Cosmetic

Abstract

This invention provides a cosmetic that demonstrates a satisfactory feeling when used. This cosmetic contains (A) polyoxyethylene fatty acid sorbitan, (B) an N-acylmethyltaurine salt, (C) linear higher alcohol, (D) a cyclic carboxamide derivative having a specific structure or a salt thereof, (E) an oil component, and (F) water.

Description

cosmetics

[0001] The present invention relates to a cosmetic preparation. Specifically, the present invention relates to a cosmetic preparation comprising a cyclic carboxamide derivative or a salt thereof.

[0002] Cyclic carboxamide derivatives have the effect of inhibiting heparanase activity, and have been proposed for use, for example, as anti-wrinkle agents or as whitening agents effective in preventing or suppressing pigmentation such as age spots (Patent Document 1).

[0003] Oil-in-water emulsion cosmetics are widely used as bases for topical skin preparations, including skin cosmetics, due to their refreshing feel. However, emulsions are inherently unstable, and are known to experience creaming, aggregation, or coalescence when left for extended periods. Conventional lotions and creams have ensured stability over time by incorporating common water-soluble thickeners such as carboxyvinyl polymers. However, incorporating large amounts of water-soluble thickeners makes it difficult to eliminate sliminess, heavy spread, stickiness, and creasing upon application. Therefore, a cosmetic that provides a refreshing, penetrating feel without a slimy feel has been proposed by combining polyoxyethylene fatty acid sorbitan, a specific surfactant, and a higher alcohol (see, for example, Patent Document 2).

[0004] International Publication No. 2011 / 040496, Japanese Patent Application Laid-Open No. 2008-88129

[0005] The present inventors have surprisingly found that an excellent feeling during use can be achieved by using a cosmetic composition containing a combination of a cyclic carboxamide derivative or its salt, a fatty acid polyoxyethylene fatty acid sorbitan, an N-acylmethyl taurine salt, and a linear higher alcohol. The present invention is based on these findings.

[0006] The present invention provides the following inventions: [1] A cosmetic comprising (A) polyoxyethylene fatty acid sorbitan, (B) an N-acylmethyl taurine salt, (C) a linear higher alcohol, (D) a cyclic carboxamide derivative represented by formula (1) or a salt thereof, (E) an oil component, and (F) water. (In the formula, R １ represents a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, and X represents -CH ２ - or -N(R ２ )—, where R ２ represents a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, and n represents an integer of 1 to 3. [2] R １ is a hydroxyalkyl group having 1 to 3 carbon atoms, and X is -CH ２ - or -NH-, and n is 1. [3] The cosmetic preparation according to [1] or [2], wherein component (D) is 1-(2-hydroxyethyl)-2-imidazolidinone. [4] The cosmetic preparation according to any one of [1] to [3], further comprising (G) a glycerin monoalkyl ester, a glycerin monoalkyl ether, a sorbitan monoalkyl ester, a sorbitan monoalkyl ester, a sterol, or a branched higher alcohol. [5] The cosmetic preparation according to any one of [1] to [4], further comprising (H) an organic acid or a salt thereof. [6] The cosmetic preparation according to any one of [1] to [5], wherein component (A) is polyoxyethylene sorbitan monostearate. [7] The cosmetic preparation according to any one of [1] to [6], wherein component (B) is sodium N-stearoylmethyl taurate. [8] The cosmetic preparation according to any one of [1] to [7], wherein the blending amount of component (D) is 0.1 to 5 mass% relative to the total amount of the cosmetic preparation. [9] The cosmetic preparation according to any one of [1] to [8], wherein the molar ratio of component (A) to component (B) is (A):(B) = 1:0.05 to 1:1.5.

[10] The cosmetic preparation according to any one of [1] to [9], which is an oil-in-water emulsion cosmetic preparation.

[0007] According to the present invention, it is possible to provide a cosmetic product that has an excellent feeling when used, and in particular, it is possible to provide a moist feeling after application and a moisturizing film feeling when applied. Specific Description of the Invention

[0008] The present invention relates to a cosmetic comprising (A) polyoxyethylene fatty acid sorbitan, (B) an N-acylmethyl taurine salt, (C) a linear higher alcohol, (D) a cyclic carboxamide derivative having a specific structure or a salt thereof, (E) an oil, and (F) water.

