Oil-in-water type cosmetic

Abstract

[Problem] To provide an oil-in-water type cosmetic which contains nicotinamide and which has less stickiness and has improved usability. [Solution] This oil-in-water type cosmetic comprises: (A) nicotinic acid or a derivative thereof; (B) a nonionic surfactant having an HLB of 9-18; (C) an acrylamide-based polymer; (D) a carboxyvinyl polymer; and (E) a cellulose derivative. The percentage content of the component (A) is 1-10 mass% with respect to the total amount of the oil-in-water type cosmetic.

Description

Oil-in-water cosmetics

[0001] The present invention relates to an oil-in-water cosmetic preparation. Specifically, the present invention relates to an oil-in-water cosmetic preparation containing nicotinic acid or a derivative thereof.

[0002] It has been known that cosmetics containing nicotinamide tend to be sticky (for example, Patent Document 1), and there is a demand for cosmetics that reduce stickiness. In addition, cosmetics are generally required to be easily absorbed into the skin, and there is a demand for cosmetics containing nicotinamide that have improved usability, such as smoothness and easy absorption into the skin, while reducing stickiness.

[0003] JP 2021-172610 A

[0004] The present inventors have surprisingly found that in an oil-in-water cosmetic comprising (A) nicotinic acid or a derivative thereof, (B) a nonionic surfactant having an HLB of 9 to 18, (C) an acrylamide polymer, (D) a carboxyvinyl polymer, and (E) a cellulose derivative, by adjusting the content of component (A) within a specific range, stickiness can be reduced while improving usability. The present invention is based on these findings.

[0005] According to the present invention, the following inventions are provided. [1] An oil-in-water cosmetic comprising (A) nicotinic acid or a derivative thereof, (B) a nonionic surfactant having an HLB of 9 to 18, (C) an acrylamide polymer, (D) a carboxyvinyl polymer, and (E) a cellulose derivative, wherein the content of component (A) is 1 to 10 mass% relative to the total amount of the oil-in-water cosmetic. [2] The cosmetic according to [1], wherein component (C) is a polymer containing 2-acrylamido-2-methylsulfonic acid or a salt thereof in its structure. [3] The cosmetic according to [1], wherein component (C) is a polymer containing (i) 2-acrylamido-2-methylsulfonic acid and (ii) vinylpyrrolidone, (meth)acrylic acid amide, sodium (meth)acrylate, hydroxyethyl (meth)acrylate, and POE(C １０－１８) alkyl ether (meth)acrylates. [4] The oil-in-water cosmetic according to any one of [1] to [3], wherein the content of component (C) is 0.05 to 2 mass% relative to the total amount of the oil-in-water cosmetic. [5] The oil-in-water cosmetic according to any one of [1] to [4], wherein the content of component (D) is 0.01 to 1.5 mass% relative to the total amount of the oil-in-water cosmetic. [6] The oil-in-water cosmetic according to any one of [1] to [5], wherein the ratio C / D of the total mass of component (C) based on the total mass of component (D) is 1 to 10. [7] The oil-in-water cosmetic according to any one of [1] to [6], wherein component (E) is selected from the group consisting of alkyl cellulose, carboxyalkyl cellulose, and hydroxyalkyl cellulose. [8] The oil-in-water cosmetic according to any one of [1] to [7], wherein the content of component (E) is 0.01 to 0.25% by mass relative to the total amount of the oil-in-water cosmetic. [9] The oil-in-water cosmetic according to any one of [1] to [8], wherein the ratio B / E of the total mass of component (B) based on the total mass of component (E) is 4 to 100.

[10] The oil-in-water cosmetic according to any one of [1] to [9], further comprising (F) a polar oil, wherein the content of component (F) is 5% by mass or more relative to the total amount of the oil-in-water cosmetic.

[11] The oil-in-water cosmetic according to any one of [1] to

[10] , wherein the viscosity measured at 30°C with a Brookfield viscometer is 2,000 to 80,000 mPa s.

