "component (B)", the above "nonionic surfactant" as "component (C)", the above "ethanol" as "component (D)", the above "water" as "component (E)", the above "powder" as "component (F)", and the above "water-soluble polymer" as "component (G)".

[0015] The aqueous cosmetic preparation of the present invention contains component (A), component (B), component (C), component (D), and component (E). The aqueous cosmetic preparation of the present invention preferably contains component (F). The aqueous cosmetic preparation of the present invention preferably contains component (G). The aqueous cosmetic preparation of the present invention may contain components (other components) other than the above components (A) to (G). Furthermore, each of the components contained in the aqueous cosmetic preparation of the present invention (for example, components (A) to (G) and other components) may be used alone or in combination of two or more.

[0016] [Ingredient (A): Niacinamide] Component (A) is niacinamide (nicotinic acid amide). Component (A) is, for example, a compound whose INCI name is "Niacinamide". Component (A) is an active ingredient for improving wrinkles, preventing spots, whitening, etc. Component (A) may be used alone or in combination of two or more kinds.

[0017] The content of component (A) in the aqueous cosmetic of the present invention is 2.0% by mass or more, preferably 3.0% by mass or more, and 8.0% by mass or less, preferably 6.0% by mass or less, based on 100% by mass of the aqueous cosmetic of the present invention. When the content is 2.0% by mass or more, the effects of wrinkle improvement, blemish prevention, and whitening can be fully exhibited. When the content is 8.0% by mass or less, the blending during application can be good, and stickiness and whitening after application can be suppressed. The content of component (A) is the total content of all components (A) in the aqueous cosmetic of the present invention.

[0018] [Component (B): Polyhydric alcohol] Component (B) is a polyhydric alcohol. Component (B) exerts the effect of suppressing stickiness and white cast after application. Examples of component (B) include glycols such as ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, 1,3-butylene glycol, 1,2-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, and 1,2-decanediol; glycerins such as glycerin, diglycerin, and polyglycerin; and sugar alcohols such as xylitol, trehalose, maltitol, mannitol, sorbitol, erythritol (erythritol), arabitol, ribitol, galactitol, and glucitol. Among them, from the viewpoint of further suppressing stickiness and white cast after application, it is preferable that component (B) contains a polyhydric alcohol (at least one polyhydric alcohol) selected from the group consisting of glycerin, 1,3-butylene glycol, propylene glycol, and dipropylene glycol. In this specification, the above-mentioned "polyhydric alcohol selected from the group consisting of glycerin, 1,3-butylene glycol, propylene glycol, and dipropylene glycol" may be referred to as "component (B1)". In other words, it is preferable that component (B) contains component (B1). Only one type of component (B) and component (B1) may be used, or two or more types may be used.

[0019] The content of component (B) in the aqueous cosmetic of the present invention is 3.0% by mass or more, preferably 5.0% by mass or more, and 20.0% by mass or less, preferably 15.0% by mass or less, based on 100% by mass of the aqueous cosmetic of the present invention. The content of 3.0% by mass or more sufficiently suppresses stickiness and white cast after application. The content of 20.0% by mass or less sufficiently suppresses stickiness after application. The content of component (B) is the total content of all components (B) in the aqueous cosmetic of the present invention.

[0020] The content of component (B1) in the aqueous cosmetic of the present invention is not particularly limited, but is preferably 3.0% by mass or more, more preferably 5.0% by mass or more, based on 100% by mass of the aqueous cosmetic of the present invention, from the viewpoint of further suppressing stickiness and white cast after application, and is 20.0% by mass or less, preferably 15.0% by mass or less, from the viewpoint of suppressing stickiness after application. The content of component (B1) is the total content of all components (B1) in the aqueous cosmetic of the present invention.

