Aerosol cosmetics and their usage

Abstract

To provide an aerosol cosmetic that can improve the compatibility between the cosmetic composition and water, and that can enhance the user experience. [Solution] The aerosol cosmetic composition of the present invention comprises an aerosol container, a cosmetic composition filled in the aerosol container, and a propellant filled in the aerosol container, wherein the cosmetic composition contains a hydrocarbon oil (component A) and a polyhydric alcohol (component B), the cosmetic composition does not contain water (component C) or contains water (component C) at a concentration of 40.0% by mass or less, the content of component A in 100% by mass of the cosmetic composition is 50.0% by mass or more and 92.0% by mass or less, and the content of component B in 100% by mass of the cosmetic composition is 1.0% by mass or more and 10.0% by mass or less, and after the cosmetic composition is discharged from the aerosol container, the discharged cosmetic composition is diluted with water before use.

Description

Technical Field

[0001] The present invention relates to aerosol cosmetics. The present invention also relates to a method for using the aerosol cosmetics.

Background Art

[0002] There is known a shower cosmetic cartridge that is disposed and used in a shower device provided in a bathroom or a washroom. As described in Patent Documents 1 and 2, the shower cosmetic cartridge is generally filled with a solid cosmetic composition. In the shower cosmetic cartridge, the solid cosmetic composition is eluted into water (cold water or hot water) flowing through the shower device, and a mixed liquid of the cosmetic composition and water is sprayed from a shower head and applied to the skin of a user.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a conventional shower cosmetic cartridge including a solid cosmetic composition, the amount of elution of the solid cosmetic composition varies depending on the water temperature and the water pressure of the shower, so that the amount of the composition discharged from the shower head cannot be sufficiently controlled. Therefore, it is difficult to enhance the use feeling (the feeling that the cosmetic composition remains on the skin) in a conventional shower cosmetic cartridge including a solid cosmetic composition.

[0005] If the desired amount of cosmetic composition can be injected into the shower device only at the time of use, and the entire amount of the injected cosmetic composition can be discharged from the shower head, it is thought that this would contribute to an improved user experience. On the other hand, when using a cosmetic composition injected into a shower device, it is preferable that the cosmetic composition has high compatibility with water.

[0006] Another possible product form for cosmetics is one in which a highly concentrated cosmetic composition is filled into a container, and the user dilutes the cosmetic composition with water before use. Cosmetics with this product form are thought to contribute to reducing environmental impact. However, for cosmetics with this product form, it is preferable that the cosmetic composition has high compatibility with water and provides a high level of effectiveness.

[0007] The object of the present invention is to provide an aerosol cosmetic that can improve the compatibility between the cosmetic composition and water, and that can enhance the user experience. Furthermore, the present invention also aims to provide a method for using the above-mentioned aerosol cosmetic. [Means for solving the problem]

[0008] The present invention provides an aerosol cosmetic comprising an aerosol container, a cosmetic composition filled in the aerosol container, and a propellant filled in the aerosol container, wherein the cosmetic composition contains the following component (A) and the following component (B), the cosmetic composition does not contain the following component (C), or contains the following component (C) in an amount of 40.0% by mass or less, the content of component (A) is 50.0% by mass or more and 92.0% by mass or less per 100% by mass of the cosmetic composition, and the content of component (B) is 1.0% by mass or more and 10.0% by mass or less per 100% by mass of the cosmetic composition, and after the cosmetic composition is discharged from the aerosol container, the discharged cosmetic composition is diluted with water before use.

[0009] Ingredient (A): Hydrocarbon oil Ingredient (B): Polyhydric alcohol Ingredient (C): Water

[0010] In the aerosol cosmetic composition of the present invention, it is preferable that component (B) contains the following component (B1) and component (B2).

[0011] Ingredient (B1): Glycerin Ingredient (B2): Dipropylene glycol

[0012] In the aerosol cosmetic composition of the present invention, it is preferable that the mass ratio of the content of component (B1) to the content of component (B2) in the cosmetic composition is 2.0 or more and 20.0 or less.

[0013] In the aerosol cosmetic composition of the present invention, it is preferable that the cosmetic composition contains the following component (D).