[0006] According to the present invention, it is possible to provide an oil-in-water cosmetic containing nicotinamide that is less sticky and has improved usability. Specific Description of the Invention

[0007] The oil-in-water cosmetic preparation according to the present invention (hereinafter sometimes simply referred to as "cosmetic preparation") is an oil-in-water cosmetic preparation comprising (A) nicotinic acid or a derivative thereof, (B) a nonionic surfactant having an HLB of 9 to 18, (C) an acrylamide polymer, (D) a carboxyvinyl polymer, and (E) a cellulose derivative. Each of these components, as well as further components that can be blended, will be described below.

[0008] (A) Nicotinic Acid or Derivatives Thereof The cosmetic preparation of the present invention comprises (A) nicotinic acid or a derivative thereof (hereinafter, sometimes referred to as component (A)). Examples of derivatives of nicotinic acid include nicotinamide, benzyl nicotinate, tocopherol nicotinate, and β-butoxy nicotinate, with nicotinamide being particularly preferred. Here, nicotinamide, also known as niacinamide, is a derivative of nicotinic acid and an amide compound of nicotinic acid (vitamin B3 / niacin). Nicotinamide is a water-soluble vitamin and a known substance that is a member of the B vitamin family; it may be extracted from natural sources (such as rice bran) or synthesized by known methods.

[0009] In the cosmetic of the present invention, the content of component (A) is 1 to 10% by mass, preferably 2 to 8% by mass, more preferably 3 to 7% by mass, and even more preferably 4 to 6% by mass, relative to the total amount of the cosmetic.

[0010] (B) Nonionic surfactant with an HLB value of 9 to 18 The oil-in-water cosmetic of the present invention comprises (B) a nonionic surfactant with an HLB value of 9 to 18 (hereinafter, sometimes referred to as component (B)). Here, the HLB (Hydrophile-Lipophile Balance) can be determined by the Griffin method. In the present invention, the HLB of component (B) is 9 to 18, preferably 10 to 18.

[0011] Component (B) is preferably selected from the group consisting of polyether-modified silicone, polyoxyethylene alkyl ether, polyoxyethylene polyhydric alcohol fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene sterol, polyoxyethylene-polyoxyalkylene copolymer, polyglycerin fatty acid ester, and sorbitan fatty acid ester.

[0012] Examples of polyether-modified silicones include PEG-12 dimethicone, PEG-10 dimethicone, and PEG-11 methyl ether dimethicone. Examples of polyoxyethylene alkyl ethers include Beheneth-10, Beheneth-20, and Beheneth-30. Examples of polyoxyethylene polyhydric alcohol fatty acid esters include PEG-20 glyceryl isostearate, PEG-30 isostearate, PEG-40 glyceryl isostearate, PEG-50 glyceryl isostearate, and PEG-60 glyceryl isostearate. Examples of polyoxyethylene hydrogenated castor oils include PEG-20 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-60 hydrogenated castor oil, and PEG-100 hydrogenated castor oil. Examples of polyoxyethylene sterols include PEG-30 phytosterol and PPG-7 / PEG-30 phytosterol. Examples of polyoxyethylene-polyoxyalkylene copolymers include PPG-2-deceth-12 and PPG-13 decyltetradeceth-24. Examples of polyglycerin fatty acid esters include polyglyceryl oleate, polyglyceryl laurate, polyglyceryl myristate, polyglyceryl stearate, and polyglyceryl isostearate. Examples of sorbitan fatty acid esters include sorbitan laurate, polysorbate 20, polysorbate 60, and polysorbate 80.

[0013] Component (B) is preferably selected from the group consisting of PEG-12 dimethicone, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-80 hydrogenated castor oil, PEG-100 hydrogenated castor oil, PEG-30 phytosterol, PPG-7 / PEG-30 phytosterol, PPG-2-deceth-12, and PPG-13 decyltetradeceth-24, with PEG-60 hydrogenated castor oil being particularly preferred.

