JP2022158540A - Cosmetic - Google Patents

Abstract

To provide a cosmetic that contains alkoxy salicylic acid or a salt thereof and has a good feeling of use.SOLUTION: A cosmetic contains alkoxy salicylic acid having a specific structure or a salt thereof and agar. The content of the agar is 0.3 mass% or more relative to the total mass of the cosmetic.SELECTED DRAWING: None

Description

The present invention relates to cosmetics comprising alkoxysalicylic acid or salts thereof.

Alkoxysalicylic acid (or a salt thereof) has a melanogenesis inhibitory action, and it has been reported that an external preparation for skin containing this has an excellent whitening effect. However, when alkoxysalicylic acid is blended into cosmetics, users generally feel stickiness after application and are dissatisfied with the moist feeling of the skin.

It is also known to use agar as a thickening agent for cosmetics. It has been disclosed that agar is blended with a cosmetic containing alkoxysalicylic acid (for example, Patent Document 1). However, there is room for further improvement in the feeling of use of such cosmetics.

WO2008/078787

The present inventors have surprisingly found that combining alkoxysalicylic acid or a salt thereof with a specific amount or more of agar significantly improves the feel during use. The present invention is based on these findings.

Accordingly, the present invention discloses a cosmetic comprising alkoxysalicylic acid or a salt thereof and a specific amount or more of agar.

（式中、Ｒ^ａは、炭素数１～６のアルキル基である）、および
寒天
を含んでなる化粧料であって、
前記寒天の配合量が、化粧料の総質量に対して、０．３質量％以上である、化粧料。
［２］Ｒ^ａが、メチル基またはエチル基である、［１］に記載の化粧料。
［３］前記アルコキシサリチル酸またはその塩が、４－メトキシサリチル酸カリウム塩である、［１］または［２］に記載の化粧料。
［４］前記アルコキシサリチル酸またはその塩の配合量が、化粧料の総量に対して、０．００１～４質量％である、［１］～［３］のいずれかに記載の化粧料。
［５］前記寒天の配合量が、化粧料の総量に対して、０．３～１．５質量％である、［１］～［４］のいずれかに記載の化粧料。
［６］前記アルコキシサリチル酸またはその塩の配合量と、前記寒天の配合量と、の質量比が１：０．３～１：１．５である、［１］～［５］のいずれか一項に記載の化粧料。
［７］アクリル酸・メタクリル酸アルキル共重合体をさらに含む、［１］～［６］のいずれか一項に記載の化粧料。
［８］前記アクリル酸・メタクリル酸アルキル共重合体が、アクリル酸アルキル、またはメタクリル酸アルキルを重合単位に含むポリマーまたはコポリマーが相互に架橋されたクロスポリマーである、［７］に記載の化粧料。
［９］Ｂ型回転粘度計を用いて３０℃で測定した粘度が、３，０００ｍＰａ・ｓ以上である、［１］～［８］のいずれか一項に記載の化粧料。 According to the present invention, the following inventions are provided.
[1] Alkoxysalicylic acid represented by formula (a) or a salt thereof

(Wherein, R ^a is an alkyl group having 1 to 6 carbon atoms), and a cosmetic comprising agar,
A cosmetic, wherein the agar content is 0.3% by mass or more relative to the total mass of the cosmetic.
[2] The cosmetic according to [1], wherein R ^a is a methyl group or an ethyl group.
[3] The cosmetic according to [1] or [2], wherein the alkoxysalicylic acid or its salt is 4-methoxysalicylic acid potassium salt.
[4] The cosmetic according to any one of [1] to [3], wherein the content of the alkoxysalicylic acid or salt thereof is 0.001 to 4% by mass relative to the total amount of the cosmetic.
[5] The cosmetic according to any one of [1] to [4], wherein the content of the agar is 0.3 to 1.5% by mass with respect to the total amount of the cosmetic.
[6] Any one of [1] to [5], wherein the mass ratio of the amount of the alkoxysalicylic acid or its salt and the amount of the agar is 1:0.3 to 1:1.5. Cosmetics described in the paragraph.
[7] The cosmetic according to any one of [1] to [6], further comprising an acrylic acid/alkyl methacrylate copolymer.
[8] The cosmetic material according to [7], wherein the alkyl acrylate/methacrylate copolymer is a cross-linked cross-linked polymer or copolymer containing alkyl acrylate or alkyl methacrylate in polymer units. .
[9] The cosmetic according to any one of [1] to [8], which has a viscosity of 3,000 mPa·s or more when measured at 30° C. using a B-type rotational viscometer.