[0014] Ingredient (D): Nonionic surfactant

[0015] In the aerosol cosmetic composition of the present invention, it is preferable that component (D) contains a nonionic surfactant selected from the group consisting of the following components (D1) and (D2).

[0016] Ingredient (D1): Polyglycerol fatty acid ester with an average number of added moles of glycerol of 4 or more and 12 or less. Component (D2): Polyoxyethylene glycerol fatty acid ester having an average number of added moles of oxyethylene of 4 or more and 12 or less.

[0017] In the aerosol cosmetic composition of the present invention, it is preferable that the cosmetic composition is an emulsified cosmetic composition.

[0018] In the aerosol cosmetic composition of the present invention, it is preferable that the viscosity of the cosmetic composition at 25°C is 5000 mPa·s or more.

[0019] In the aerosol cosmetic composition of the present invention, it is preferable that the internal pressure of the aerosol container is 0.30 MPa or higher and 0.95 MPa or lower at 25°C.

[0020] In the aerosol cosmetic of the present invention, the aerosol container includes an outer container and an inner container. The inner container is housed in the outer container, the cosmetic composition is filled in the inner container, and the propellant is preferably filled in the space between the outer container and the inner container.

[0021] In the aerosol cosmetic of the present invention, the propellant is preferably filled in the space between the outer container and the inner container so that the internal pressure at 25 °C is 0.30 MPa or more and 0.95 MPa or less.

[0022] In the aerosol cosmetic of the present invention, the inner container is preferably a bag.

[0023] The present invention provides a method for using the above-described aerosol cosmetic, which includes a step of discharging the cosmetic composition from the aerosol container and a step of diluting the discharged cosmetic composition with water.

Advantages of the Invention

[0024] In the aerosol cosmetic of the present invention, the compatibility between the cosmetic composition and water can be enhanced, and the user experience can be improved.

Embodiments for Carrying Out the Invention

[0025] Hereinafter, the present invention will be described in detail.

[0026] The aerosol cosmetic of the present invention includes an aerosol container, a cosmetic composition filled in the aerosol container, and a propellant filled in the aerosol container. In the aerosol cosmetic of the present invention, the cosmetic composition contains a hydrocarbon oil and a polyhydric alcohol. In the aerosol cosmetic of the present invention, the cosmetic composition does not contain water or contains water at 40.0% by mass or less.

[0027] In this specification, the above-mentioned "hydrocarbon oil" may be referred to as "component (A)", the above-mentioned "polyhydric alcohol" may be referred to as "component (B)", and the above-mentioned "water" may be referred to as "component (C)".

[0028] In the aerosol cosmetic composition of the present invention, the content of component (A) is 50.0% by mass or more and 92.0% by mass or less in 100% by mass of the above cosmetic composition, and the content of component (B) is 1.0% by mass or more and 10.0% by mass or less.

[0029] The aerosol cosmetic composition of the present invention is used by dispensing the cosmetic composition from the aerosol container and then diluting the dispensed cosmetic composition with water.

[0030] The aerosol cosmetic composition of the present invention has the above-described configuration, which improves the compatibility between the cosmetic composition and water, and also enhances the user experience.

[0031] In the aerosol cosmetic composition of the present invention, the cosmetic composition may contain a nonionic surfactant.

[0032] In this specification, the above-mentioned "nonionic surfactant" may be referred to as "component (D)".

[0033] The above components, for example, component (A), component (B), component (D), and other components, may be used individually or in combination of two or more types.

[0034] The above aerosol cosmetic can be constructed to allow the cosmetic composition to be dispensed from the aerosol container in either an upright or inverted position, as needed. Furthermore, the above aerosol cosmetic offers good operability. Moreover, the above aerosol cosmetic can dispense the cosmetic composition from the aerosol container only while the stem is pressed down (for example, while the spray button is pressed). Therefore, the above aerosol cosmetic allows for the easy dispensing of a desired amount of cosmetic composition from the aerosol container, resulting in excellent usability.

[0035] In this specification, "aerosol cosmetic" means a cosmetic having a mechanism that dispenses its contents (cosmetic composition) using the pressure of a propellant (such as liquefied gas or compressed gas). In this specification, "aerosol container" means a container used to enable the above mechanism to function. The above-mentioned "aerosol cosmetic" also includes, for example, a double-walled container having an outer container and an inner container (for example, an outer container and an inner bag attached to a valve), in which the contents are filled in the inner container and a propellant is filled between the outer container and the inner container. The above-mentioned "aerosol cosmetic" also includes a cosmetic in which only the contents are dispensed when used (no propellant is dispensed).