[0014] The component (B) is preferably contained in an amount of 0.1% by mass or more, more preferably 0.1 to 5% by mass, even more preferably 0.3 to 2% by mass, and particularly preferably 0.5 to 1.5% by mass, relative to the total mass of the oil-in-water cosmetic.

[0015] (C) Acrylamide-Based Polymer The cosmetic preparation according to the present invention comprises an acrylamide-based polymer (C). A typical example of the acrylamide-based polymer (C) (hereinafter sometimes referred to as component (C)) is a polymer containing 2-acrylamido-2-methylsulfonic acid (also known as "acryloyldimethyltaurate"; hereinafter sometimes referred to as AMPS) or a salt thereof in its structure. Component (C) is a polymer containing (i) 2-acrylamido-2-methylsulfonic acid and (ii) vinylpyrrolidone, (meth)acrylic acid amide, sodium (meth)acrylate, hydroxyethyl (meth)acrylate, POE(C １０－１８ Preferably, the copolymer is a copolymer of the above-mentioned acrylic acid copolymer and one or more monomers selected from the group consisting of alkyl ether (meth)acrylates. This copolymer may contain other monomers as long as the effects of the present invention are not impaired. POE stands for polyoxyethylene.

[0016] Examples of such polymers include AMPS (salt) homopolymer, AMPS (salt) / vinylpyrrolidone copolymer, AMPS (salt) / dimethyl(meth)acrylamide copolymer, AMPS (salt) / (meth)acrylic acid amide copolymer, AMPS (salt) / sodium (meth)acrylate copolymer, AMPS (salt) / POE (C10-18) alkyl ether (meth)acrylate copolymer, etc. In the present invention, among others, AMPS (salt) / vinylpyrrolidone copolymer, AMPS / POE (C １０－１８ ) alkyl ether (meth)acrylate copolymer, AMPS (salt) / sodium (meth)acrylate copolymer, etc. are preferably used. １０－１８ ) As the alkyl ether (meth)acrylate, POE behenyl ether methacrylate, POE stearyl ether methacrylate, etc. are preferably used. These copolymers may be crosslinked or may not be crosslinked.

[0017] Specific preferred examples of the component (C) include (ammonium acryloyldimethyltaurate / vinylpyrrolidone) copolymer, (ammonium acryloyldimethyltaurate / beheneth-25 methacrylate) crosspolymer, and (ammonium acryloyldimethyltaurate / steareth-25 methacrylate) crosspolymer.

[0018] In the oil-in-water cosmetic according to the present invention, the content of component (C) is 0.05 to 2 mass%, preferably 0.1 to 1.5 mass%, more preferably 0.2 to 1 mass%, and even more preferably 0.3 to 0.8 mass%, based on the total mass of the cosmetic.

[0019] (D) Carboxyvinyl Polymer The cosmetic preparation according to the present invention comprises (D) a carboxyvinyl polymer. (D) Carboxyvinyl polymer (hereinafter sometimes referred to as component (D)) is a polymer having acrylic acid or methacrylic acid as its main chain and having carboxyl groups. Commercially available carboxyvinyl polymers include Akpec HV-501E, HV-505E, HV-505ED, HV-801EG, HV-801EG-300, HV-805EG, HV-805EG-300, and SW-705E (all manufactured by Sumitomo Seika Chemicals Co., Ltd.), Hiviswako 103, Hiviswako 104, and Hiviswako 105 (all manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.), Carbopol (registered trademark) 934 polymer, 940 polymer, 941 polymer, 980 polymer, 981 polymer, 2984 polymer, 5984 polymer, ETD2050 polymer, Silk100 polymer, Stylr2.0 polymer, Ultrez10 polymer, and Ultrez30 polymer (all manufactured by Lubrizol Corporation).

[0020] The content of component (D) is 0.01 to 1.5% by mass, preferably 0.05 to 1% by mass, and more preferably 0.1 to 0.5% by mass, relative to the total amount of the oil-in-water cosmetic.