According to the present invention, it is possible to provide a cosmetic that has excellent usability. In particular, the present invention can provide non-stickiness after application and a moist feeling on the skin after application.

Specific description of the invention

The present invention relates to a cosmetic comprising alkoxysalicylic acid having a specific structure or a salt thereof and agar, wherein the amount of agar is 0.3% by mass or more relative to the total mass of the cosmetic. is.
The cosmetic according to the present invention preferably has a viscosity of 3,000 mPa s or more, more preferably 3,000 to 60,000 mPa s, when measured at 30° C. using a Brookfield rotational viscometer. It is preferably 10,000 to 30,000 mPa·s. By having such a viscosity, it is possible to impart a fresh feeling when the cosmetic is applied.

式中、Ｒ^ａは、炭素数１～６のアルキル基であり、直鎖であっても分岐であってもよい。Ｒ^ａとしては、例えば、メチル基、エチル基、ｎ－プロピル基、イソプロピル基、ｎ－ブチル基、イソブチル基、ｔｅｒ－ブチル基、ｓｅｃ－ブチル基等が挙げられ、好ましくは、メチル基またはエチル基である。
置換基ＯＲ^ａの位置は特に限定されないが、サリチル酸の３位、４位または５位であることが好ましく、より好ましくは４位である。 Alkoxysalicylic acid or its salt The cosmetic according to the present invention comprises the alkoxysalicylic acid represented by the formula (a) or its salt (hereinafter sometimes simply referred to as alkoxysalicylic acid or its salt).

In the formula, R ^a is an alkyl group having 1 to 6 carbon atoms and may be linear or branched. Examples of R ^a include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, ter-butyl group, sec-butyl group and the like, preferably methyl group or ethyl group. is the base.
Although the position of the substituent OR ^a is not particularly limited, it is preferably the 3-, 4- or 5-position of salicylic acid, more preferably the 4-position.

Alkoxysalicylic acids represented by formula (a) include, for example, 3-methoxysalicylic acid, 3-ethoxysalicylic acid, 4-methoxysalicylic acid, 4-ethoxysalicylic acid, 4-propoxysalicylic acid, 4-isopropoxysalicylic acid, and 4-butoxysalicylic acid. , 5-methoxysalicylic acid, 5-ethoxysalicylic acid, 5-propoxysalicylic acid and the like, preferably 4-methoxysalicylic acid.

Alkoxysalicylic acids are known substances, and for example, 5-methoxysalicylic acid and 4-methoxysalicylic acid can be easily synthesized by methods described in "Beil, 10227" and "Beil, 10379," respectively. It is also available as a reagent from Aldrich Co. and others.

Salts of alkoxysalicylic acid are also preferred, and the type of salt is not particularly limited as long as it is a pharmacologically acceptable salt. Examples include alkali metal salts such as sodium salts, potassium salts, and lithium salts; calcium salts; Alkaline earth metal salts such as magnesium salts; ammonium salts; .

Alkoxysalicylic acid or a salt thereof may be used alone or in combination of two or more. The amount of the alkoxysalicylic acid or its salt to be blended is appropriately selected depending on the application and the balance with other ingredients. , preferably 0.1 to 5% by mass, more preferably 0.5 to 3.5% by mass, based on the total amount of the cosmetic.

Agar The cosmetic according to the present invention comprises agar. The agar is not particularly limited as long as it contains agarose, which has a high gelling power, as a main component. Agar may be natural or processed. Commercially available agar includes, for example, Ina agar PS-84, Z-10, AX-30, AX-100, AX-200, T-1, S-5, M-7 (manufactured by Ina Food Industry Co., Ltd. ) and the like can be suitably used. Purified agarose may also be used as agar.

