Multilayer liquid cosmetics

Abstract

To provide multilayer liquid cosmetics that easily disperse uniformly when shaken, clearly show interfacial separation when stationary, allow for easy re-separation, blend smoothly into the skin upon application, provide sustained moisture post-application, and leave no sticky residue behind.SOLUTION: Multilayer liquid cosmetics contain following components (A), (B), and (C): (A) 5-50 mass% of an oil solution that is liquid at 25°C, (B) water, and (C) pyrrolidone sodium carboxylate.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a multi-layered liquid cosmetic composition. [Background technology]

[0002] Multi-layered cosmetic preparations are known which separate into multiple layers when left to stand and which must be shaken to uniformly disperse before application to the skin. For example, Patent Document 1 describes that a multi-layered cosmetic preparation containing a polyglycerol alkylphenyl ether compound, a water-soluble salt, an oily substance that is liquid at room temperature, and water exhibits good mixing and emulsification when shaken and rapid separation when left to stand. Patent Document 2 describes a multi-layer cosmetic composition that contains an oil layer containing natural oil and a polymer selected from polysaccharides and sodium hyaluronate, and does not contain a surfactant, which can be emulsified by stirring and is suitable for topical application. Patent Document 3 describes that a multi-layered cosmetic containing mannosylerythritol lipid, a polyhydric alcohol, and a liquid oil with an IOB value of 0 to 0.18 becomes uniformly dispersed when shaken, and has an excellent aesthetic appearance and a good feel when used. Patent Document 4 describes a two-layer separation cosmetic composition that contains a liquid hydrocarbon oil at 25°C, ethanol, and hydroxyethyl cellulose, but does not contain a surfactant, and that is compatible with the skin, provides a moisturizing feeling, is not sticky, and has good re-separation properties after shaking. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 63-27409 [Patent Document 2] Special Publication No. 2018-510885 [Patent Document 3] JP 2017-226603 A [Patent Document 4] JP 2020-40916 A Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional multi-layered cosmetic compositions have not been fully satisfactory in terms of compatibility with the skin upon application or moisturizing feeling on the skin after application. Furthermore, multi-layered cosmetic preparations are required to maintain a uniformly dispersed state for a certain period of time during use, and to completely separate into multiple layers after use in the same state as before use. However, after shaking, the oil layer and the water layer do not easily separate, and there have been problems with re-separation. [Means for solving the problem]

[0005] The present inventors have discovered that by using a combination of specific amounts of a liquid oil and sodium pyrrolidone carboxylate, it is possible to obtain a multi-layered liquid cosmetic which easily becomes uniformly dispersed when shaken, which clearly separates the interfaces of the layers when left to stand, which blends well with the skin when applied, and which leaves the skin with an excellent moisturizing feel after application.

[0006] The present invention comprises the following components (A), (B) and (C): (A) 5 to 50 mass% of an oil agent that is liquid at 25°C, (B) Water; (C) Sodium pyrrolidone carboxylate The present invention relates to a multi-layered liquid cosmetic composition comprising the above-mentioned components. Effect of the Invention

[0007] The multi-layered liquid cosmetic of the present invention easily becomes uniformly dispersed when shaken, and when left to stand, the interfaces of the layers are clearly separated, exhibiting excellent re-separation properties. It also has excellent compatibility with the skin when applied, provides a moist feeling to the skin after application, and does not leave the skin sticky after application. In the present invention, compatibility with the skin refers to a state in which the applied cosmetic has penetrated into the skin and is no longer present on the skin, giving the feeling that skin care is complete. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The component (A) used in the present invention is an oil that is liquid at 25°C. The term "liquid" refers to something that has fluidity, and includes a paste-like state. The oil of component (A) is one that is commonly used in cosmetics, and examples of the oil include (a1) non-polar oil and (a2) polar oil. Examples of the non-polar oil of component (a1) include hydrocarbon oils and silicone oils.