[0036] [Cosmetic composition (undiluted solution)] (Component (A)) Component (A) is a hydrocarbon oil. Using component (A) can enhance the user experience. Furthermore, using component (A) can improve the stability of the cosmetic composition. Additionally, using component (A) can provide a moisturizing effect. Component (A) may be used alone, or two or more types may be used in combination.

[0037] Examples of component (A) include α-olefin oligomer, petrolatum, isoparaffin, light isoparaffin, light liquid isoparaffin, squalane, liquid isoparaffin, liquid paraffin (mineral oil), hydrogenated polyisobutene, hydrogenated (tetradecenyl / methylpentadecene), isododecane, microcrystalline wax, paraffin wax, polyethylene wax, and synthetic wax (Fischer-Tropsch wax, etc.).

[0038] From the perspective of enhancing the user experience and improving the stability of the cosmetic composition, the content of component (A) in 100% by mass of the above cosmetic composition is 50.0% by mass or more and 92.0% by mass or less.

[0039] In the above cosmetic composition, the content of component (A) is preferably 60.0% by mass or more, preferably 85.0% by mass or less, and more preferably 80.0% by mass or less. When the content of component (A) is above the lower limit and below the upper limit, the user experience can be further enhanced. In addition, the stability of the cosmetic composition can be further enhanced.

[0040] (Component (B)) Component (B) is a polyhydric alcohol. By using component (B), the affinity between the cosmetic composition and water (cold or warm water) can be improved. Furthermore, by using component (B), the stability of the cosmetic composition can be improved. Component (B) may be used alone, or two or more may be used in combination.

[0041] Components (B) include glycerin, diglycerin, 1,3-butylene glycol, propylene glycol, dipropylene glycol, 1,2-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, polyethylene glycol, and sugar alcohols. Examples of sugar alcohols include glucose, maltose, sorbitol, maltitol, trehalose, erythritol, arabitol, ribitol, xylitol, galactitol, mannitol, and sucrose.

[0042] Component (B) preferably contains glycerin and dipropylene glycol. In this case, the affinity between the cosmetic composition and water (cold or warm water) can be further enhanced. Furthermore, the stability of the cosmetic composition can be further enhanced.

[0043] In this specification, the above-mentioned "glycerin" may be referred to as "component (B1)," and the above-mentioned "dipropylene glycol" may be referred to as "component (B2)."

[0044] Therefore, it is preferable that component (B) contains component (B1) and component (B2). The above cosmetic composition is preferably composed of component (B1) and component (B2).

[0045] In the above cosmetic composition, the mass ratio of the content of component (B1) to the content of component (B2) (content of component (B1) / content of component (B2)) is preferably 2.0 or more, more preferably 4.0 or more, preferably 20.0 or less, more preferably 10.0 or less, and even more preferably 8.0 or less. When the above mass ratio (content of component (B1) / content of component (B2)) is above the lower limit and below the upper limit, the compatibility between the cosmetic composition and water (cold water or warm water) can be further enhanced. Furthermore, the stability of the cosmetic composition can be further enhanced.

[0046] From the viewpoint of improving the compatibility of the above cosmetic composition with water (cold or warm water) and improving the stability of the cosmetic composition, the content of component (B) in 100% by mass of the above cosmetic composition is 1.0% by mass or more and 10.0% by mass or less.

[0047] In 100% by mass of the above cosmetic composition, the content of component (B) is preferably 2.0% by mass or more, more preferably 3.0% by mass or more, even more preferably 4.0% by mass or more, preferably 9.0% by mass or less, and more preferably 8.0% by mass or less. When the content of component (B) is above the lower limit and below the upper limit, the compatibility between the cosmetic composition and water (cold water or warm water) can be further enhanced. Furthermore, the stability of the cosmetic composition can be further enhanced.