The content of agar is 0.3% by mass or more, preferably 0.3 to 1.5% by mass, more preferably 0.6 to 1.5% by mass, relative to the total mass of the cosmetic. is.
The mass ratio of the amount of alkoxysalicylic acid or its salt and the amount of agar is preferably 1:0.3 to 1:1.5, more preferably 1:0.6 to 1:1. 5.
The cosmetic according to the present invention can obtain a remarkably improved usability by containing a specific amount or more of agar, which is larger than the amount generally employed. Specifically, it is possible to obtain both non-stickiness after application of the cosmetic and moist feeling of the skin after application.
In general, when the amount of agar added is large, it is possible to impart freshness, but it causes stickiness after application. The present inventors have found that stickiness can be specifically suppressed in the cosmetic according to the present invention by combining agar with a specific alkoxysalicylic acid or salt even when the amount of agar is high. be.

Alkyl Acrylic Acid/Methacrylate Copolymer The cosmetic according to the present invention preferably further contains an acrylic acid/alkyl methacrylate copolymer. By containing this, it is possible to impart good emulsification stability and a fresh feel to the cosmetic.
The alkyl acid/alkyl methacrylate copolymer is a polymer in which at least part of the carboxyl groups of a polymer having acrylic acid or methacrylic acid as a main chain is esterified with an alkyl group. The alkyl group linked by an ester bond may be linear or branched and preferably has 10-30 carbon atoms.
The alkyl acid/alkyl methacrylate copolymer is preferably a cross-polymer in which polymers or copolymers containing alkyl acrylate or alkyl methacrylate in polymer units are mutually crosslinked.
Specific examples of alkyl acrylate/methacrylate copolymers include acrylates/alkyl acrylate (C10-30) crosspolymers.

The amount of the alkyl acrylate/methacrylate copolymer is preferably 0.005 to 0.5% by mass, more preferably 0.01 to 0.3% by mass, based on the total mass of the cosmetic. be.

In addition to the above ingredients, the cosmetic according to the present invention may contain ingredients commonly used in cosmetics, such as oily ingredients, ultraviolet absorbers, surfactants, humectants, thickeners, polyhydric alcohols, powder components, and synthetic resins. Emulsions, amino acids, neutralizers, pH adjusters, antioxidants, preservatives, chelating agents, etc. may be added as needed.

The oily component is not particularly limited, and examples thereof include oils and fats, waxes, hydrocarbon oils, higher fatty acids, higher alcohols, synthetic ester oils, silicone oils, and silicones.

Examples of fats and oils include avocado oil, camellia oil, evening primrose oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, Flaxseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, sinagiri oil, Japanese paulownia oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, triiso Liquid oils and fats such as glycerol palmitate; cocoa butter, coconut oil, horse fat, hydrogenated coconut oil, palm oil, beef tallow, mutton tallow, hydrogenated beef tallow, palm kernel oil, lard, beef bone fat, Japanese magnolia kernel oil, hydrogenated oil, Solid fats and oils such as beef leg fat, Japanese wax, hydrogenated castor oil, and the like are included.

Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, wart wax, whale wax, montan wax, bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, isopropyl lanolin fatty acid, hexyl laurate, and reduced lanolin. , jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, and the like.

Examples of hydrocarbon oils include oils such as liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, vaseline, and microcrystalline wax.

Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, 12-hydroxystearic acid, undecylenic acid, toric acid, isostearic acid, linoleic acid, linoleic acid, ethyl Examples include icosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and the like.

Examples of higher alcohols include linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, and cetostearyl alcohol; monostearyl glycerin ether (bacyl alcohol), 2-decyltetradecinol, lanolin; Alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, branched chain alcohol such as octyldodecanol, and the like.

Synthetic ester oils include, for example, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, Diisostearyl malate, glyceryl di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexate, trimethylolpropane triisostearate, pentaerythrityl tetraethylhexanoate, glyceryl tri-2-ethylhexate, triisostearate Methylolpropane, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, tri-2-heptylundecanoic acid glyceride, castor oil fatty acid methyl ester, oleic oil, acetoglyceride, 2-heptylun palmitate Decyl, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-ctyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, palmitic acid 2-hexyldecyl acid, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, ethyl acetate, butyl acetate, amyl acetate, triethyl citrate, crotamiton (C ₁₃ H ₁₇ NO) and the like.