[0021] [Component (C): Nonionic surfactant] Component (C) is a nonionic surfactant. Component (C) exerts the effect of suppressing white cast after application. Examples of component (C) include sorbitan fatty acid esters, glycerin fatty acid esters, and their alkylene oxide adducts, polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene alkylphenols, polyoxyethylene sorbit fatty acid esters, polyoxyethylene alkylphenyl formaldehyde condensates, polyoxyethylene sterols and derivatives thereof, polyoxyethylene lanolin and derivatives thereof, alkyl glucosides, polyoxyethylene beeswax derivatives, sugar esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene castor oil, etc. Among the above, polyoxyethylene hydrogenated castor oil and polyoxyalkylene alkyl ethers are preferred. Component (C) may be used alone or in combination of two or more.

[0022] The average number of moles of oxyethylene (ethylene oxide: EO) added in the polyoxyethylene hydrogenated castor oil is preferably 5-120, more preferably 20-100, and even more preferably 40-60.

[0023] Examples of the polyoxyalkylene alkyl ether include polyoxyethylene polyoxypropylene decyl tetradecyl ether, etc. Examples of the polyoxyethylene polyoxypropylene decyl tetradecyl ether include PPG-6 decyl tetradeceth-20 and PPG-6 decyl tetradeceth-30.

[0024] Examples of the monoglycerin fatty acid esters include glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl distearate, glyceryl monoisostearate, glyceryl diisostearate, glyceryl monohydroxystearate, glyceryl monooleate, glyceryl monobehenate, and glyceryl dibehenate.

[0025] Examples of the polyglycerol fatty acid ester include polyglycerol fatty acid monoesters such as diglyceryl monostearate, diglyceryl monooleate, diglyceryl monoisostearate, tetraglyceryl monostearate, tetraglyceryl monooleate, hexaglyceryl monolaurate, hexaglyceryl monomyristate, hexaglyceryl monostearate, hexaglyceryl monooleate, decaglyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monostearate, and decaglyceryl monooleate. polyglycerol fatty acid diesters such as diglyceryl dioleate, decaglyceryl distearate, and decaglyceryl diisostearate; polyglycerol fatty acid triesters such as tetraglyceryl tristearate, hexaglyceryl tristearate, decaglyceryl trioleate, and polyglycerol fatty acid pentaesters such as tetraglyceryl pentastearate, tetraglyceryl pentaoleate, hexaglyceryl pentastearate, and hexaglyceryl pentaoleate.

[0026] The average polymerization degree of polyglycerin in the polyglycerin fatty acid ester is preferably 2 to 10 from the viewpoint of enhancing emulsion stability.

[0027] From the viewpoint of enhancing emulsion stability, the fatty acid in the polyglycerol fatty acid ester is preferably a fatty acid having 8 to 24 carbon atoms, more preferably a fatty acid having 10 to 20 carbon atoms, and even more preferably a fatty acid having 12 to 18 carbon atoms.

[0028] Examples of the sorbitan fatty acid ester include sorbitan monocaprate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan distearate, sorbitan sesquistearate, sorbitan tristearate, sorbitan trioleate, sorbitan monoisostearate, sorbitan sesquiisostearate, sorbitan monooleate, sorbitan sesquioleate, and coconut oil fatty acid sorbitan.

[0029] Examples of the polyoxyethylene fatty acid ester include polyethylene glycol monolaurate, polyethylene glycol monopalmitate, polyethylene glycol monostearate, polyethylene glycol monoisostearate, polyethylene glycol distearate, polyethylene glycol monooleate, and polyethylene glycol dioleate.

[0030] Examples of the polyoxyethylene glycerin fatty acid ester include polyoxyethylene (caprylic / capric acid) glyceryl, polyoxyethylene coconut oil fatty acid glycerin, polyoxyethylene glyceryl monooleate, polyoxyethylene glyceryl monomyristate, polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monoisostearate, polyoxyethylene glyceryl triisostearate, etc. The average number of moles of oxyethylene added is not particularly limited, but is preferably 2 to 100, more preferably 4 to 90, from the viewpoint of enhancing emulsion stability.

[0031] Examples of the polyoxyethylene sorbitan fatty acid ester include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan oleate, polyoxyethylene sorbitan trioleate, etc. The average number of moles of oxyethylene added is not particularly limited, but is preferably 5 to 50, more preferably 10 to 30, from the viewpoint of enhancing emulsion stability.