[0009] (A) Polyoxyethylene fatty acid sorbitan The cosmetic preparation according to the present invention comprises (A) polyoxyethylene fatty acid sorbitan. Component (A) has a structure in which a straight-chain saturated fatty acid, such as stearic acid, palmitic acid, or myristic acid, is bound to polyoxyethylene, and the fatty acid moiety preferably has 14 to 18 carbon atoms. Component (A) is more preferably polyoxyethylene sorbitan monostearate. Examples of component (A) include, but are not limited to, POE(20) sorbitan stearate (polysorbate 60, e.g., NIKKOL TS-10V, manufactured by Nikko Chemicals Co., Ltd.), POE(20) sorbitan myristate, POE(20) sorbitan palmitate (e.g., NIKKOL TP-10V, manufactured by Nikko Chemicals Co., Ltd.), POE(6) sorbitan stearate (e.g., NIKKOL TS-106V, manufactured by Nikko Chemicals Co., Ltd.), POE(6) sorbitan myristate, and POE(6) sorbitan palmitate.

[0010] The component (A) may be blended in one or more types. The blending amount of the component (A) is preferably 0.05 to 7 mass%, more preferably 0.1 to 1.5 mass%, and even more preferably 0.2 to 1.0 mass%, relative to the total amount of the cosmetic.

[0011] (B) N-Acylmethyl Taurine Salt The cosmetic preparation according to the present invention comprises (B) an N-acylmethyl taurine salt. As component (B), an N-acyltaurine salt having an acyl group having 14 to 22 carbon atoms is preferred. Specific examples include N-stearoylmethyl taurine salt, N-palmitoylmethyl taurine salt, and N-myristoylmethyl taurine salt, with N-stearoylmethyl taurine salt being preferred. Preferred counter ions include sodium, potassium, triethanolamine, etc. Preferably, component (B) is sodium N-stearoylmethyl taurine.

[0012] The component (B) may be blended in one type or two or more types. The blending amount of the component (B) is preferably 0.005 to 2 mass%, more preferably 0.01 to 1 mass%, and more preferably 0.05 to 0.5 mass%, relative to the total amount of the cosmetic.

[0013] In order to further improve the stability of the cosmetic preparation, the molar ratio of component (A) to component (B) is preferably (A):(B)=1:0.05 to 1:1.5, and more preferably (A):(B)=1:0 to 1:1.

[0014] (C) Straight-Chain Higher Alcohol The cosmetic preparation according to the present invention comprises (C) a straight-chain higher alcohol. Component (C) is preferably a higher alcohol having 14 to 22 carbon atoms and a straight-chain saturated alkyl group. Examples of component (C) include myristyl alcohol, cetyl alcohol, stearyl alcohol, and behenyl alcohol. Component (C) preferably contains one or more of cetyl alcohol, stearyl alcohol, and behenyl alcohol.

[0015] The component (C) may be blended in one or more types. The blending amount of the component (C) is preferably 0.1 to 7 mass %, more preferably 0.2 to 5 mass %, and even more preferably 0.3 to 3 mass %, relative to the total amount of the cosmetic.

[0016] (D) Cyclic Carboxamide Derivative or Salt thereof The cosmetic material according to the present invention comprises (D) a cyclic carboxamide derivative represented by formula (1) or a salt thereof. In the formula, R １ represents a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, and X represents -CH ２ - or -N(R ２ )—, where R ２ is a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, and n is an integer of 1 to 3. The hydrocarbon group is not particularly limited and may be, for example, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, a cycloalkylalkyl group, a haloalkyl group, an alkoxyalkyl group, or an alkoxycarbonylalkyl group, and is preferably an alkyl group.

[0017] In a preferred embodiment, in formula (1), R １ is a hydroxyalkyl group having 1 to 3 carbon atoms, and X is -CH ２ - or -NH-, and n is 1. Specific examples of the cyclic carboxamide derivative represented by formula (1) include the following. The component (D) is most preferably 1-(2-hydroxyethyl)-2-imidazolidinone.