Examples of silicone oils include linear silicone oils such as dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, and methylhydrogenpolysiloxane; octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetra Cyclic silicone oils such as methyltetrahydrogencyclopolysiloxane; normal temperature liquid alkyl-modified silicone oils such as capryl methicone, capryl trimethicone and stearyl methicone; Fluorine-modified silicone oil and the like are included.

Examples of silicones include alkyl and alkoxy silicon waxes such as stearyl-modified dimethicone and behenyl-modified dimethicone, silicone resins forming a three-dimensional network structure, and silicone rubbers.

Examples of ultraviolet absorbers include benzoic acid-based ultraviolet absorbers such as para-aminobenzoic acid, para-aminobenzoic acid monoglycerol ester, N,N-dipropoxy para-aminobenzoic acid ethyl ester, and N,N-dimethyl para-aminobenzoic acid ethyl ester; Anthranilic acid UV absorbers such as homomenthyl-N-acetylanthranilate; salicylic acid UV absorbers such as amyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p-isopropanol phenyl salicylate; octyl methoxycinnamate , glyceryl di-paramethoxycinnamate-mono-2-ethylhexanoate, octyl cinnamate, ethyl-4-isopropyl cinnamate, methyl-2,5-diisopropyl cinnamate, ethyl-2,4-diisopropyl cinnamate, Methyl-2,4-diisopropylcinnamate, propyl-p-methoxycinnamate, isopropyl-p-methoxycinnamate, isoamyl-p-methoxycinnamate, octyl-p-methoxycinnamate (2-ethylhexyl-p-methoxycinnamate mate), 2-ethoxyethyl-p-methoxycinnamate, cyclohexyl-p-methoxycinnamate, ethyl-α-cyano-β-phenylcinnamate, 2-ethylhexyl-α-cyano-β-phenylcinnamate, glyceryl mono -2-ethylhexanoyl-diparamethoxycinnamate, 3,4,5-trimethoxycinnamate-3-methyl-4-[methylbis(trimethylsiloxy)silyl]butyl, trimethoxycinnamate methylbis(trimethyl) siloxy) silyl isopentyl cinnamic acid UV absorbers; Benzophenone UV absorbers such as hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4′-phenylbenzophenone-2-carboxylate;3 -(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l-camphor, urocanic acid, urocanic acid ethyl ester, 2,2'-hydroxy-5-methylphenylbenzotriazole, 2-( 2'-hydroxy-5'-t-octylphenyl)benzotriazole, dibenzalazine, dianisoylmethane, 4-methoxy-4'-t-butyldibenzoylmethane, 5-(3,3-dimethyl-2-norbornylidene)- 3-pentan-2-one, dimorpholinopyridazinone, and the like.

Lipophilic nonionic surfactants include, for example, lipophilic nonionic surfactants such as sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan fatty acid esters such as sorbitan sesquioleate, diglycerol sorbitan penta-2-ethylhexylate, glycerin such as glyceryl monostearate, α,α'-oleic acid pyroglutamic acid glyceryl, glyceryl monostearate malate or Polyglycerin esters, propylene glycol fatty acid esters such as propylene glycol monostearate, hydrogenated castor oil derivatives, glycerin alkyl ethers and the like can be mentioned.