[0032] The content of component (C) in the aqueous cosmetic of the present invention is 0.1% by mass or more, preferably 0.2% by mass or more, and 1.0% by mass or less, preferably 0.8% by mass or less, based on 100% by mass of the aqueous cosmetic of the present invention. The content of 0.1% by mass or more suppresses white cast after application. The content of 1.0% by mass or less suppresses stickiness due to component (C), and suppresses stickiness after application. The content of component (C) is the total content of all components (C) in the aqueous cosmetic of the present invention.

[0033] [Component (D): Ethanol] Component (D) is ethanol. Component (D) exerts an effect of improving the compatibility of the aqueous cosmetic preparation with the skin when applied. The content of component (D) in the aqueous cosmetic preparation of the present invention is 2.0% by mass or more, preferably 3.0% by mass or more, and 30.0% by mass or less, preferably 25.0% by mass or less, based on 100% by mass of the aqueous cosmetic preparation of the present invention. When the content is 2.0% by mass or more, compatibility at the time of application is good. When the content is 30.0% by mass or less, the sticky feeling caused by component (A) when drying can be suppressed. The content of component (D) is the total content of all components (D) in the aqueous cosmetic preparation of the present invention.

[0034] [Component (E): Water] Component (E) is water. Component (E) is preferably purified water. Component (E) is a medium for the aqueous cosmetic of the present invention. The content of component (E) in the aqueous cosmetic of the present invention is 30.0% by mass or more, preferably 40.0% by mass or more, and 92.9% by mass or less, preferably 80.0% by mass or less, based on 100% by mass of the aqueous cosmetic of the present invention. The content of component (E) is the total content of all components (E) in the aqueous cosmetic of the present invention.

[0035] [Component (F): Powder] Component (F) is a powder. Component (F) exerts an effect of suppressing a sticky feeling. Component (F) may be used alone or in combination of two or more kinds.

[0036] Component (F) may be an inorganic powder or an organic powder, and examples of component (F) include silicone elastomer particles, silica (anhydrous silicic acid), metal salt of starch octenyl succinate, nylon, talc, polymethyl methacrylate (PMMA), mica, calcium phosphate, polystyrene, charcoal, crystalline cellulose, cellulose particles, calcium carbonate, etc.

[0037] Examples of the silicone elastomer particles include polymethylsilsesquioxane, crosslinked methylpolysiloxane, dimethicone crosspolymer, vinyl dimethicone crosspolymer, dimethicone / vinyl dimethicone crosspolymer, (vinyl dimethicone / methicone silsesquioxane) crosspolymer, and dimethicone crosspolymer-3. Among them, polymethylsilsesquioxane and (vinyl dimethicone / methicone silsesquioxane) crosspolymer are preferred. The polymethylsilsesquioxane is also called methylsiloxane network polymer, and is written as POLYMETHYLSILSESQUIOXANE in the INCI name. The (vinyl dimethicone / methicone silsesquioxane) crosspolymer is also called crosslinked silicone / network silicone block copolymer, and is written as Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer in the INCI name.

[0038] The silica (anhydrous silicic acid) may be hydrophilic silica or hydrophobic silica. The hydrophilic silica is silica that has not been subjected to hydrophobic treatment, and is usually general silica. The hydrophilic silica is, for example, silica (anhydrous silicic acid) whose surface is still composed of silanol groups and siloxane groups, and is silica that has not been subjected to hydrophobic treatment as described below. The hydrophobic silica is silica obtained by subjecting hydrophilic silica to hydrophobic treatment. Examples of the treating agent used in the hydrophobic treatment include organic silyl compounds such as methyltrichlorosilane, dimethyldichlorosilane, trimethylchlorosilane, hexamethyldisilazane, methyltrialkoxysilane, dimethyldialkoxysilane, trimethylalkoxysilane, ethyltrichlorosilane, propyltrichlorosilane, hexyltrichlorosilane, long-chain alkyltrichlorosilane, ethyltrialkoxysilane, propyltrialkoxysilane, hexyltrialkoxysilane, long-chain alkyltrialkoxysilane, methacrylsilane, fluoroalkylsilane, and perfluoroalkylsilane; silicone compounds such as dimethylpolysiloxane (silicone oil), methylphenylpolysiloxane, methylhydrogenpolysiloxane, and amino-modified silicone. The hydrophobic treatment method can be carried out using a known method, and examples thereof include a liquid phase method, a gas phase method, and an autoclave method. Specific examples of the hydrophobic silica include dimethylsiloxylated silica, trimethylsiloxylated silica, octylsiloxylated silica, silicone oil-treated silica, methacrylsiloxylated silica, and methylhydrogenpolysiloxane-coated silica.