[0018] Component (D) may be a salt of the cyclic carboxamide derivative represented by formula (1). The type of salt is not particularly limited as long as it is pharmaceutically acceptable, and may be an inorganic salt or an organic salt. Examples of inorganic salts include hydrochloride, sulfate, phosphate, hydrobromide, sodium salt, potassium salt, magnesium salt, calcium salt, magnesium salt, and ammonium salt. Examples of organic salts include acetate, lactate, maleate, fumarate, tartrate, methanesulfonate, p-toluenesulfonate, triethanolamine salt, and amino acid salt.

[0019] The component (D) may be blended in one type or two or more types. The blending amount of the component (D) is preferably 0.1 to 5 mass %, more preferably 0.5 to 3.5 mass %, and even more preferably 1.5 to 3.5 mass %, relative to the total amount of the cosmetic.

[0020] (E) Oil The cosmetic composition according to the present invention comprises an oil (E). Examples of the component (E) include silicone oil, hydrocarbon oil, and ester oil. Note that in the present invention, the component (E) does not include the component (C).

[0021] Examples of silicone oils include linear polysiloxanes (e.g., dimethicone, diphenylsiloxyphenyltrimethicone, diphenylpolysiloxane, etc.), cyclic polysiloxanes (e.g., octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.), silicone resins that form a three-dimensional network structure, silicone rubber, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.), and acrylic silicones, with linear polysiloxanes being preferred.

[0022] Examples of hydrocarbon oils include isododecane, isohexadecane, isoparaffin, mineral oil (liquid paraffin), ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax, and hydrogenated polydecene.

[0023] Examples of ester oils include octyl octanoate, nonyl nonanoate, cetyl octanoate, isopropyl myristate (isopropyl myristate), octyldodecyl myristate, isopropyl palmitate, ethylhexyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, and isocetyl isostearate. Cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, tripropylene glycol pivalate, diisostearyl malate, glycerin di-2-heptylundecanoate, glycerin diisostearate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate Ingredients: propane, pentaerythrityl tetraethylhexanoate, glycerin tri-2-ethylhexanoate, glycerin trioctanoate, glycerin triisopalmitate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate-2-ethylhexyl palmitate, glycerin trimyristate, tri-2-heptylundecanoic acid glyceride, castor oil fatty acid methyl ester, oleyl oleate, acetoglyceride, 2-heptylundecanoic acid palmitate Examples of suitable oils include hydroxypropyl acrylate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, triethyl citrate, cetyl ethylhexanoate, and macadamia nut fatty acid phytosteryl.

[0024] The component (E) may be blended in one or more types. The blending amount of the component (E) is preferably 1 to 40 mass %, more preferably 5 to 20 mass %, based on the total amount of the cosmetic.

[0025] (F) Water The cosmetic according to the present invention comprises (F) water. As the water, water used in cosmetics, quasi-drugs, etc. can be used, such as purified water, ion-exchanged water, tap water, etc. The blending amount of water is preferably 65 to 85% by mass, more preferably 75 to 85% by mass, based on the total amount of the cosmetic according to the present invention.

[0026] The cosmetic according to the present invention may further comprise (G) a glycerin monoalkyl ester, a glycerin monoalkyl ether, a sorbitan monoalkyl ester, a sorbitan monoalkyl ester, a sterol, or a branched higher alcohol. Component (G) has the same function as component (C), but the inclusion of component (G) further improves stability. One or more types of component (G) may be blended. The blending amount of component (G) is preferably 3% by mass or less, more preferably 0.05 to 1.5% by mass, and even more preferably 0.1 to 0.8% by mass, based on the total amount of the cosmetic. Furthermore, the blending amount of component (G) is preferably 30% by mass or less, based on the total molar amount of components (C) and (G).

[0027] The cosmetic preparation according to the present invention may further comprise (H) an organic acid or a salt thereof. Examples of component (H) include citric acid, amino acids, ascorbic acid or derivatives thereof, salicylic acid or derivatives thereof, tranexamic acid or derivatives thereof, glycolic acid or derivatives thereof, pyrrolidonecarboxylic acid, sodium lactate, ellagic acid, glycyrrhizic acid, and edetacetic acid, and salts thereof may also be used. One or more types of component (H) may be blended. The blend amount of component (H) is preferably 0.01 to 2% by mass, more preferably 0.05 to 0.5% by mass.