[0009] Examples of the hydrocarbon oil include squalane, liquid paraffin, liquid isoparaffin, light liquid isoparaffin, and heavy liquid isoparaffin. The hydrocarbon oil preferably contains one or more selected from squalane, liquid paraffin, liquid isoparaffin, and light liquid isoparaffin, more preferably contains one or more selected from squalane, liquid paraffin, and liquid isoparaffin, even more preferably contains one or more selected from squalane and liquid paraffin, and even more preferably contains squalane.

[0010] Examples of silicone oils include volatile and non-volatile linear dimethylpolysiloxanes such as dimethylpolysiloxane (1cs), dimethylpolysiloxane (1.5cs), dimethylpolysiloxane (2cs), and dimethylpolysiloxane (6cs); branched siloxanes such as methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane; cyclic dimethylsiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; methylphenylpolysiloxanes such as diphenylsiloxyphenyltrimethicone, and higher alcohol-modified organopolysiloxanes. The silicone oil preferably contains one or more selected from linear dimethylpolysiloxanes and branched siloxanes, more preferably contains linear dimethylpolysiloxane, and even more preferably contains non-volatile linear dimethylpolysiloxane.

[0011] As component (a1), a hydrocarbon oil is preferred. Component (a1) can be used alone or in combination of two or more types. From the viewpoints of improving re-separation after shaking, improving compatibility with the skin upon application, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application, the content is preferably 1 to 15 mass %, more preferably 3 to 12 mass %, and even more preferably 5 to 10 mass % of the total composition.

[0012] Examples of the polar oil of component (a2) include ester oil, ether oil, and higher fatty acid. Ester oils include monoester oils, diester oils, triester oils and tetraester oils. Examples of monoester oils include monoesters of aliphatic or aromatic monocarboxylic or dicarboxylic acids having 2 to 24 carbon atoms. Specific examples include cetyl 2-ethylhexanoate, cetyl octanoate, isononyl isononanoate, isotridecyl isononanoate, isostearyl isostearate, hexyl laurate, isopropyl myristate, octyldodecyl myristate, myristyl myristate, 2-hexyldecyl myristate, palladium myristate, and the like. Examples of the isopropyl oleate, octyl palmitate, 2-hexyldecyl palmitate, butyl stearate, isocetyl stearate, isocetyl isostearate, decyl oleate, isodecyl benzoate, octyl methoxycinnamate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, 2-ethylhexyl succinate, 2-hexyldecyl adipate, and alkyl benzoates (C12 to C15). The monoester oil preferably contains one or more selected from isononyl isononanoate, isotridecyl isononanoate, isostearyl isostearate, and octyldodecyl myristate, and more preferably contains one or more selected from isotridecyl isononanoate, isostearyl isostearate, and octyldodecyl myristate.

[0013] Examples of diester oils include diesters of dicarboxylic acids having 3 to 18 carbon atoms and difatty acid esters of polyhydric alcohols. Specific examples include propylene glycol dicaprylate, neopentyl glycol dicaprate, glycol distearate, propylene glycol diisostearate, glyceryl diisostearate, glyceryl monomyristate monoisostearate, glycerin di-2-heptylundecanoate, di-2-ethylhexyl succinate, diisopropyl sebacate, diisostearyl malate, ethylene glycol di-2-ethylhexanoate, diisobutyl adipate, di-2-heptylundecyl adipate, and di-2-ethylhexyl sebacate. The diester oil preferably contains one or more selected from propylene glycol dicaprylate and neopentyl glycol dicaprate, and more preferably contains neopentyl glycol dicaprate.

[0014] Triester oils include tri-fatty acid esters of trivalent or higher polyhydric alcohols, and specific examples thereof include glyceryl trimyristate, glyceryl triisopalmitate, glyceryl tri-2-heptylundecanoate, trimethylolpropane triethylhexanoate, trimethylolpropane trioctanoate, tri(caprylic / capric)glyceryl, trioleate, glyceryl tri-2-ethylhexanoate, and glyceryl triisostearate, as well as vegetable oils such as olive oil, jojoba oil, macadamia nut oil, meadowfoam oil, castor oil, safflower oil, sunflower oil, avocado oil, canola oil, apricot kernel oil, rice germ oil, and rice bran oil. The triester oil preferably contains one or more selected from caprylic / capric triglyceride, glyceryl tri-2-ethylhexanoate, glyceryl triisostearate, and vegetable oils, more preferably one or more selected from caprylic / capric triglyceride, glyceryl triisostearate, and vegetable oils, even more preferably vegetable oils, still more preferably one or more selected from olive oil and jojoba oil, and especially preferably olive oil. The ester oil preferably contains one or more selected from diester oils and triester oils, and more preferably contains triester oils.

