Aerosol cosmetic

Abstract

To provide an aerosol cosmetic that resists dripping even when discharged from an aerosol container, leaves no sticky feeling on the skin after application, ensures excellent firmness and smooth blending, and achieves a transparent look after drying.SOLUTION: An aerosol cosmetic contains the following components (A), (B), (C) and (D): (A) nicotinamide of 2 to 10 mass%; (B) a water-soluble thickener; (C) polyhydric alcohol; (D) a stock solution containing water; and (E) carbon dioxide gas.SELECTED DRAWING: None

Description

[Technical field]

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

[0002] Skin problems such as dark circles under the eyes and dull skin are believed to be caused by reduced blood flow, and in order to improve these, cosmetics that utilize the effects of carbon dioxide gas and active ingredients are being considered. For example, Patent Document 1 describes that a liquid foamable composition (aerosol product) containing a skin care active agent such as nicotinamide, a surfactant, a fatty alcohol, and water can deliver up to three times the concentration of the skin care active agent. On the other hand, cosmetics containing nicotinamide have been investigated for the purpose of obtaining effects of preventing skin aging and improving rough skin. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2019-526586 Summary of the Invention [Problem to be solved by the invention]

[0004] When a large amount of nicotinamide is blended into a conventional aerosol cosmetic, there is a problem that the foam discharged from the aerosol container is uneven and prone to dripping. In addition, since nicotinamide is a powder, it may precipitate when the foam is discharged, and a white coating film may remain after drying. Furthermore, there is a problem that the skin becomes sticky after application, and the skin does not feel firm or familiar. [Means for solving the problem]

[0005] The present inventors have discovered that by blending nicotinamide, a water-soluble thickener, and a polyhydric alcohol in a concentrate, it is possible to obtain an aerosol cosmetic which does not drip when discharged from an aerosol container, does not leave the skin sticky after application, has excellent firmness and compatibility, and has a transparent appearance after drying.

[0006] The present invention comprises the following components (A), (B), (C) and (D): (A) 2 to 10% by mass of nicotinamide, (B) a water-soluble thickener, (C) polyhydric alcohol, (D)Water Concentrate containing (E) Carbon dioxide The present invention relates to an aerosol cosmetic composition comprising the above-mentioned component (A). Effect of the Invention

[0007] The aerosol cosmetic of the present invention does not drip when discharged from an aerosol container, does not leave the skin sticky after application, has excellent firmness and compatibility, does not cause nicotinamide precipitation after discharge, and has a transparent appearance after drying. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Nicotinamide, component (A), is an amide compound of nicotinic acid, soluble in water, ethanol, and glycerin, and is a known substance that is included in the vitamin B group. Nicotinamide may be extracted from natural products (such as rice bran) or synthesized by a known method. Specifically, those listed in the 15th revised edition of the Japanese Pharmacopoeia, 2008, may be used.

[0009] The content of component (A) in the concentrate is 2 to 10% by mass, preferably 2.5 to 9% by mass, and more preferably 3.5 to 7% by mass, from the viewpoints of improving the anti-aging effect of skin, improving the effect of improving rough skin, improving the firmness of the skin after application, reducing stickiness of the skin after application, improving the compatibility during application, suppressing precipitation of nicotinamide after discharge from an aerosol container, and making the appearance transparent after drying.

[0010] Examples of the polymeric thickener of component (B) used in the present invention include carboxyvinyl polymers which may be alkyl-modified, such as carboxyvinyl polymers and alkyl-modified carboxyvinyl polymers; polyacrylamide compounds such as polyacrylamide and (sodium acrylate / acryloyldimethyltaurine) copolymers; and polysaccharides such as xanthan gum, carrageenin, cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, and starch.

[0011] Of these, from the viewpoint of suppressing dripping when ejected from an aerosol container, it is preferable to contain one or more compounds selected from a carboxyvinyl polymer which may be alkyl-modified and a polyacrylamide compound, it is more preferable to contain one or more compounds selected from a carboxyvinyl polymer and an alkyl-modified carboxyvinyl polymer, and it is even more preferable to contain an alkyl-modified carboxyvinyl polymer. Among the carboxyvinyl polymers which may be alkyl-modified, the alkyl-modified carboxyvinyl polymer is preferably a copolymer of acrylic acid and an alkyl (meth)acrylate, more preferably a copolymer of acrylic acid and an alkyl (meth)acrylate having an alkyl group having 8 to 30 carbon atoms, and further preferably an acrylic acid / alkyl methacrylate copolymer. The carboxyvinyl polymer which may be alkyl-modified may, for example, be a commercially available product such as Synthalen K (manufactured by 3V Sigma), Carbopol 980, or Carbopol 981 (all manufactured by Lubrizol Advanced Materials). The alkyl-modified carboxyvinyl polymer may, for example, be a commercially available product such as acrylic acid / alkyl methacrylate copolymers such as Pemulen TR-1, Pemulen TR-2, Carbopol EDT2020, or Carbopol 1382 (all manufactured by Lubrizol Advanced Materials).