Examples of hydrophilic nonionic surfactants include polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan monooleate and polyoxyethylene sorbitan monostearate; polyoxyethylene sorbit monolaurate, polyoxyethylene sorbit Polyoxyethylene sorbitol fatty acid esters such as monooleate and polyoxyethylene sorbitol monostearate; Polyoxyethylene fatty acid esters such as oxyethylene glycerin fatty acid ester, polyoxyethylene monooleate, polyoxyethylene distearate; polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, polyoxyethylene stearyl ether, polyoxyethylene -polyoxyethylene alkyl ethers such as 2-octyldodecyl ether and polyoxyethylene cholestanol ether; polyoxyethylene alkyl ethers such as polyoxyethylene octylphenyl ether, polyoxyethylene nonylphenyl ether and polyoxyethylene dinonylphenyl ether; Phenyl ethers; pluronic surfactants such as pluronic; polyoxyethylene polyoxypropylene cetyl ether, polyoxyethylene polyoxypropylene-2-decyltetradecyl ether, polyoxyethylene polyoxypropylene monobutyl ether, polyoxyethylene polyoxy Propylene, hydrogenated lanolin, polyoxyethylene polyoxypropylene glycerin ether, polyoxyethylene polyoxypropylene alkyl ethers such as PPG-13 decyltetradeceth-24; tetrapolyoxyethylene/tetrapolyoxypropylene ethylenediamine such as Tetronic Condensates; polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil monoisostearate, polyoxyethylene hydrogenated castor oil triisostearate, polyoxyethylene hydrogenated castor oil monopyroglutamic acid monoisostearate Acid diesters, polyoxyethylene castor oil derivatives or polyoxyethylene hydrogenated castor oil derivatives such as polyoxyethylene hydrogenated castor oil maleate; In addition to alkanolamides such as fatty acid diethanolamide, lauric acid monoethanolamide, and fatty acid isopropanolamide, polyoxyethylene propylene glycol fatty acid esters, polyoxyethylene alkylamines, polyoxyethylene fatty acid amide, sucrose fatty acid ester, polyoxy Ethylene nonylphenyl formaldehyde condensate, alkylethoxydimethylamine oxide, trioleyl phosphate and the like.

Examples of silicone surfactants include polyoxyalkylene-modified silicones, polyoxyalkylene/alkyl co-modified silicones, polyglycerin-modified silicones, and polyglycerin/alkyl co-modified silicones. Specifically, PEG- 10 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PEG/PPG-10/1 dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, bisbutyl dimethicone polyglyceryl-3 and the like.

Examples of anionic surfactants include fatty acid soaps such as sodium laurate and sodium palmitate; higher alkyl sulfate salts such as sodium lauryl sulfate and potassium lauryl sulfate; Alkyl ether sulfate ester salts such as sodium lauryl sulfate; N-acylsarcosic acid such as sodium lauroyl sarcosinate, sodium N-myristoyl-N-methyltaurate, sodium N-stearoyl-N-methyltaurate, sodium cocoate methyl tauride, Higher fatty acid amide sulfonates such as sodium lauryl methyl tauride; Phosphate ester salts such as sodium polyoxyethylene oleyl ether phosphate and sodium polyoxyethylene stearyl ether phosphate; sulfosuccinates such as sodium ethanolamide polyoxyethylene sulfosuccinate and sodium lauryl polypropylene glycol sulfosuccinate; alkylbenzene sulfonates such as sodium linadodecylbenzene sulfonate and triethanolamine linadodecylbenzene sulfonate; monosodium N-lauroyl glutamate, N-acylglutamic acid such as disodium N-stearoylglutamic acid; higher fatty acid esters such as hydrogenated coconut oil fatty acid sodium glycerin sulfate, sulfuric acid ester salts, polyoxyethylene alkyl ether carboxylates, α-olefin sulfonates, higher fatty acid esters sulfonates, secondary alcohol sulfates, higher fatty acid alkylolamide sulfates, sodium lauroyl monoethanolamide succinate, N-palmitoyl aspartic acid, ditriethanolamine, coconut oil fatty acid collagen hydrolyzed alkaline salts, etc. .

Examples of cationic surfactants include alkyltrimethylammonium salts such as stearyltrimethylammonium chloride and lauryltrimethylammonium chloride; dialkyldimethylammonium salts such as distearyldimethylammonium chloride; ,-methylenepiperidinium), alkylpyridinium salts such as cetylpyridinium chloride, alkylquaternary ammonium salts, alkyldimethylbenzylammonium salts, alkylisoquinolinium salts, dialkylmorphonium salts, polyoxyethylenealkylamines, Alkylamine salts, polyamine fatty acid derivatives, amyl alcohol fatty acid derivatives, benzalkonium chloride, benzethonium chloride, cationic polymers, β-NN-dimethyl-N-ethylammonioethyl chloride vinylpyrrolidone chloride copolymers, etc. be done.