[0015] Examples of tetraester oils include tetra fatty acid esters of polyhydric alcohols having 4 or more valences, and specific examples thereof include pentaerythritol tetra(behenic acid / benzoic acid / ethylhexanoic acid), pentaerythritol tetraethylhexanoate, pentaerythritol tetraoctanoate, and pentaerythritol tetra-2-ethylhexanoate.

[0016] The ether oils include dialkyl ethers, specifically, dihexyl ether, dicaprylyl ether, cetyl-1,3-dimethylbutyl ether, and the like.

[0017] Examples of higher fatty acids include oleic acid, isostearic acid, and undecylenic acid.

[0018] Component (a2) preferably contains an ester oil, more preferably contains one or more selected from monoester oil and triester oil, and more preferably contains one or more selected from monoester oil and vegetable oil, and also preferably contains both monoester oil and vegetable oil. Component (a2) can be used alone or in combination of two or more types, and the content thereof is preferably 1 to 30 mass% of the total composition, more preferably 3 to 20 mass%, even more preferably 7 to 17 mass%, and even more preferably 10 to 15 mass%, from the viewpoints of improving re-separation after shaking, improving compatibility with the skin upon application, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application.

[0019] As component (A), it is preferable to use a combination of components (a1) and (a2). In this case, the mass ratio (a1) / (a2) of component (a1) to component (a2) is preferably 0.1 to 3, more preferably 0.17 to 1.72, and even more preferably 0.33 to 1, from the viewpoints of improving re-separation properties after shaking, improving compatibility with the skin upon application, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application.

[0020] Component (A) can be used alone or in combination of two or more types, and the content is 5 to 50 mass% of the total composition, preferably 8 to 45 mass%, more preferably 15 to 35 mass%, and even more preferably 18 to 30 mass%, from the viewpoints of improving re-separation after shaking, improving compatibility with the skin when applied, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application.

[0021] In the present invention, the content of water in component (B) is preferably 25 to 65 mass% of the total composition, more preferably 30 to 60 mass%, and even more preferably 40 to 55 mass%, from the viewpoints of improving re-separation properties after shaking, improving compatibility with the skin when applied, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application.

[0022] In the present invention, the content of sodium pyrrolidone carboxylate as component (C) is preferably 0.1 to 4.5 mass% of the total composition, more preferably 1.1 to 4 mass%, even more preferably 1.2 to 3 mass%, and even more preferably 1.5 to 2.5 mass%, from the viewpoints of improving re-separation properties after shaking, improving compatibility with the skin upon application, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application.

[0023] The multi-layered liquid cosmetic of the present invention may further contain (D) a polyhydric alcohol, which can improve compatibility with the skin upon application and the moist feeling of the skin after application. The polyhydric alcohol is a compound having two or more hydroxyl groups in the molecule, and any of those commonly used in cosmetics may be used. Examples of dihydric alcohols include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, 1,3-butylene glycol, and 1,3-propanediol. Examples of trihydric alcohols include glycerin and trimethylolpropane. Examples of tetrahydric alcohols include diglycerin and erythritol. Examples of polyhydric alcohols having a valence of five or more include polyglycerins such as triglycerin; sugars and sugar alcohols such as glucose, maltose, maltose, sucrose, xylitol, sorbitol, malbitol, polyoxyethylene methyl glucoside, polyoxyethylene ethyl glucoside, and polyoxyethylene propylene glucoside.