[0012] Component (B) may be used alone or in combination with two or more kinds. From the viewpoints of suppressing dripping when discharged from an aerosol container and reducing stickiness on the skin after application, the content in the concentrate is preferably 0.05 to 1 mass %, more preferably 0.1 to 0.6 mass %, and even more preferably 0.3 to 0.8 mass %.

[0013] The polyhydric alcohol of component (C) is a compound having two or more hydroxyl groups in the molecule, and may be any of those commonly used in cosmetic preparations. Examples of dihydric alcohols include polyethylene glycols such as polyethylene glycol 1540, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, 1,3-butylene glycol, and propanediol, and it is preferable to include one or more selected from polyethylene glycol 1540, dipropylene glycol, and 1,3-butylene glycol. Examples of trihydric alcohols include glycerin and trimethylolpropane, and it is preferable to use glycerin. Examples of the tetrahydric alcohol include diglycerin and erythritol, and it is preferable to include diglycerin. 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, and it is preferable to include polyoxyethylene methyl glucoside.

[0014] The polyhydric alcohol of component (C) preferably contains one or more selected from dihydric alcohols, trihydric alcohols, and tetrahydric alcohols, from the viewpoints of suppressing dripping when dispensed from an aerosol container, reducing stickiness on the skin after application, improving the firmness of the skin after application, and improving the feeling of compatibility when applied, and more preferably contains one or more selected from dihydric alcohols and tetrahydric alcohols. In addition, it is preferable that the composition contains one or more selected from polyethylene glycol 1540, dipropylene glycol, 1,3-butylene glycol, glycerin, and diglycerin, and it is more preferable that the composition contains one or more selected from polyethylene glycol 1540, dipropylene glycol, 1,3-butylene glycol, and diglycerin.

[0015] The polyhydric alcohol of component (C) can be used alone or in combination of two or more kinds. The content in the concentrate is preferably 9 to 30% by mass, more preferably 10 to 22% by mass, and even more preferably 12 to 15.5% by mass, from the viewpoints of reducing stickiness on the skin after application, improving the firmness of the skin after application, improving the compatibility during application, suppressing precipitation of nicotinamide after discharge from an aerosol container, and achieving a transparent appearance after drying.

[0016] In the present invention, the mass ratio (A) / (C) of component (A) to component (C) is preferably 0.05 to 3, more preferably 0.1 to 1, even more preferably 0.25 to 0.54, and even more preferably 0.33 to 0.43, from the viewpoints of suppressing dripping when discharged from an aerosol container, reducing stickiness of the skin after application, improving the firmness of the skin after application, improving the compatibility during application, suppressing precipitation of nicotinamide after discharged from an aerosol container, and making the appearance transparent after drying.

[0017] In the present invention, the mass ratio (B) / (C) of component (B) to component (C) is preferably 0.001 to 1, more preferably 0.005 to 0.8, even more preferably 0.01 to 0.5, and even more preferably 0.026 to 0.035, from the viewpoints of suppressing dripping when discharged from an aerosol container, reducing stickiness of the skin after application, improving the firmness of the skin after application, improving the compatibility during application, suppressing precipitation of nicotinamide after discharged from an aerosol container, and making the appearance transparent after drying.

[0018] The water of component (D) used in the present invention acts as a solvent for the concentrate and constitutes the balance of the other components. The content of water of component (D) in the concentrate is preferably 40 to 95% by mass, more preferably 50 to 85% by mass, and even more preferably 60 to 80% by mass, from the viewpoints of suppressing dripping when discharged from an aerosol container and improving the feeling of compatibility when applied.

[0019] In the aerosol cosmetic preparation of the present invention, the concentrate may further contain an oil component that is liquid at 25° C. The term “liquid” refers to having fluidity, and includes a paste state. The oil component that is liquid at 25° C. may be any oil that is commonly used in cosmetics, such as hydrocarbon oils, ester oils, ether oils, silicone oils, and higher alcohols.

[0020] More specifically, examples of the hydrocarbon oil include straight-chain or branched-chain hydrocarbon oils such as squalane, vegetable squalane, liquid paraffin, liquid isoparaffin, polybutene, hydrogenated polyisobutene, hydrogenated polydecene, and petrolatum. The hydrocarbon oil preferably contains one or more oils selected from squalane and liquid isoparaffin, and more preferably contains squalane.