Amphoteric surfactants include, for example, 2-undecyl-N,N,N,-(hydroxyethylcarboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy 2 imidazoline-based amphoteric surfactants such as sodium salts; betaine-based amphoteric surfactants such as 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, betaine lauryldimethylaminoacetate, alkylbetaine, amidobetaine, and sulfobetaine agents and the like.

Moisturizing agents include, for example, cholesteryl-12-hydroxystearate, sodium lactate, dl-pyrrolidone carboxylate, urea, diglycerin ethylene oxide/propylene oxide adducts, and particularly acidic agents such as chondroitin sulfate and hyaluronic acid. When mucopolysaccharides are blended, they enhance the whitening effect of alkoxysalicylic acid and/or its salts.

Thickeners include, for example, gum arabic, carrageenan, tragacanth gum, quince seed (quince), casein, sodium caseinate, dextrin, gelatin, sodium alginate, methylcellulose, ethylcellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, polyvinyl alcohol, Sodium polyacrylate, carboxyvinyl polymer, guar gum, xanthan gum, magnesium aluminum silicate, bentonite, hectorite and the like.

Examples of polyhydric alcohols include ethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, glycerin, erythritol, trimethylolpropane, pentaerythritol, sorbitol, maltitol, diglycerin, and polyethylene glycol. .

Examples of powder components include talc, kaolin, mica, sericite, phlogopite, synthetic mica, magnesium carbonate, calcium carbonate, aluminum silicate, silica, zeolite, barium sulfate, and calcined calcium sulfate (calcined gypsum). , calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder, metal soap (zinc myristate, calcium palmitate, aluminum stearate, etc.), inorganic powder such as boron nitride; polyamide resin powder (nylon powder), polyethylene powder, polymethacrylic acid Organic powders such as methyl powder, polystyrene powder, copolymer resin powder of styrene and acrylic acid, polymethysilsesquioxane powder, cellulose powder; titanium dioxide, zinc oxide, iron oxide (red iron oxide), iron titanate, yellow oxide Inorganic pigments such as iron, black iron oxide, carbon black, low order titanium oxide, mango violet, cobalt violet, chromium oxide, ultramarine blue, and prussian blue; titanium oxide coated mica, titanium oxide coated bismuth oxychloride, colored titanium oxide coated Pearl pigments such as mica, bismuth oxychloride, and fish scale foil; Metal powder pigments such as aluminum powder; Organic pigments such as Red No. 201, Red No. 202, Orange No. 203, Yellow No. 205, Yellow No. 401, and Blue No. Zirconium such as No. 3, Yellow No. 4, Green No. 3 and Blue No. 1, organic pigments such as barium and aluminum lakes, and natural pigments such as chlorophyll and β-carotene.

Examples of synthetic resin emulsions include acrylic resin emulsions and polyvinyl acetate resin emulsions.

Amino acids include glycine, leucine, phenylalanine, tyrosine, aspartic acid, glutamic acid, sodium glutamate, arginine, histidine, lysine, cystine, cysteine, sodium acyl sarcosinate (sodium lauroyl sarcosinate), acyl glutamate, glutathione, pyrrolidone carboxylic acid, and the like. mentioned.

Neutralizing agents include inorganic bases such as sodium hydroxide and potassium hydroxide; monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 2 and organic amines such as -amino-2-methyl-1-propanol.

Examples of pH adjusters include buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, and succinic acid-sodium succinate.
Examples of antioxidants include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, and gallic acid esters.
Examples of antiseptics include phenoxyethanol, ethylparaben, butylparaben, chlorphenesin and the like.

Chelating agents include, for example, 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, disodium edetate, trisodium edetate, tetrasodium edetate, citric acid, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, trisodium ethylenediaminehydroxyethyl triacetate, disodium ethylenediaminetetraacetate and the like.