[0039] The above-mentioned metal salt of starch octenyl succinate includes aluminum salt, calcium salt, barium salt, iron salt, etc. of starch octenyl succinate. Among them, aluminum salt (aluminum starch octenyl succinate) is preferred. The above-mentioned aluminum starch octenyl succinate may be written as starch Al octenyl succinate or corn starch aluminum octenyl succinate. The above-mentioned aluminum starch octenyl succinate may be written as ALUMINUM STARCH OCTENYLSUCCINATE by INCI name.

[0040] The nylon is not particularly limited, and examples thereof include nylon-6 (INCI name: NYLON-6) and nylon-12 (INCI name: NYLON-12). The talc is not particularly limited, and talc generally used in cosmetic compositions can be used. The polymethyl methacrylate is expressed as POLYMETHYL METHAC RYLATE in the INCI name. Examples of the mica include sericite and titanium mica in which the surface of the mica is coated with titanium oxide. Examples of the calcium phosphate include calcium monophosphate, calcium diphosphate, and tricalcium phosphate. Examples of the charcoal include activated charcoal (medicinal charcoal). The raw material of the activated charcoal is not particularly limited, and those generally used as raw materials for activated charcoal can be used. Specific examples of the raw materials include coconut shells, wood, sawdust, coal, phenolic resin, rayon, acrylonitrile, coal pitch, and petroleum pitch. Among them, coconut shells, wood, phenolic resin, and coal are preferable.

[0041] The content of component (F) in the aqueous cosmetic of the present invention is preferably 0.5% by mass or more, more preferably 1.0% by mass or more, and even more preferably 2.0% by mass or more, based on 100% by mass of the aqueous cosmetic of the present invention, from the viewpoint of suppressing stickiness, and is preferably 15.0% by mass or less, more preferably 10.0% by mass or less, from the viewpoint of suppressing dryness and maintaining a moisturizing feeling. The content of component (F) is the total content of all components (F) in the aqueous cosmetic of the present invention.

[0042] [Component (G): Water-soluble polymer] Component (G) is a water-soluble polymer. Component (G) is a so-called thickener, and exerts the effect of adjusting the viscosity of the aqueous cosmetic preparation and the effect of improving the formulation stability of the aqueous cosmetic preparation. Furthermore, it improves the effect of suppressing stickiness after application. By thickening the aqueous cosmetic preparation with component (G), the aqueous cosmetic preparation can be made into, for example, a viscous liquid or gel formulation. Examples of component (G) include acrylic water-soluble polymers, gelatin, xanthan gum, guar gum, carrageenan, pectin, locust bean gum, alginate, methylcellulose, ethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose. Only one type of component (G) may be used, or two or more types may be used.

[0043] Among the above, the component (G) is preferably an acrylic water-soluble polymer (water-soluble acrylic polymer). In the present specification, the above-mentioned "acrylic water-soluble polymer" may be referred to as "component (G1)". That is, the component (G) preferably contains the component (G1). Examples of the component (G1) include carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, alkyl acrylate copolymer, (acrylates / steareth-20 methacrylate) copolymer, (acrylates / steareth-20 methacrylate) crosspolymer, (acrylates / beheneth-25 methacrylate) copolymer, (acrylates / vinyl neodecanoate) crosspolymer, (sodium acrylate / sodium acryloyldimethyltaurate) copolymer, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, and the like. The component (G1) may be used alone or in combination of two or more kinds.