[0021] 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, hexyl laurate, isopropyl myristate, octyldodecyl myristate, myristyl myristate, 2-hexyldecyl myristate, isopropyl palmitate, octyl palmitate, palmitate, and ethylhexyl hexanoate. Examples of the lactose-soluble oleate include 2-hexyldecyl butyl stearate, isocetyl stearate, isocetyl isostearate, decyl oleate, isodecyl benzoate, octyl methoxycinnamate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, octyldodecyl lactate, lanolin acetate, 2-ethylhexyl succinate, 2-hexyldecyl adipate, alkyl benzoate (C12 to C15), and octyldodecyl 12-stearoyl stearate. The monoester oil preferably contains one or more selected from isononyl isononanoate, isotridecyl isononanoate, and octyldodecyl myristate, and more preferably contains isotridecyl isononanoate.

[0022] 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.

[0023] 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 acid)glyceryl, trioleate, glyceryl tri-2-ethylhexanoate, glyceryl triisostearate, and vegetable oils such as olive oil and jojoba oil. The triester oil preferably contains one or more selected from the group consisting of caprylic / capric triglyceride, triglyceride 2-ethylhexanoate, and vegetable oils, and more preferably contains one or more selected from the group consisting of caprylic / capric triglyceride and vegetable oils.

[0024] 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.

[0025] The ether oils include dialkyl ethers, specifically, dihexyl ether, dicaprylyl ether, cetyl-1,3-dimethylbutyl ether, and the like.

[0026] Examples of silicone oils include volatile and non-volatile linear dimethylpolysiloxanes such as dimethylpolysiloxane (2cs), dimethylpolysiloxane (6cs), dimethylpolysiloxane (10cs), and dimethylpolysiloxane (50cs); branched siloxanes such as methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane; cyclic dimethylsiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane, crosslinked methylpolysiloxanes, reticular methylpolysiloxanes, methylphenylpolysiloxanes such as diphenylsiloxyphenyltrimethicone, and higher alcohol-modified organopolysiloxanes. The silicone oil preferably contains one or more selected from linear dimethylpolysiloxane and branched siloxane, more preferably contains linear dimethylpolysiloxane, and even more preferably contains non-volatile linear dimethylpolysiloxane.

[0027] Examples of higher alcohols include those having a straight or branched alkyl or alkenyl group having 10 to 24 carbon atoms, such as lauryl alcohol, myristyl alcohol, isocetyl alcohol, isostearyl alcohol, 2-octyldodecanol, and oleyl alcohol.

[0028] Of these, from the viewpoints of increasing the solubility of carbon dioxide gas, improving its permeability into the skin, and reducing stickiness on the skin after application, it is preferable to contain one or more oils selected from silicone oil, monoester oil, diester oil, and triester oil, it is more preferable to contain one or more oils selected from silicone oil and monoester oil, it is even more preferable to contain one or more oils selected from linear dimethylpolysiloxane and monoester oil, and it is even more preferable to contain one or more oils selected from non-volatile linear dimethylpolysiloxane and isotridecyl isononanoate.

[0029] The oil components that are liquid at 25°C can be used alone or in combination of two or more kinds. From the viewpoints of increasing the solubility of carbon dioxide gas, improving penetration into the skin, reducing stickiness on the skin after application, and improving the feeling of compatibility upon application, the content in the concentrate is preferably 0.1 to 20 mass%, more preferably 0.5 to 15 mass%, even more preferably 1 to 10 mass%, and even more preferably 3 to 8 mass%. From the viewpoint of reducing stickiness on the skin after application and improving the feeling of compatibility when applied, the content of oil components that are solid at 25° C. in the concentrate is preferably 1% by mass or less, more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less, and even more preferably substantially free. The oil components that are solid at 25° C. do not include preservatives such as parabens.

[0030] In the aerosol cosmetic of the present invention, the concentrate may further contain components used in ordinary cosmetics, such as surfactants, polymeric compounds other than component (B), ethanol, preservatives, antioxidants, colorants, pH adjusters, fragrances, ultraviolet absorbers, moisturizers other than component (C), blood circulation promoters, cooling agents, antiperspirants, germicides, whitening agents, anti-inflammatory agents, skin activators, etc.