[0024] From the viewpoints of improving re-separation properties after shaking, improving compatibility with the skin when applied, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application, component (D) preferably contains one or more selected from dihydric alcohols, trihydric alcohols, and sugar alcohols, more preferably contains one or more selected from dihydric alcohols and sugar alcohols, and even more preferably contains one or more selected from dipropylene glycol, 1,3-butylene glycol, 1,3-propanediol, maltose, and sorbitol.

[0025] Component (D) can be used alone or in combination of two or more types. From the viewpoints of improving re-separation after shaking, improving compatibility with the skin upon application, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application, the content is preferably 10 to 50 mass% of the total composition, more preferably 15 to 40 mass%, and even more preferably 20 to 30 mass%.

[0026] The multi-layered liquid cosmetic of the present invention may contain, in addition to the above-mentioned components, components used in ordinary cosmetics, such as oily components other than the above-mentioned components, surfactants, moisturizing agents other than polyhydric alcohols, ultraviolet absorbers, ultraviolet scattering agents, thickeners, sequestering agents, antioxidants, antibacterial agents, preservatives, antiperspirants, medicines, powders, coloring agents, fragrances, animal and plant extracts, etc. These components are not limited to their respective uses as individual agents, and may be diverted for other uses depending on the purpose, for example, an antiperspirant may be used as a fragrance, or may be used in combination with other uses, for example, to exert the effects of both an antiperspirant and a fragrance.

[0027] In the multi-layered liquid cosmetic of the present invention, from the viewpoints of excellent re-separation properties after shaking, improved compatibility with the skin upon application, improved moisturized feeling of the skin after application, and reduced stickiness of the skin after application, the content of surfactant in the total composition is preferably less than 0.5% by mass, more preferably less than 0.1% by mass, even more preferably less than 0.01% by mass, and even more preferably substantially free of surfactant.

[0028] In the multi-layered liquid cosmetic of the present invention, from the viewpoints of improving re-separation properties after shaking, improving compatibility with the skin when applied, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application, the ethanol content in the total composition is preferably 5% by mass or less, more preferably 1% by mass or less, even more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less, and it is particularly preferable that it is substantially free of ethanol.

[0029] The multi-layered liquid cosmetic of the present invention can be produced by appropriately mixing the desired components in a conventional manner, for example by mixing all the oily components to prepare an oily layer, mixing all the aqueous components to prepare an aqueous layer, and then mixing the oily layer and the aqueous layer in a desired ratio.

[0030] In the multi-layered liquid cosmetic of the present invention, from the viewpoints of improving re-separation properties after shaking, improving compatibility with the skin when applied, improving the moist feeling of the skin after application, and reducing stickiness of the skin after application, the mass ratio of all oil layer components to all aqueous layer components, (oil layer) / (aqueous layer), is preferably from 0.01 to 1.45, more preferably from 0.05 to 1.22, even more preferably from 0.1 to 1, and even more preferably from 0.15 to 0.45.

[0031] The multi-layered liquid cosmetic of the present invention is a liquid, and when left to stand, the viscosity of each layer at 25°C is preferably 1 mPa·s or more, more preferably 3 mPa·s or more, and even more preferably 5 mPa·s or more, and is preferably 500 mPa·s or less, more preferably 300 mPa·s or less, and even more preferably 100 mPa·s or less. In the present invention, the viscosity is measured using a Brookfield viscometer (Vismetron viscometer: Model VS-A1 (manufactured by Shibaura Systems), rotor No. 1, 30 rpm, 30 seconds).

[0032] The multi-layered liquid cosmetic of the present invention is a cosmetic that maintains a multi-layered separated state of two or more layers, having an oil layer containing at least component (A) and an aqueous layer containing at least components (B) and (C) that are mutually incompatible when left to stand, and can be made into a uniformly dispersed state by shaking when used, and gradually returns to its original multi-layered separated state. Examples include a two-layered cosmetic consisting of an oil layer-aqueous layer, and a three-layered cosmetic consisting of an oil layer-oil layer-aqueous layer.

[0033] The multi-layered liquid cosmetic of the present invention has at least an oil layer and an aqueous layer, and in this case, when left to stand, the oil layer is present on the opening side (upper side) of the container, and the aqueous layer is present on the bottom side (lower side) of the container.