[0044] Examples of component (G1) include the following components (G11) and (G12). Of these, from the viewpoint of imparting a fresh, gel-like formulation to the cosmetic preparation, it is preferable to contain the following component (G12). It is preferable that component (G1) contains component (G12). Component (G11): Polymer containing a structural unit derived from acryloyldimethyltaurate Component (G12): at least one polymer selected from the group consisting of a polymer containing at least a structural unit derived from (meth)acrylic acid and / or a (meth)acrylic acid alkyl ester and a structural unit derived from a polyoxyethylene alkyl ether (meth)acrylate (hereinafter, may be referred to as "polymer (G12a)"), a carboxyvinyl polymer (hereinafter, may be referred to as "polymer (G12b)"), and an alkyl-modified carboxyvinyl polymer (hereinafter, may be referred to as "polymer (G12c)").

[0045] The component (G11) is a polymer containing at least a structural unit derived from an acryloyldimethyltaurate. The acryloyldimethyltaurate may be sodium acryloyldimethyltaurate. The component (G11) may contain a structural unit derived from a monomer component other than an acryloyldimethyltaurate. Examples of the monomer component other than an acryloyldimethyltaurate include (meth)acrylic acid such as acrylic acid; (meth)acrylic acid salts such as sodium acrylate; hydroxyl group-containing acrylic monomers such as hydroxyethyl acrylate; and amide group-containing acrylic monomers such as acrylic acid amide.

[0046] Examples of the component (G11) include copolymers of acrylate and acryloyldimethyl taurate, copolymers of hydroxyethyl acrylate and acryloyldimethyl taurate, and copolymers of acrylic acid, acrylate, acrylamide, and acryloyldimethyl taurate. As the component (G11), a compound represented by the INCI name "Sodium Acrylate / Sodium Acryloyldimethyl Taurate Copolymer"; a compound represented by the INCI name "Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer" and the like are preferred. Among the above, (Sodium Acrylate / Sodium Acryloyldimethyl Taurate) copolymer is preferred.

[0047] As the component (G11), a commercially available product can be used. Examples of the commercially available product include "SIMULGEL EG", "SIMULGEL EG QD", and "SIMULGEL NS" (all manufactured by SEPPIC SA).

[0048] The polymer (G12a) is a polymer containing at least a structural unit derived from (meth)acrylic acid and / or a (meth)acrylic acid alkyl ester (monomer 1) and a structural unit derived from a (meth)acrylic acid polyoxyethylene alkyl ether (monomer 2). Examples of the monomer 2 include polyoxyethylene stearyl ether methacrylate and polyoxyethylene behenyl ether methacrylate. The average number of moles of oxyethylene added in the monomer 2 is preferably 15 to 30. Only one type of the monomer 1 and the monomer 2 may be used, or two or more types may be used. The polymer (G12a) may contain a structural unit derived from a monomer component other than the monomer 1 and the monomer 2.

[0049] Examples of the polymer (G12a) include copolymers of (meth)acrylic acid and / or (meth)acrylic acid alkyl esters and polyoxyethylene stearyl ether methacrylate, copolymers of (meth)acrylic acid and / or (meth)acrylic acid alkyl esters and polyoxyethylene behenyl ether methacrylate, etc. Preferred examples of the polymer (G12a) include compounds represented by the INCI names "ACRYLATES / STEARETH-20 METHACRYLATE COPOLYMER", compounds represented by the INCI names "ACRYLATES / STEARETH-20 METHACRYLATE CROSSPOLYMER", compounds represented by the INCI names "ACRYLATES / BEHENETH-25 METHACRYLATE COPOLYMER", etc. Among the above, from the viewpoint of the stability of the cosmetic preparation, (acrylates / steareth-20 methacrylate) copolymer and (acrylates / beheneth-25 methacrylate) copolymer are preferred.

[0050] As the polymer (G12a), a commercially available product can be used, for example, trade names "Accurin 22", "Accurin 88", and "Accurin 28" (all manufactured by The Dow Chemical Company).

[0051] Polymer (G12b) is a carboxyvinyl polymer (carbomer). Polymer (G12b) is, for example, designated by the INCI name "Carbomer".