[0031] In the aerosol cosmetic of the present invention, the concentrate is prepared by mixing the components (A) to (D) and other components. From the viewpoints of increasing the solubility of carbon dioxide gas, improving the skin permeability, and improving the feeling of familiarity when applied, the concentrate is preferably an oil-in-water emulsion cosmetic. From the viewpoint of a viscosity suitable for application to the skin, the undiluted solution preferably has a viscosity at 25° C. of 1000 to 10000 mPa·s, more preferably 2000 to 7000 mPa·s, and even more preferably 3500 to 7000 mPa·s. Here, the viscosity is measured using a BM viscometer (manufactured by Toki Sangyo Co., Ltd.) (rotor No. 3, 12 rpm, 1 minute, 25° C.).

[0032] The aerosol cosmetic of the present invention can be produced by filling a pressure-resistant container with the above-mentioned concentrate and (E) carbon dioxide gas. The form of the spray is preferably a foam type that is discharged in the form of a foam. The mass ratio of the concentrate to carbon dioxide gas is preferably 94:6 to 99.5:0.5, more preferably 95:5 to 99:1, and even more preferably 96.5:3.5 to 98.5:1.5, from the viewpoints of the solubility of carbon dioxide gas in the concentrate and foam generation.

[0033] The aerosol cosmetic of the present invention may contain a propellant used in ordinary aerosol cosmetics in addition to the carbon dioxide gas of component (E). Examples of propellants include liquefied petroleum gas and compressed gas. When a propellant other than carbon dioxide gas is contained, the content of carbon dioxide gas relative to the total amount of carbon dioxide gas and the propellant is preferably 90% by mass or more, more preferably 95% by mass or more, and even more preferably 98% by mass or more.

[0034] The aerosol cosmetic preparation of the present invention can be used as a cosmetic preparation without any particular limitations, but since carbon dioxide gas is absorbed transdermally and a higher blood circulation promoting effect than conventional preparations can be obtained, the aerosol cosmetic preparation is suitable as a skin cosmetic preparation used for improving skin color (brightness, dullness, etc.), improving moisturizing feeling, etc.

[0035] When the aerosol cosmetic of the present invention is applied to the skin and left for a certain period of time, the coating agent containing air bubbles forms a type of coating film, which enhances the effect of promoting blood circulation. Furthermore, it is also possible to penetrate the active ingredients in the cosmetic, such as nicotinamide, which is considered to be very beneficial. The aerosol cosmetic preparation of the present invention can be applied to the skin, left for a certain period of time, allowed to blend into the skin, wiped off, or washed off, depending on the situation.

[0036] The aerosol cosmetic preparation of the present invention can be produced by a conventional method, for example, by the following steps 1 to 4. Step 1: The aqueous phase components including (A) nicotinamide, (B) a water-soluble thickener, and (D) water are heated to 58 to 68°C and mixed. Step 2: If necessary, components other than component (C) are added to the aqueous phase obtained in step 1 and mixed. Step 3: (C) a polyhydric alcohol is added to and mixed with the liquid obtained in step 2, and the mixture is cooled to 15 to 30°C to obtain a stock solution. Step 4: The stock solution obtained in step 3 is filled into a pressure-resistant container and sealed, and then component (E) is filled therein by pressurization to obtain an aerosol cosmetic preparation. EXAMPLES

[0037] Examples 1 to 5 Aerosol cosmetics having the compositions shown in Table 1 were prepared, and the viscosity of the original solution at 25°C was measured, and the foam dripping (mm), skin firmness, skin compatibility, non-stickiness on the skin, and appearance after drying were evaluated. The results are also shown in Table 1.

[0038] (Manufacturing method) Step 1: Aqueous phase components including (A) nicotinamide, (B) a water-soluble thickener, and (D) water were heated to 58 to 68° C. and mixed. Step 2: To the aqueous phase obtained in step 1, oil phase components including an oil agent and a surfactant were added, and dispersed using a disperser. Step 3: (C) polyhydric alcohol was added to the liquid obtained in step 2, and the mixture was stirred. After cooling to 15 to 30°C, a flavoring and a preservative were added, and the mixture was stirred to obtain a stock solution. Step 4: The stock solution obtained in step 3 was filled into a pressure-resistant container and sealed, after which component (E) was added by pressurization to obtain an aerosol cosmetic. 2.2 parts by mass of carbon dioxide gas was mixed with 97.8 parts by mass of the stock solution. (Stock solution:carbon dioxide gas=97.8:2.2)

[0039] (Evaluation method) (1) Stock solution viscosity: 50 g of the stock solution was filled into a 50 mL glass container, and the viscosity was measured using a BM viscometer (manufactured by Toki Sangyo Co., Ltd.) (rotor No. 3, 12 rpm, 1 minute, 25° C.).