[0021] In the cosmetic composition according to the present invention, the content of component (C) is preferably equal to or greater than the content of component (D). The ratio C / D of the total mass of component (C) based on the total mass of component (D) is preferably 1 to 10, and more preferably 2 to 10.

[0022] (E) Cellulose Derivative The cosmetic preparation according to the present invention comprises (E) a cellulose derivative. The (E) cellulose derivative (hereinafter sometimes referred to as component (E)) is a polymer having a cellulose skeleton in which the hydroxyl groups have been modified (substituted) with an alkyl group, a carboxyalkyl group, or a hydroxyalkyl group. The cellulose derivative is one or more selected from the group consisting of alkyl cellulose, carboxyalkyl cellulose, and hydroxyalkyl cellulose. Examples of alkyl cellulose include methyl cellulose, ethyl cellulose, and propyl cellulose. Examples of carboxyalkyl cellulose include carboxymethyl cellulose. Examples of hydroxyalkyl cellulose include hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, and hydroxybutyl cellulose.

[0023] The content of component (E) is 0.01 to 0.5% by mass, preferably 0.02 to 0.3% by mass, and more preferably 0.03 to 0.15% by mass, relative to the total amount of the cosmetic. Furthermore, the content ratio B / E of component (B) to component (E) is preferably 4 to 100. Furthermore, the content ratio B / E is more preferably 5 or greater.

[0024] By including component (E), the cosmetic according to the present invention can further improve the skin compatibility, richness, and film thickness of the cosmetic.

[0025] The cosmetic composition according to the present invention may further comprise (F) a polar oil. Examples of (F) polar oils include ester oils, higher fatty acids, and higher aliphatic alcohols.

[0026] Examples of ester oils include octyl octanoate, nonyl nonanoate, cetyl octanoate, 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, isocetyl isostearate, and cholesterol 12-hydroxystearate. ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, tripropylene glycol pivalate, PPG-3 dipivalate, diisostearyl malate, glyceryl di-2-heptylundecanoate, glyceryl diisostearate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, tetra-2-ethylhexanoate Pentaerythritol xanthate, glyceryl tri-2-ethylhexanoate (triethylhexanoin), glyceryl trioctanoate, glyceryl 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-heptylundecyl palmitate, Examples of suitable oleic acid surfactants include diisobutyl adipate, di(phytosteryl / octyldodecyl) lauroyl glutamate, 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, macadamia nut fatty acid phytosteryl, and tocopheryl acetate.Furthermore, examples of ester oils that can be used include castor oil, palm oil, hydrogenated palm oil, shea butter, avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, camellia oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, Chinese ginger oil, jojoba oil, and germ oil.

[0027] Examples of higher fatty acids include saturated or unsaturated fatty acids having 12 or more carbon atoms, such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tall acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).

[0028] Examples of higher alcohols include monoalcohols having 12 or more carbon atoms, such as straight-chain alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, etc.), and branched-chain alcohols (e.g., lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, etc.).

[0029] The component (F) is preferably contained in an amount of 5% by mass or more, more preferably 5 to 30% by mass, and even more preferably 10 to 25% by mass, relative to the total amount of the cosmetic.

[0030] (G) Water The cosmetic according to the present invention comprises (G) 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 water content is preferably 5 to 80% by mass, more preferably 30 to 70% by mass, relative to the total mass of the cosmetic according to the present invention.

[0031] The viscosity of the cosmetic according to the present invention, measured using a B-type rotational viscometer at 30° C., is preferably 2,000 to 80,000 mPa·s. By achieving such a viscosity, it is possible to improve the rich feeling when applied to the skin and the thickness of the film felt after application.

[0032] According to the present invention, it is possible to provide an oil-in-water cosmetic containing nicotinamide that has reduced stickiness and improved usability. In particular, the oil-in-water cosmetic of the present invention can provide an oil-in-water cosmetic that has reduced stickiness and improved smoothness, compatibility with the skin, richness upon application, and film thickness felt after application.