[0048] In 100% by mass of the above cosmetic composition, the total content of component (B1) and component (B2) is preferably 1.0% by mass or more, more preferably 2.0% by mass or more, even more preferably 3.0% by mass or more, particularly preferably 4.0% by mass or more, preferably 10.0% by mass or less, more preferably 9.0% by mass or less, and even more preferably 8.0% by mass or less. When the above total is above the lower limit and below the upper limit, the compatibility between the cosmetic composition and water (cold water or warm water) can be further enhanced. Furthermore, the stability of the cosmetic composition can be further enhanced.

[0049] (Component (C)) Component (C) is water. The above cosmetic composition may or may not contain component (C). Component (C) is preferably purified water.

[0050] From the perspective of enhancing the user experience, when the above cosmetic composition contains ingredient (C), the content of ingredient (C) in 100% by mass of the above cosmetic composition is 40.0% by mass or less.

[0051] When the above cosmetic composition contains component (C), the content of component (C) in 100% by mass of the above cosmetic composition is preferably 30.0% by mass or less, more preferably 20.0% by mass or less. When the content of component (C) is below the above upper limit, a more concentrated cosmetic composition can be made, and the feeling of use can be further enhanced. The content of component (C) in 100% by mass of the above cosmetic composition may be 0% by mass (not contained). From the viewpoint of improving the stability of the above cosmetic composition, the content of component (C) in 100% by mass of the above cosmetic composition may be 1.0% by mass or more, or 3.0% by mass or more.

[0052] (Component (D)) Component (D) is a nonionic surfactant. The cosmetic composition preferably contains component (D). By using component (D), the cosmetic composition can be made into an emulsified cosmetic composition, and its emulsification stability can be improved. Component (D) may be used alone, or two or more may be used in combination.

[0053] Component (D) includes glycerin fatty acid esters (monoglycerin fatty acid esters), polyglycerin fatty acid esters, polyoxyethylene glycerin fatty acid esters, (poly)oxyalkylene fatty acid esters, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyalkylene alkyl ethers, polyoxyethylene hydrogenated castor oil, polyoxyethylene castor oil, polyoxyethylene lanolin, polyoxyalkylene alkylphenols, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene alkylphenyl formaldehyde condensates, polyoxyethylene sterols and their derivatives, polyoxyethylene beeswax derivatives, and sugar esters.

[0054] Examples of the above-mentioned glycerin fatty acid esters (monoglycerin fatty acid esters) include glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl monoisostearate, glyceryl monobehenate, glyceryl monooleate, glyceryl monoerucate, glyceryl sesquioleate, glyceryl distearate, glyceryl diisostearate, and glyceryl diarachinate.

[0055] Examples of the above polyglycerin fatty acid esters include polyglycerin fatty acid esters with a degree of polymerization of 2 to 10, such as diglyceryl monocaprylate, decaglyceryl monocaprylate, hexaglyceryl monocaprate, tetraglyceryl monolaurate, hexaglyceryl monolaurate, decaglyceryl monolaurate, poly(4-10)glyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monoisostearate, poly(2-10)glyceryl monostearate, diglyceryl monooleate, hexaglyceryl monooleate, diglyceryl sesquioleate, poly(2-10)glyceryl diisostearate, poly(6-10)glyceryl distearate, diglyceryl triisostearate, and poly(10)glyceryl tristearate.

[0056] Examples of the polyoxyethylene glycerol fatty acid esters mentioned above include polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monoisostearate, and polyoxyethylene glyceryl monooleate.

[0057] Examples of the above (poly)oxyalkylene fatty acid esters include polyethylene glycol fatty acid esters such as polyethylene glycol monooleate, polyethylene glycol monostearate, polyethylene glycol distearate, and polyethylene glycol monolaurate; and propylene glycol fatty acid esters such as propylene glycol monostearate, propylene glycol monolaurate, and propylene glycol monooleate.

[0058] Examples of the above-mentioned sorbitan fatty acid esters include sorbitan monooleate, sorbitan monostearate, sorbitan monoisostearate, sorbitan monopalmitate, sorbitan monolaurate, sorbitan trioleate, sorbitan tristearate, sorbitan sesquioleate, sorbitan sesquiisostearate, and sorbitan coconut oil fatty acid.

[0059] Examples of the above-mentioned polyoxyethylene sorbitan fatty acid esters include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monoisostearate, polyoxyethylene sorbitan monococonut oil fatty acid, polyoxyethylene sorbitan tristearate, and polyoxyethylene sorbitan trioleate.