[0040] (2) Foam dripping: 0.5 g of each aerosol cosmetic was dispensed onto black artificial leather (manufactured by Okamoto Chemicals Co., Ltd.), stood vertically and left to stand for 2 minutes, after which the maximum distance traveled by the dispensed foam was measured with a ruler. In this case, the maximum distance is preferably 120 mm or less, more preferably 100 mm or less, and even more preferably 80 mm or less, from the viewpoint of ease of use when applied to the skin.

[0041] (3) Skin firmness: Five expert evaluators applied 0.25 g of each aerosol cosmetic onto the inside of the forearm, touched the skin immediately after spreading it, and performed a sensory evaluation of the firmness of the skin according to the following criteria. The results were shown as the total score given by the five expert evaluators. 5;It has a very firm feel. 4;It has a firm feel. 3: There is a slight feeling of firmness. 2;There is almost no firmness. 1: There is absolutely no firmness.

[0042] (4) Skin compatibility: Five expert evaluators applied 0.25 g of each aerosol cosmetic onto the inside of the forearm, touched the skin immediately after spreading, and performed a sensory evaluation of the skin compatibility according to the following criteria. The results were shown as the total score given by the five expert evaluators. 5;It feels very familiar to the skin. 4;It feels familiar to the skin. 3: Feels somewhat compatible with the skin. 2;It barely blends in with the skin. 1: It doesn't feel like it blends in with the skin at all.

[0043] (5) No stickiness on the skin: Five expert evaluators applied 0.25 g of each aerosol cosmetic to the inside of the forearm, touched the skin immediately after spreading it, and performed a sensory evaluation of the lack of stickiness of the skin according to the following criteria. The results were shown as the total score given by the five expert evaluators. 5;Not sticky at all. 4;Non-sticky. 3: Slightly sticky. 2;It feels sticky. 1: Quite sticky.

[0044] (6) Appearance after drying: 0.05 g of each aerosol cosmetic was dispensed onto black artificial leather (manufactured by Okamoto Chemicals Co., Ltd.), and left to stand at 25° C. for 18 hours to dry. Thereafter, the appearance was evaluated according to the following criteria. 4: The discharged liquid is not dry and is colorless and transparent. 3: A thin white coating appears on the surface of the discharged liquid. 2: Part of the discharged liquid has solidified and turned white. 1: The discharged liquid has completely solidified and turned white.

[0045] [Table 1]

[0046] Prescription Example 1 A concentrate of Formulation Example 1 was prepared in the same manner as in Examples 1 to 5. This concentrate and carbon dioxide gas were filled into a pressure-resistant container in a ratio of 97.8:2.2 to obtain an aerosol cosmetic preparation. The viscosity of the concentrate was 5500 mPa·s. The obtained aerosol cosmetic composition does not drip when discharged from an aerosol container, does not leave the skin sticky after application, provides excellent firmness and affinity, and has a transparent appearance after drying.

[0047] (component) Nicotinamide 5.0 (mass%) Acrylic acid / alkyl methacrylate copolymer (PEMULEN TR-1) 0.45 1,3-Butylene glycol 6.0 Dipropylene glycol 4.0 Diglycerin 1.5 Glycerin 2.0 Polyethylene glycol 1540 1.0 Isotridecyl isononanoate 3.0 Methylpolysiloxane (50CS) 4.5 POE(60) hydrogenated castor oil 0.5 POE methylpolysiloxane copolymer 0.5 Methyl parahydroxybenzoate 0.15 Phenoxyethanol 0.4 Potassium hydroxide solution (A) 0.65 Potassium dihydrogen phosphate 0.18 Disodium edetate 0.05 Silica 0.1 Yuzu extract 0.5 Carrot extract 0.25 Seaweed extract (1) 0.1 Retinol 0.05 Ectoine 0.035 Fragrance 0.1 Purified water Balance Total stock solution: 100

Claims

1. The following components (A), (B), (C), and (D): (A) Nicotinamide 2-10% by mass, (B) Water-soluble thickener, (C) Polyhydric alcohols, (D) Water The undiluted solution containing, (E) Carbon dioxide Aerosol cosmetic containing [a specific ingredient].

2. The aerosol cosmetic composition according to claim 1, wherein the mass ratio (A) / (C) of component (A) to component (C) is 0.05 to 3.

3. The aerosol cosmetic composition according to claim 1 or 2, wherein the mass ratio (B) / (C) of component (B) to component (C) is 0.001 to 1.

4. The aerosol cosmetic composition according to claim 1 or 2, wherein the content of component (C) in the undiluted solution is 9 to 30% by mass.

5. The aerosol cosmetic composition according to claim 1 or 2, wherein the viscosity of the stock solution at 25°C is 1,000 to 10,000 mPa·s.