[0033] In addition to the above-mentioned components, the oil-in-water cosmetic composition of the present invention can contain any component typically used in cosmetics or pharmaceuticals. Such optional components include, for example, drugs other than component (A), oils other than component (F), moisturizers, film-forming agents, antioxidants, neutralizing agents, chelating agents, fragrances, thickeners, powder components, colorants, stabilizers, UV absorbers, and extracts. As long as the effects of the present invention are achieved, one or more optional components can be blended into the oil-in-water cosmetic composition of the present disclosure.

[0034] Examples of drugs that can be contained in the oil-in-water cosmetic composition according to the present invention include vitamin A and its derivatives, vitamin B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 and its derivatives, vitamin B12, vitamin B15 and its derivatives (excluding nicotinamide), vitamin C such as L-ascorbic acid, vitamin D, vitamin E such as α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate, vitamin H, pantothenic acid, pantethine, and other vitamins; γ-oryzanol, allantoin, glycyrrhizic acid (salt), glycyrrhetinic acid and its derivatives, tranexamic acid and its derivatives (tranexamic acid derivatives include tranexamic acid dimers (e.g., trans-4-(trans-aminomethylcyclohexanecarbonyl)aminomethylcyclohexanecarboxylic acid hydrochloride, etc.), esters of tranexamic acid and hydroquinone (e.g., trans-4-aminomethylcyclohexanecarboxylic acid 4'-hydroxyphenyl ester, etc.), esters of tranexamic acid and gentisic acid (e.g., 2-(trans-4-aminomethylcyclohexylcarbonyloxy)-5-hydroxybenzoic acid, and salts thereof, etc.), amides of tranexamic acid (for example, trans-4-aminomethylcyclohexanecarboxylic acid methylamide and salts thereof, trans-4-(P-methoxybenzoyl)aminomethylcyclohexanecarboxylic acid and salts thereof, trans-4-guanidinomethylcyclohexanecarboxylic acid and salts thereof, etc.), saponins such as hinokitiol, bisabolol, eucalptone, thymol, inositol, saikosaponin, carrot saponin, loofah saponin, and soapberry saponin, various drugs such as pantothenyl ethyl ether, ethinyl estradiol, tranexamic acid, arbutin, cepharanthine, and placenta extract.

[0035] Examples of oils other than component (F) include silicone oils such as methylpolysiloxane, and hydrocarbon oils.

[0036] Any conventionally known moisturizing agent can be used as the moisturizing agent, and examples of such moisturizing agents include polyhydric alcohols and glycol ethers, more specifically, ethylene glycol, diethylene glycol, dipropylene glycol, 1,3-butylene glycol, glycerin, hexamethylene glycol, isoprene glycol, polyethylene glycol, hyaluronic acid, xylitol, sorbitol, maltitol, and diglycerin alkyleneoxy adducts.

[0037] Any conventionally known coating agent can be used as the coating agent, and examples of such coating agents include polyvinyl alcohol.

[0038] The neutralizing agent may be a commonly used acid or alkali, such as hydrochloric acid, potassium hydroxide, or sodium hydroxide.

[0039] Examples of preservatives include phenoxyethanol, chlorphenesin, benzoic acid, salicylic acid, sorbic acid, alkyl parahydroxybenzoate, hexachlorophene, ε-polylysine, and the like.

[0040] Chelating agents are used to sequester metal ions and the like in cosmetics, and examples thereof include sodium hexametaphosphate and sodium salt of ethylenediaminetetraacetic acid.

[0041] The cosmetic composition of the present invention is not limited to any particular formulation, but is preferably in the form of a relatively viscous gel, cream, or the like. The cosmetic composition of the present invention can be, for example, a skin care cream, a makeup base, a sunscreen cream, or the like. The cosmetic composition of the present invention can be produced according to conventional methods.

[0042] 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.