[0060] Examples of the above-mentioned polyoxyalkylene alkyl ethers include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene polyoxypropylene lauryl ether, polyoxypropylene cetyl ether, polyoxypropylene isocetyl ether, polyoxypropylene stearyl ether, and polyoxypropylene oleyl ether.

[0061] From the viewpoint of further improving emulsification stability, it is preferable that component (D) contains a nonionic surfactant (at least one nonionic surfactant) selected from the group consisting of polyglycerol fatty acid esters having an average number of moles of glycerol added of 4 or more and 12 or less, and polyoxyethylene glycerol fatty acid esters having an average number of moles of oxyethylene added of 4 or more and 12 or less.

[0062] In this specification, the above-mentioned "polyglycerin fatty acid ester having an average number of added moles of glycerin of 4 or more and 12 or less" may be referred to as "component (D1)," and the above-mentioned "polyoxyethylene glycerin fatty acid ester having an average number of added moles of oxyethylene of 4 or more and 12 or less" may be referred to as "component (D2)."

[0063] Therefore, component (D) preferably contains a nonionic surfactant selected from the group consisting of component (D1) and component (D2). The above cosmetic composition preferably contains a nonionic surfactant selected from the group consisting of component (D1) and component (D2).

[0064] Component (D) may preferably contain component (D1), may preferably contain component (D2), and may preferably contain both component (D1) and component (D2).

[0065] Examples of components (D1) include polyglyceryl laurate and polyglyceryl myristate.

[0066] Component (D1) preferably contains a polyglycerin fatty acid ester (at least one polyglycerin fatty acid ester) selected from the group consisting of polyglyceryl-10 laurate and polyglyceryl-10 myristate.

[0067] Examples of component (D2) include polyoxyethylene isostearate glyceryl and polyoxyethylene laurate glyceryl.

[0068] Component (D2) preferably contains a polyoxyethylene glycerin fatty acid ester (at least one polyoxyethylene glycerin fatty acid ester) selected from the group consisting of PEG-8 glyceryl isostearate and PEG-12 glyceryl laurate.

[0069] The average number of moles of glycerin added to component (D1) is 4 or more and 12 or less, preferably 5 or more, more preferably 6 or more, preferably 11 or less, and more preferably 10 or less. If the average number of moles of glycerin added is above the lower limit and below the upper limit, the emulsion stability can be further enhanced.

[0070] The average number of moles of oxyethylene added to component (D2) is 4 or more and 12 or less, preferably 5 or more, more preferably 6 or more, preferably 11 or less, and more preferably 10 or less. If the average number of moles of oxyethylene added is above the lower limit and below the upper limit, the emulsification stability can be further enhanced.

[0071] In 100% by mass of the above cosmetic composition, the content of component (D1) is preferably 1.0% by mass or more, more preferably 1.5% by mass or more, even more preferably 2.0% by mass or more, preferably 5.0% by mass or less, more preferably 4.5% by mass or less, and even more preferably 4.0% by mass or less. When the content of component (D1) is above the lower limit and below the upper limit, the emulsification stability can be further enhanced.

[0072] In 100% by mass of the above cosmetic composition, the content of component (D2) is preferably 1.0% by mass or more, more preferably 1.5% by mass or more, even more preferably 2.0% by mass or more, preferably 5.0% by mass or less, more preferably 4.5% by mass or less, and even more preferably 4.0% by mass or less. When the content of component (D2) is above the lower limit and below the upper limit, the emulsification stability can be further enhanced.

[0073] In 100% by mass of the above cosmetic composition, the content of component (D) is preferably 1.0% by mass or more, more preferably 1.5% by mass or more, even more preferably 2.0% by mass or more, preferably 5.0% by mass or less, more preferably 4.5% by mass or less, and even more preferably 4.0% by mass or less. When the content of component (D) is above the lower limit and below the upper limit, the emulsification stability can be further enhanced.