[0052] As the polymer (G12b), a commercially available product can be used. Examples of the commercially available product include trade names "Carbopol 940", "Carbopol 941", "Carbopol 934", "Carbopol 980", and "Carbopol 981" (all manufactured by Lubrizol Corporation).

[0053] Polymer (G12c) is a polymer in which at least a portion of the carboxyl groups of the carboxyvinyl polymer is esterified (for example, esterified with an alkyl group having 10 to 30 carbon atoms). Polymer (G12c) is expressed, for example, by the INCI name "Acrylates / C10-30 Alkyl Acrylate Crosspolymer".

[0054] As the polymer (G12c), a commercially available product can be used. Examples of the commercially available product include trade names "Pemulen TR 1", "Pemulen TR 2", "Carbopol 1382", "Carbopol 1342", "Carbopol ETD2020", "Carbopol Ultrez 20", and "Carbopol Ultrez 21" (all manufactured by Lubrizol Corporation).

[0055] It is preferable that the component (G12) is neutralized with a basic substance or is neutralized with a basic substance before use. In this case, examples of the basic substance include alkanolamines such as triethanolamine and monoethanolamine; inorganic bases such as ammonia, sodium hydroxide, and potassium hydroxide; and basic amino acids such as arginine. The amount of the basic substance added is an amount sufficient to neutralize the component (G12), and may be appropriately mixed depending on the type of the component (G12) and the basic substance, and the amount of the component (G12) used.

[0056] The content of component (G) in the aqueous cosmetic of the present invention is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and 2.0% by mass or less, preferably 1.0% by mass or less, based on 100% by mass of the aqueous cosmetic of the present invention. When the content is 0.01% by mass or more, the compatibility of the agent with the skin is improved. When the content is 2.0% by mass or less, the stickiness caused by component (G) can be suppressed, and the stickiness after application can be further suppressed. In addition, the skin compatibility of the aqueous cosmetic can be improved. The content of component (G) is the total content of all components (G) in the aqueous cosmetic of the present invention.

[0057] The content of component (G1) in the aqueous cosmetic of the present invention is not particularly limited, but is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and 2.0% by mass or less, more preferably 1.0% by mass or less, based on 100% by mass of the aqueous cosmetic of the present invention. The content of component (G1) is the total content of all components (G1) in the aqueous cosmetic of the present invention.

[0058] [Oily ingredients] The aqueous cosmetic preparation of the present invention may or may not contain an oily component. Examples of the oily component include hydrocarbon oils, higher alcohols (e.g., aliphatic alcohols having 12 to 24 carbon atoms, etc.), ester oils, animal and vegetable oils, silicone oils, higher fatty acids, etc. The oily components may be used alone or in combination of two or more.

[0059] Examples of the hydrocarbon oil include petrolatum, ceresin, ozokerite, paraffin, microcrystalline wax, polyethylene wax, and Fischer-Tropsch wax (synthetic wax), α-olefin oligomer, squalane (synthetic squalane, vegetable squalane), squalene, liquid isoparaffin, liquid paraffin (mineral oil), (C13-15) alkane, hydrogenated polyisobutene, hydrogenated polydecene, light isoparaffin (isododecane), light liquid isoparaffin, and liquid isoparaffin.

[0060] Examples of the higher alcohol include cetyl alcohol (cetanol), stearyl alcohol, behenyl alcohol, and isostearyl alcohol.

[0061] Examples of the animal and vegetable oils include animal and vegetable waxes such as carnauba wax, sunflower seed wax, candelilla wax, Japan wax, rice bran wax, beeswax, shellac wax, and spermaceti; shea butter, cacao butter, Astrocaryum murumuru seed oil, hardened castor oil, mango butter, palm oil, avocado oil, argan oil, olive oil, rice bran oil, soybean oil, corn oil, palm kernel oil, palm oil, castor oil, grape seed oil, kukui nut oil, jojoba oil, macadamia nut oil, crambe abyssinica seed oil, meadowfoam oil, and sunflower oil.