[0043] [Examples 1 to 4, Comparative Examples 1 to 4] Cosmetics for each Example and Comparative Example were prepared at the content rates shown in Table 1. In Comparative Examples 1 and 2, polyethylene glycol 4000 was used instead of component (E) in the present invention. In Comparative Examples 3 and 4, xanthan gum, a water-soluble thickener, was used instead of component (E). In Comparative Example 1, even when nicotinamide was blended, a relatively good lack of stickiness and smooth feeling was obtained, so the usability of Examples 1 to 4 and Comparative Examples 2 to 4 was evaluated using Comparative Example 1 as the standard (STD).

[0044] Furthermore, the usability of the cosmetics was evaluated as follows. Expert panels evaluated non-stickiness, smoothness, richness, skin compatibility, and film thickness, with Comparative Example 1 as the standard (STD). The number of expert panels was three. For each evaluation item, a usability higher than the standard was marked +, and a usability lower than the standard was marked -. Furthermore, for each item, Comparative Example 1 was marked 0 (standard), and scores were given in increments of 0.5 within the range of +5 to -5. For example, for non-stickiness, Comparative Example 1 was marked as the standard (STD), and a less sticky feeling was marked +, and a more sticky feeling was marked -. Furthermore, for film thickness, Comparative Example 1 was marked as the standard (STD), and a thicker feeling was marked +, and a less thick feeling was marked -. The average of the evaluation values ​​of each panel was rounded to two decimal places.

[0045] In Table 1, "richness" refers to the moist and rich feeling when the cosmetic preparation is first applied, and "film thickness" refers to the strong feeling of protection that the cosmetic preparation remains on the skin after application.

[0046]

[0047] Formulation Examples 1 to 10 Formulation examples of oil-in-water cosmetic compositions according to the present invention are shown in the following table, where the values ​​in the table represent mass %.

Claims

1. An oil-in-water cosmetic comprising: (A) nicotinic acid or a derivative thereof; (B) a nonionic surfactant having an HLB of 9 to 18; (C) an acrylamide polymer; (D) a carboxyvinyl polymer; and (E) a cellulose derivative; wherein the content of component (A) is 1 to 10% by mass relative to the total amount of the oil-in-water cosmetic.

2. The cosmetic preparation according to claim 1, wherein component (C) is a polymer containing 2-acrylamido-2-methylsulfonic acid or a salt thereof in its structure.

3. The component (C) is (i) 2-acrylamido-2-methylsulfonic acid, and (ii) vinylpyrrolidone, (meth)acrylic acid amide, sodium (meth)acrylate, hydroxyethyl (meth)acrylate, and POE (C １０－１８ 3. The oil-in-water cosmetic according to claim 1, wherein the copolymer is a copolymer of one or more monomers selected from the group consisting of alkyl ether (meth)acrylates and 4. The oil-in-water cosmetic according to claim 1 or 2, wherein the content of component (C) is 0.05 to 2% by mass relative to the total amount of the oil-in-water cosmetic.

5. The oil-in-water cosmetic according to claim 1 or 2, wherein the content of component (D) is 0.01 to 1.5 mass% relative to the total amount of the oil-in-water cosmetic.

6. The oil-in-water cosmetic according to claim 1 or 2, wherein the ratio C / D of the total mass of component (C) based on the total mass of component (D) is 1 to 10.

7. The oil-in-water cosmetic according to claim 1 or 2, wherein component (E) is selected from the group consisting of alkyl cellulose, carboxyalkyl cellulose, and hydroxyalkyl cellulose.

8. The oil-in-water cosmetic according to claim 1 or 2, wherein the content of component (E) is 0.01 to 0.25% by mass relative to the total amount of the oil-in-water cosmetic.

9. The oil-in-water cosmetic according to claim 1 or 2, wherein the ratio B / E of the total mass of component (B) based on the total mass of component (E) is 4 to 100.

10. The oil-in-water cosmetic according to claim 1 or 2, further comprising (F) a polar oil, wherein the content of component (F) is 5% by mass or more relative to the total amount of the oil-in-water cosmetic.

11. The oil-in-water cosmetic according to claim 1 or 2, which has a viscosity of 2,000 to 80,000 mPa·s when measured at 30°C with a Brookfield viscometer.

Images