[0074] (Other ingredients) The above cosmetic composition may contain other components besides the components (A) to (D) described above. Examples of these other components include ester oils, silicone oils, animal and vegetable oils, higher alcohols, higher fatty acids, anionic surfactants, cationic surfactants, amphoteric surfactants, lower alcohols, cooling agents, pH adjusters, preservatives, antioxidants, chelating agents (such as EDTA), vitamins, animal and plant extracts, pearlescent agents, bactericides, UV absorbers, clay minerals, powders, colorants, and fragrances. Each of these other components may be used individually or in combination of two or more.

[0075] The above ester oils include ethyl oleate, isopropyl myristate, isopropyl palmitate, myristyl myristate, cetyl palmitate, 2-ethylhexyl palmitate, octyldodecyl myristate, isopropyl isostearate, propylene glycol isostearate, cetyl 2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, caprylic / capric triglyceride, isononyl isononanoate, diisopropyl adipate, pentaerythrityl tetraoctanoate, pentaerythrityl tetraisostearate, and phosphorus. Examples include diisostearyl hydroxylate, erythrityl triethylhexanoate, 2-ethylhexyl hydroxystearate, hexa(hydroxystearate / stearate / rosinate)dipentaerythrityl, tetra(hydroxystearate / isostearate)dipentaerythrityl, hexahydroxystearate dipentaerythrityl, (ethylhexanoate / stearate / adipate)glyceryl, tri(caprylic / capric / myristic / stearate)glyceryl, and hexa(behenate / benzoate / ethylhexanoate)dipentaerythrityl.

[0076] Examples of the above-mentioned silicone oils include dimethyl silicones such as methylpolysiloxane and highly polymerized methylpolysiloxane; methylphenyl silicone oils such as methylphenylpolysiloxane; cyclic silicones such as methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; amino-modified silicones such as aminopropylmethylsiloxane-dimethylsiloxane copolymer, aminoethylaminopropylsiloxane-dimethylsiloxane copolymer, and aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer; carboxy-modified silicones, fatty acid-modified silicones, alcohol-modified silicones, aliphatic alcohol-modified silicones, epoxy-modified silicones, fluorine-modified silicones, and alkyl-modified silicones; and methylhydrogenpolysiloxane and dimethiconol.

[0077] The above animal and vegetable oils include macadamia nut oil, eucalyptus oil, coconut oil, avocado oil, safflower oil, olive oil, palm oil, palm kernel oil, kukui nut oil, shea butter, cocoa butter, almond oil, sunflower oil, rosehip oil, olive squalane, camellia oil, kiwi fruit seed oil, camellia oil, apricot kernel oil, sesame oil, soybean oil, jojoba oil, castor oil, hazelnut oil, meadowfoam oil, peppermint oil, argan oil, Examples include carrot oil, lavender oil, sugar squalane, damask rose flower wax, centifolia rose flower wax, jasmine flower wax, hydrogenated versions of these (e.g., hydrogenated castor oil, hydrogenated jojoba oil, hydrogenated palm oil, hydrogenated avocado oil, hydrogenated soybean oil, etc.), carnauba wax, candelilla wax, sunflower seed wax, rice bran wax, Japanese wax, sugarcane wax, beeswax, shellac wax, whale wax, and lanolin.

[0078] Examples of the above-mentioned higher alcohols include aliphatic alcohols with 8 to 22 carbon atoms. More specifically, examples of the above-mentioned higher alcohols include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, isostearyl alcohol, cetostearyl alcohol, and oleyl alcohol.

[0079] Examples of the above-mentioned higher fatty acids include fatty acids with 8 to 22 carbon atoms. More specifically, examples of the above-mentioned higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, and behenic acid.

[0080] (Other details about the cosmetic composition) Examples of the above cosmetic compositions include skin cosmetic compositions and hair cosmetic compositions. The above cosmetic compositions may also be cosmetic compositions that can be used in combination on both skin and hair. Examples of the above cosmetic compositions include skin care compositions, skin cleansing compositions, and deodorant compositions.

[0081] The above cosmetic composition is preferably an emulsified cosmetic composition.

[0082] The above aerosol cosmetic composition is preferably used by injecting it into a shower device, as described below.