In addition, drugs such as caffeine, tannin, verapamil, tranexamic acid and its derivatives, licorice extract, glabridin, hot water extract of thorn fruit, various crude drugs, tocopherol acetate, glycyrrhizic acid and its derivatives or salts; vitamins C, other whitening agents such as magnesium ascorbate phosphate, glucoside ascorbate, arbutin; sugars such as glucose, fructose, mannose, sucrose, trehalose, etc. can be appropriately added, especially vitamin E esters such as tocopheryl acetate. Alkoxysalicylic acid and/or its salt has a whitening effect enhancement effect when it is blended.

The dosage form of the cosmetic according to the present invention is, for example, a solution system, a solubilization system, an emulsification system, a powder dispersion system, a powder dispersion system, a water-2-oil two-layer system, a water-oil-powder three-layer system, and the like. Not limited.
Cosmetics according to the present invention include skin care cosmetics (e.g. lotions, milky lotions, creams, serums, packs, etc.), makeup cosmetics (e.g., foundations, makeup bases, etc.), skin cleansers (e.g., facial cleansers, makeup removers, etc.), sunscreen cosmetics, ointments, and the like.

The cosmetic of the present invention can be produced according to a conventional method. When the cosmetic according to the present invention is an emulsified cosmetic, the method of emulsification is not particularly limited.

The present invention will be specifically described based on the following examples, but the present invention is not limited to these examples. Unless otherwise specified, the content is shown in % by mass with respect to the total amount.

[Examples 1 to 3 and Comparative Examples 1 and 2]
Cosmetics of Examples 1 to 3 and Comparative Examples 1 and 2 were prepared with the formulations shown in Table 1. The viscosities of the obtained cosmetics are shown in Table 1. The viscosity was measured with a Brookfield viscometer (30°C).

[Usability evaluation]
Regarding the cosmetics of Examples and Comparative Examples, when the cosmetics of Examples and Comparative Examples were applied to the skin by 10 expert panelists, (1) the lack of stickiness after application and (2) the skin after application Each evaluation was performed about the moist feeling. The evaluation criteria for each evaluation are as follows, and the obtained results are shown in Table 1.
A: Nine or more of the panelists answered that they felt an effect.
B: Six to eight panelists answered that they felt an effect.
C: 3 to 5 panelists answered that they felt an effect.
D: 0 to 2 panelists answered that they felt an effect.

From the results in Table 1, the usability of the cosmetic comprising a combination of alkoxysalicylic acid or a salt thereof and 0.3% by mass or more of agar with respect to the total mass of the cosmetic is remarkably excellent. I found out.

Claims (9)

Alkoxysalicylic acid represented by formula (a) or a salt thereof

(Wherein, R ^a is an alkyl group having 1 to 6 carbon atoms), and a cosmetic comprising agar,
A cosmetic, wherein the agar content is 0.3% by mass or more relative to the total mass of the cosmetic. The cosmetic according to claim 1, wherein Ra is ^a methyl group or an ethyl group. The cosmetic according to claim 1 or 2, wherein the alkoxysalicylic acid or its salt is 4-methoxysalicylic acid potassium salt. The cosmetic according to any one of claims 1 to 3, wherein the amount of the alkoxysalicylic acid or its salt is 0.001 to 4% by mass relative to the total amount of the cosmetic. The cosmetic according to any one of Claims 1 to 4, wherein the amount of the agar compounded is 0.3 to 1.5% by mass with respect to the total amount of the cosmetic. The makeup according to any one of claims 1 to 5, wherein the mass ratio of the amount of the alkoxysalicylic acid or its salt and the amount of the agar is 1:0.3 to 1:1.5. fee. The cosmetic according to any one of claims 1 to 6, further comprising an acrylic acid/alkyl methacrylate copolymer. 8. The cosmetic material according to claim 7, wherein the alkyl acrylate/methacrylate copolymer is a cross-polymer in which polymers or copolymers containing alkyl acrylate or alkyl methacrylate in polymer units are mutually crosslinked. The cosmetic according to any one of claims 1 to 8, which has a viscosity of 3,000 mPa·s or more measured at 30°C using a B-type rotational viscometer.