[0028] In addition to the above-mentioned components, the cosmetic of the present invention can contain optional components commonly used in cosmetics and pharmaceuticals. Examples of optional components include moisturizers, lower alcohols, sequestering agents, neutralizing agents, pH adjusters, antioxidants, preservatives, drugs, UV absorbers, powder components, fragrances, etc., and one or more of these can be contained as long as the effects of the present invention are achieved. It is preferable that the cosmetic of the present invention does not contain a water-soluble thickener, or if it does contain one, it contains less than 0.1% by mass.

[0029] The formulation of the cosmetic according to the present invention is not particularly limited, but it is preferably in the form of an oil-in-water emulsion cosmetic. In an oil-in-water emulsion cosmetic, the external phase that first comes into contact with the skin is the aqueous phase, which gives the skin a fresh feeling and makes it possible to more effectively experience the effects of the present invention.

[0030] Examples of cosmetics according to the present invention include skin care cosmetics (e.g., lotion, emulsion, cream, serum, pack, mask, etc.), makeup cosmetics (e.g., foundation, makeup base, etc.), skin cleansers (e.g., face wash, makeup remover, etc.), sunscreen cosmetics, ointments, etc. Note that these forms are merely examples, and the cosmetics according to the present invention are not limited to these forms.

[0031] The cosmetic of the present invention can be produced by any conventional method without any particular limitation on the emulsification method.

[0032] The present invention will be described in detail based on the following examples, but the present invention is not limited to these examples. Unless otherwise specified, the contents are expressed in mass % relative to the total amount.

[0033] [Examples 1 to 3 and Comparative Example 1] Oil-in-water emulsion cosmetics of Examples 1 to 3 and Comparative Example 1 were prepared according to the formulations shown in Table 1.

[0034] [Evaluation of Usability] The cosmetics prepared above were applied to the skin by expert panels, and the "moisture" after application and the "moisture film feel" during application were scored according to the following criteria, with the average scores of the five expert panels being used for evaluation. The results obtained are shown in Table 1. In the present invention, "moisture film feel" refers to the feeling of a soft film gently covering and moisturizing the skin upon application. +2: More "moisture" / "moisture film feel" than the cosmetic of Comparative Example 1. +1: Slightly more "moisture" / "moisture film feel" than the cosmetic of Comparative Example 1. 0: The "moisture" / "moisture film feel" is comparable to that of the cosmetic of Comparative Example 1. -1: Slightly more "moisture" / "moisture film feel" than the cosmetic of Comparative Example 1. -2: More "moisture" / "moisture film feel" than the cosmetic of Comparative Example 1.

Claims

1. A cosmetic comprising: (A) polyoxyethylene fatty acid sorbitan; (B) an N-acylmethyl taurine salt; (C) a linear higher alcohol; (D) a cyclic carboxamide derivative represented by formula (1) or a salt thereof; (E) an oil; and (F) water. (In the formula, R １ represents a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom; X represents -CH ２ - or -N(R ２ )-, where R ２ represents a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, and n represents an integer of 1 to 3.

2. R １ is a hydroxyalkyl group having 1 to 3 carbon atoms, and X is -CH ２ The cosmetic preparation according to claim 1, wherein n is - or -NH-, and n is 1.

3. The cosmetic preparation according to claim 1 or 2, wherein component (D) is 1-(2-hydroxyethyl)-2-imidazolidinone.

4. The cosmetic preparation according to claim 1 or 2, further comprising (G) a glycerin monoalkyl ester, a glycerin monoalkyl ether, a sorbitan monoalkyl ester, a sorbitan monoalkyl ester, a sterol, or a branched higher alcohol.

5. The cosmetic preparation according to claim 1 or 2, further comprising (H) an organic acid or a salt thereof.

6. A cosmetic preparation according to claim 1 or 2, wherein component (A) is polyoxyethylene sorbitan monostearate.

7. A cosmetic preparation according to claim 1 or 2, wherein component (B) is sodium N-stearoyl methyl taurate.

8. The cosmetic according to claim 1 or 2, wherein the blending amount of component (D) is 0.1 to 5 mass % based on the total amount of the cosmetic.

9. The cosmetic preparation according to claim 1 or 2, wherein the molar ratio of component (A) to component (B) is (A):(B)=1:0.05 to 1:1.

5.

10. The cosmetic according to claim 1 or 2, which is an oil-in-water emulsion cosmetic.

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