[0083] The viscosity of the above cosmetic composition at 25°C is preferably 5000 mPa·s or more, more preferably 10000 mPa·s or more, even more preferably 15000 mPa·s or more, and particularly preferably 20000 mPa·s or more. In the case of a highly viscous cosmetic composition, it is difficult to dispense the cosmetic composition using, for example, a syringe (for example, to inject the cosmetic composition into a shower device). In contrast, the present invention makes it possible to dispense the cosmetic composition from an aerosol container using an aerosol mechanism, and furthermore, to inject the cosmetic composition into a shower device, thus providing excellent usability even if the cosmetic composition has a relatively high viscosity. Also, concentrated cosmetic compositions often have high viscosity, and such concentrated cosmetic compositions are applied as a mixture with a relatively high concentration of ingredients even when diluted with water during use (for example, sprayed from a shower device as a mixture with a relatively high concentration of ingredients). For this reason, if the viscosity is above the lower limit, the user experience can be further enhanced. Furthermore, since a high viscosity cosmetic composition has a somewhat longer dissolution time, a viscosity above the lower limit results in a better user experience. The upper limit of the viscosity of the cosmetic composition at 25°C is not particularly limited as long as the cosmetic composition can be dispensed from the aerosol container. The viscosity of the cosmetic composition at 25°C may be 100,000 mPa·s or less, or 50,000 mPa·s or less. If the viscosity is below the upper limit, the cosmetic composition can be injected into the shower device in a shorter time.

[0084] The viscosity described above is measured using a Type B viscometer with a No. 3 rotor at a rotation speed of 6 rpm and a rotation time of 1 minute. For example, the "TV-25 viscometer" manufactured by Toki Sangyo Co., Ltd. can be used as the Type B viscometer.

[0085] The normal stress of the cosmetic composition at 25°C, as measured by the normal stress measurement method described below, may be 40 gf or less. Even if the viscosity of the cosmetic composition at 25°C exceeds 100,000 mPa·s (for example, exceeding the appropriate detection limit of viscosity measurement with a B-type viscometer), the cosmetic composition can be injected into the shower device in a relatively short time as long as the normal stress is below the above upper limit.

[0086] <Method for measuring normal stress> A container with an opening of 30 mm or more in diameter (e.g., a beaker or wide-mouthed jar) is filled with the cosmetic composition to a height of 22 mm or more from the bottom of the container, and left to stand at 25°C. Next, while the container is standing, a 10φ spherical adapter is inserted (pushed) from above the cosmetic composition, perpendicular to the top surface of the cosmetic composition, at a speed of 60 mm / min, to a depth of 20 mm from the top surface of the cosmetic composition, and the stress at this time is defined as the normal stress.

[0087] A smaller normal stress indicates a softer cosmetic composition, while a larger normal stress indicates a harder cosmetic composition. The normal stress can be measured using a stress measuring device. Examples of such stress measuring devices include the "Rheometer Series" manufactured by Sun Science Co., Ltd. (for example, the "Rheometer CR-500DX").

[0088] [Propellant] Conventional known propellants can be used as the above-mentioned propellants. Examples of such propellants include gases such as air, nitrogen, nitrous oxide, and carbon dioxide (especially compressed gases); and liquefied gases such as liquefied petroleum gas (LPG), dimethyl ether (DME), isopentane, fluorocarbon, and trans-1,3,3,3-tetrafluoropropene (HFO-1234ze-(E), etc.). Only one of the above-mentioned propellants may be used, or two or more may be used in combination.

[0089] From the viewpoint of discharge stability, the propellant is preferably a propellant selected from the group consisting of nitrogen and carbon dioxide (at least one propellant).

[0090] The amount of the propellant in the total 100% by mass of the cosmetic composition and the propellant is not particularly limited as it varies depending on the form of the aerosol container, etc. The amount of the propellant in the total 100% by mass of the cosmetic composition and the propellant may be 0.1% by mass or more, 0.5% by mass or more, 1.0% by mass or more, 70.0% by mass or less, 60.0% by mass or less, or 50.0% by mass or less.

[0091] When using an aerosol container comprising an outer container and an inner container (for example, when the aerosol cosmetic is a bag-on-valve type aerosol cosmetic), the content of the propellant in the total 100% by mass of the cosmetic composition and the propellant is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, preferably 10.0% by mass or less, more preferably 5.0% by mass or less, and even more preferably 3.0% by mass or less. When the content of the propellant is above the lower limit and below the upper limit, the discharge performance becomes even better.