[0062] Examples of the ester oils include isononyl isononanoate, isopropyl myristate, isodecyl neopentanoate, octyldodecyl myristate, octyldodecyl oleate, octyldodecyl isostearate, diisostearyl malate, diethylhexyl sebacate, glyceryl tri-2-ethylhexanoate (trioctanoin), tri(caprylic acid / capric acid), glyceryl triisopalmitate, pentaerythritol tetra-2-ethylhexanoate, pentaerythrityl tetraoctanoate, pentaerythrityl tetraisostearate, decaerythritol, and the like. Examples of suitable oleic acid include polyglyceryl-10 isostearate, hydrogenated castor oil hydroxystearate, tri(caprylic acid / capric acid / myristic acid / stearic acid)glyceryl, dipentaerythrityl hexahydroxystearate, ethyl stearate, myristyl myristate, cholesteryl isostearate, dipentaerythrityl hexa(hydroxystearic acid / stearic acid / rosin acid), dipentaerythrityl tetra(hydroxystearic acid / isostearic acid), di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, etc.

[0063] Examples of the silicone oil include dimethylpolysiloxane, poly(oxyethylene-oxypropylene)methylpolysiloxane copolymer, cyclopentasiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, polyoxyethylene-methylpolysiloxane copolymer, aminoethylaminopropylmethylsiloxane-dimethylpolysiloxane copolymer, dimethiconol, highly polymerized dimethicone, and highly polymerized dimethiconol.

[0064] Generally, when the content of oily components is high, white cast is easily suppressed, but in the present invention, even when the content of oily components is low or no oily components are contained, sufficient white cast suppression effect can be exhibited due to the effects of components (B) and (C). The content of oily components in the aqueous cosmetic of the present invention is not particularly limited, but from the viewpoint of maintaining freshness, it is preferably 2.0 mass% or less, more preferably 1.0 mass% or less, 0.5 mass% or less, or even 0 mass% relative to 100 mass% of the aqueous cosmetic of the present invention. That is, the aqueous cosmetic of the present invention may not contain an oily component. When the aqueous cosmetic of the present invention contains an oily component, the content of the oily component in the aqueous cosmetic of the present invention is not particularly limited, but is preferably 0.001 mass% or more, more preferably 0.05 mass% or more, relative to 100 mass% of the aqueous cosmetic of the present invention. The content of the oily components is the total content of all oily components in the aqueous cosmetic of the present invention.

[0065] [Other ingredients] The aqueous cosmetic of the present invention may contain components other than the above components (other components) within the scope of not impairing the object of the present invention. The above other components are not particularly limited, and include, for example, components that are usually used in cosmetics and quasi-drugs. Specific examples include cooling agents such as menthol and menthyl glyceryl ether; moisturizing agents such as glycerin mono 2-ethylhexyl ether and acetyl hydroxyproline; preservatives and disinfectants such as paraoxybenzoic acid esters and phenoxyethanol; pH adjusters such as phosphoric acid and its salts, citric acid and its salts, lactic acid and its salts, sodium hydroxide, and triethanolamine; anti-inflammatory agents such as glycyrrhizic acid and its salts; fragrances; coloring materials; ultraviolet absorbers; antioxidants; sequestering agents (chelating agents); film-forming polymer compounds such as polyvinylpyrrolidone; vitamins; amino acids; astringents; whitening agents; animal and plant extracts; acids; alkalis, etc.

[0066] [Aqueous cosmetic preparation of the present invention] The aqueous cosmetic preparation of the present invention can be produced by any known or conventional method, and the production method is not particularly limited. For example, the aqueous cosmetic preparation can be produced by mixing the above-mentioned components and stirring them with a homomixer, a dispersing mixer, a paddle mixer, or the like.

[0067] The aqueous cosmetic preparation of the present invention is an aqueous cosmetic preparation containing water as a medium. The system of the aqueous cosmetic preparation of the present invention may be a so-called aqueous system (including a solubilized system) or an oil-in-water emulsion system.

[0068] The aqueous cosmetic preparation of the present invention can be used by being filled into a container from which the composition can be easily taken out, such as a dispenser container, a tube container, or a wide-mouth jar container.