[0034] The multi-layered liquid cosmetic composition of the present invention can be used by application to the skin, preferably the skin excluding the scalp, and more preferably the face, body, hands, feet, etc., from the viewpoint of improving compatibility with the skin upon application and improving the moist feeling of the skin after application, and is suitable as a skin cosmetic composition for warmth retention, anti-aging, whitening, pack, massage, sunscreen, makeup base, foundation, lip cream, etc. EXAMPLES

[0035] Examples 1 to 7, Comparative Examples 1 to 3 A two-layer liquid cosmetic composition having the composition shown in Table 1 was prepared and evaluated for re-separation, compatibility with the skin upon application, moisturizing feeling of the skin after application, and non-stickiness of the skin after application. The results are also shown in Table 1.

[0036] (Manufacturing method) An oily component containing component (A) was mixed to prepare an oily layer, and an aqueous component containing components (B), (C) and (D) was mixed to prepare an aqueous layer. The oily layer and the aqueous layer were mixed to produce a two-layer liquid cosmetic.

[0037] (Evaluation method) (1)Reseparability: 30 g of each cosmetic was placed in a transparent container (PS-6K: manufactured by Tokyo Glass Co., Ltd.), shaken 10 times, and the state of separation after 10 minutes was visually observed and evaluated according to the following criteria. The results were repeated three times and the total score was shown. 5: The interface is clearly separated. 4: Separation is slightly unclear at the interface. 3: Separation is somewhat unclear at the interface. 2: An interface is present but is unclear. 1: Does not separate.

[0038] (2) Skin compatibility upon application: Three panelists specializing in cosmetic evaluation shook each cosmetic product, applied 0.3 g to the back of the hand, and evaluated its compatibility with the skin according to the following criteria. The results were shown as the total score of the three panelists. The term "skin compatibility" refers to a state in which the applied cosmetic has penetrated the skin and is no longer present on the skin, giving the impression that skin care is complete. 5: Blends well with the skin. 4: Blends well with the skin. 3: Blends slightly with the skin. 2: It doesn't blend well with the skin. 1: It clearly doesn't blend in with the skin.

[0039] (3) Moisturizing feeling on skin after application: Three panelists specializing in cosmetic evaluation shook each cosmetic product, applied 0.3 g to the back of the hand, and then evaluated the moisturizing feeling of the skin according to the following criteria. The results were shown as the total score of the three panelists. 5: Feels very moisturized. 4: It feels moisturized. 3: It feels moisturized. 2: It doesn't feel very moisturizing. 1: It doesn't feel noticeably moisturizing.

[0040] (4) No stickiness on the skin after application: Three panelists specializing in cosmetic evaluation shook each cosmetic product, applied 0.3 g to the back of their hand, and evaluated the lack of stickiness of the skin according to the following criteria. The results are shown as the total score given by the three panelists. 5: Not noticeably sticky. 4: Does not feel sticky. 3: Doesn't feel too sticky. 2: Feels quite sticky. 1: It clearly feels sticky.

[0041] [Table 1]

[0042] *1 Sugar squalane: NIKKOL Sugar Squalane (manufactured by Nippon Surfactant Co., Ltd.), *2 Liquid paraffin: CARNATION (manufactured by Sonneborn, LLC), *3 Isononyl isononanoate: Salacos 99 (manufactured by Nisshin Oillio Group Co., Ltd.), *4 Olive oil: Cropure OL-LQ-(JP) (manufactured by Croda Japan Co., Ltd.), *5 Isostearyl isostearate: Crodamol ISIS-LQ-(JP) (manufactured by Croda Japan Co., Ltd.), *6 Octyldodecyl myristate: MOD (manufactured by Shin-Ei Chemical Co., Ltd.), *7 Sodium DL-pyrrolidone carboxylate: AJIDEW N-50 (Ajinomoto Brazil), *8 1,3-propanediol: ZEMEA SELECT propanediol (manufactured by DuPont Tate & Lyle Bio Products, LLC), *9 Dipropylene glycol: DPG-RF (ADEKA), *10 1,3-butylene glycol: 1,3-butylene glycol (manufactured by Daicel Corporation), *11 Maltitol: Maltitol content of Amalti Syrup (manufactured by Mitsubishi Corporation Life Sciences) (maltitol 75% by mass, water 25% by mass), *12 Sorbitol: Sorbitol content of Sorbitol D-70 (manufactured by Mitsubishi Corporation Life Sciences) (sorbitol 70% by mass, water 30% by mass)