[0069] The aqueous cosmetic of the present invention is preferably a skin cosmetic applied to the skin. The aqueous cosmetic of the present invention is not particularly limited, but examples thereof include skin care cosmetics such as moisturizing cosmetics, whitening cosmetics, acne care cosmetics, and anti-aging cosmetics (for example, intended to suppress wrinkles and sagging, etc.); scalp care cosmetics (for example, intended to moisturize and suppress sebum, etc.); deodorant cosmetics; sunscreen cosmetics; shaving cosmetics; body cleansers (for example, body shampoos, solid soaps, etc.). Among them, it is preferable that the aqueous cosmetic of the present invention is a cosmetic for suppressing or improving wrinkles. The aqueous cosmetic of the present invention may be, for example, any of cosmetics, quasi-drugs, medicines, and miscellaneous goods.

[0070] The formulation of the aqueous cosmetic of the present invention is not particularly limited, and examples thereof include various formulations such as lotion, cream, gel, emulsion, aerosol spray, non-aerosol spray, roll-on, sheet (paper), etc. Among these, lotion and gel are preferred.

[0071] The areas to which the aqueous cosmetic composition of the present invention is applied are not particularly limited, and examples include the face (forehead, eyes, corners of the eyes, cheeks, mouth, etc.), the body (arms, elbows, back of the hands, fingertips, feet, knees, heels, neck, armpits, back, etc.), etc. EXAMPLES

[0072] The present invention will be specifically described below with reference to examples and comparative examples. The present invention is not limited to the following examples. The amounts listed in the tables are the amounts of each component (i.e., the amount of active ingredient in each raw material, i.e., the pure content), and are expressed in "mass %" unless otherwise specified.

[0073] (evaluation) The evaluation was carried out as follows. All evaluations were carried out by three expert evaluators.

[0074] (Test Example 1: Blending upon application (blend on skin)) Approximately 0.7 g of the aqueous cosmetic compositions obtained in the Examples and Comparative Examples were placed in the palm of the hand, spread on the palm, and then evenly applied to the entire face. Based on the application feel, the compatibility upon application was evaluated according to the following evaluation criteria. <Evaluation criteria for compatibility when applied> ◯ (Good): The water-based cosmetic appears to have disappeared from the skin within 30 seconds after application. × (Poor): Even 30 seconds after application, the water-based cosmetic preparation is clearly felt to remain on the skin.

[0075] (Test Example 2: Stickiness after application) In Test Example 1, after application of the aqueous cosmetic preparation, the skin was touched with the palm after 3 minutes, and the stickiness was evaluated according to the following evaluation criteria. <Evaluation criteria for stickiness after application> ○ (Good): Little or no stickiness is felt. × (bad): Stickiness is clearly felt.

[0076] (Test Example 3: White cast after application) In Test Example 1, the skin was visually observed 3 minutes after application of the aqueous cosmetic preparation, and evaluated according to the following evaluation criteria. <Evaluation criteria for white cast after application> ◯ (Good): No whitening due to deposits was observed on the applied skin. × (Poor): The skin where the product was applied turned white with deposits.

[0077] The results are shown in the table below.

[0078]

Table 1

Claims

1. Contains the following component A, the following component B, the following component C, the following component D, and the following component E, The content of the component A is 2.0 to 8.0 mass %, The content of the component B is 3.0 to 20.0 mass %, The content of the component C is 0.1 to 1.0 mass %, The content of the component D is 2.0 to 30.0 mass %, The aqueous cosmetic preparation has a content of component E of 30.0 to 92.9% by mass. Ingredient A: Niacinamide Component B: Polyhydric alcohol Component C: Nonionic surfactant Component D: Ethanol Component E: Water

2. The aqueous cosmetic preparation according to claim 1, further comprising the following component F, wherein the content of said component F is 0.5 to 15.0% by mass: Component F: Powder

3. 3. The aqueous cosmetic preparation according to claim 1, further comprising the following component G, wherein the content of said component G is 0.01 to 2.0% by mass: Component G: Water-soluble polymer

4. 3. The aqueous cosmetic preparation according to claim 1, which is free of an oily component or contains no more than 2.0% by mass of an oily component.

5. 3. The aqueous cosmetic preparation according to claim 1, which is in a liquid or gel form.

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