[0043] Formulation example 1 (two-layered anti-aging serum): (Component) Content (mass%) Sugar squalane (*1) 5 Jojoba Oil 3 Olive oil(*4) 2 Macadamia nut oil 2 Isononyl isononanoate (*3) 2.5 Glyceryl triisostearate 3 Isostearyl isostearate (*5) 5 1,3-Propanediol(*8) 2 Maltitol (*11) 1.5 Sorbitol (*12) 2.1 Concentrated glycerin 10 Sodium DL-pyrrolidone carboxylate (*7) 2 Nicotinamide 1 Perilla extract 0.2 Chinpi Extract 0.1 Shell Ginger Leaf Extract 0.1 Camellia seed extract 0.1 Okra extract 0.05 Geranium extract 0.1 Saxifrage extract 0.2 Distilled water remaining Total 100

[0044] Formulation example 2 (two-layered moisturizing serum): (Component) Content (mass%) Sugar squalane (*1) 7 Olive oil(*4) 2 2-Hexyldecyl myristate 2.5 Glyceryl triisostearate 3 Octyldodecyl myristate (*6) 3 Isostearyl isostearate (*5) 3 1,3-Propanediol(*8) 9 Maltitol (*11) 3.75 Sorbitol (*12) 3.5 Dipropylene glycol (*9) 7 1,3-Butylene glycol(*8) 4 Sodium DL-pyrrolidone carboxylate (*7) 2 Nicotinamide 0.2 Perilla extract 0.5 Honeysuckle Extract 0.1 Angelica extract 0.1 Water-soluble licorice extract 0.1 Job's tears extract 0.3 Suginori extract 0.2 Distilled water remaining Total 100

[0045] Prescription example 3 (two-layered massage formula): (Component) Content (mass%) Sugar squalane (*1) 10 Liquid paraffin (*2) 3 Olive oil(*4) 2 Caprylic / capric triglyceride 2 Glyceryl triisostearate 1 Isotridecyl isononanoate 3 Isostearyl isostearate (*5) 3 1,3-Propanediol(*8) 5 Maltitol (*11) 3.75 Sorbitol (*12) 3.5 Dipropylene glycol (*9) 10 1,3-Butylene glycol(*8) 5 Sodium DL-pyrrolidone carboxylate (*7) 2 Nicotinamide 0.01 Perilla extract 0.1 Aloe extract 0.1 Hibiscus Extract 0.1 Yeast extract 0.1 Sakura extract 0.3 Glycine 0.02 Distilled water remaining Total 100

[0046] All of the multi-layered liquid cosmetics of Formulation Examples 1 to 3 easily become uniformly dispersed when shaken, and when left to stand, the interfaces of each layer clearly separate, exhibiting excellent re-separation properties, excellent compatibility with the skin when applied, excellent moisturizing sensation on the skin after application, and no stickiness on the skin after application.

Claims

1. The following components (A), (B) and (C): (A) 5 to 50% by mass of an oil agent that is liquid at 25°C, (B) Water, (C) Sodium pyrrolidone carboxylate A multi-layer liquid cosmetic containing the same.

2. The multi-layer liquid cosmetic according to Claim 1, wherein the component (A) contains at least (a1) a non-polar oil and (a2) a polar oil.

3. The multi-layer liquid cosmetic according to Claim 2, wherein the mass ratio (a1) / (a2) of the component (a1) to the component (a2) is 0.1 to 3.

4. The multi-layer liquid cosmetic according to any one of Claims 1 to 3, wherein the content of the component (C) is 0.1 to 4.5% by mass.

5. The multi-layer liquid cosmetic according to any one of Claims 1 to 3, further containing (D) a polyhydric alcohol.