[0092] In the case of the above aerosol cosmetic, which is a general aerosol cosmetic in which a cosmetic composition and a propellant are filled in a single aerosol container, the content of the propellant in the total 100% by mass of the cosmetic composition and the propellant is preferably 2.0% by mass or more, more preferably 3.0% by mass or more, even more preferably 4.0% by mass or more, preferably 70.0% by mass or less, more preferably 60.0% by mass or less, and even more preferably 50.0% by mass or less. When the content of the propellant is above the lower limit and below the upper limit, the discharge performance becomes even better.

[0093] [Aerosol cosmetics] The aerosol cosmetic composition of the present invention comprises an aerosol container, the cosmetic composition described above, and the propellant described above. The cosmetic composition is filled inside the aerosol container. The propellant is filled inside the aerosol container.

[0094] In the above aerosol cosmetic, the cosmetic composition can be dispensed from the aerosol container. From the viewpoint of dispensing stability, it is preferable that the above aerosol cosmetic allows the cosmetic composition to be dispensed from the aerosol container in liquid or paste (cream) form.

[0095] The above aerosol cosmetic is used by dispensing the cosmetic composition from the aerosol container and then diluting the dispensed cosmetic composition with water. In the above aerosol cosmetic, it is preferable that the mixture of the dispensed cosmetic composition and water is applied to the skin or hair after the cosmetic composition has been diluted with water.

[0096] The dilution ratio when diluting the above cosmetic composition with water is not particularly limited. In the above aerosol cosmetic, it is preferable to use the above cosmetic composition diluted with water 10 times or more, more preferably 100 times or more, preferably 10,000 times or less, and more preferably 5,000 times or less.

[0097] The above aerosol cosmetic composition is preferably used by dispensing the cosmetic composition from the aerosol container and then diluting the dispensed cosmetic composition with water in the shower device. The above aerosol cosmetic composition is preferably used by dispensing the cosmetic composition from the aerosol container and thereby injecting the cosmetic composition into the shower device.

[0098] Conventional shower cosmetic cartridges (shower products) containing solid cosmetic compositions have hygiene issues because the solid cosmetic composition is stored in contact with water within the shower device. In contrast, the above-mentioned aerosol cosmetic allows the desired amount of cosmetic composition to be injected into the shower device only when needed, thus offering superior hygiene.

[0099] Furthermore, conventional shower products containing solid cosmetic compositions have the problem that the amount of composition discharged from the showerhead cannot be adequately controlled because the amount of the solid cosmetic composition that dissolves varies depending on the water temperature and water pressure of the shower. In contrast, with the above-mentioned aerosol cosmetic, a desired amount of cosmetic composition can be injected into the shower device, and the entire amount of the injected cosmetic composition can be discharged from the showerhead of the shower device. The cosmetic composition is mixed with water (diluted with water) within the shower device, and the mixture of the cosmetic composition and water is discharged from the showerhead of the shower device. For this reason, the above-mentioned aerosol cosmetic is also superior in that it is easy to control the amount of cosmetic composition discharged from the showerhead.

[0100] The shower device described above typically includes a shower head. The shower head typically includes a shower head body and a spray plate. Alternatively, the shower device may also include a shower hose.

[0101] The shower device described above preferably has an injection mechanism (inlet) for injecting the cosmetic composition. The injection mechanism may include, for example, a valve or a cock. In the shower device described above, the shower head may have the injection mechanism, the shower hose may have the injection mechanism, or other components may have the injection mechanism. When the shower head has the injection mechanism, it is preferable that the shower head body also has the injection mechanism.

[0102] The method for injecting the above cosmetic composition into the shower device is not particularly limited. The above aerosol cosmetic can be used, for example, by connecting the discharge port of the aerosol cosmetic to the injection mechanism (inlet) of the shower device, and then discharging the cosmetic composition from the aerosol container to inject it into the shower device. When connecting the aerosol cosmetic to the injection mechanism of the shower device, the stem of the aerosol cosmetic may be directly connected to the injection mechanism of the shower device, or it may be connected via a button or nozzle. Furthermore, a space for temporarily holding the cosmetic composition may be provided inside the shower device. The shower device may have a structure such that when water is passed through, the water and the cosmetic composition mix in this space to form a mixed liquid, and this mixed liquid is then sent out.

[0103] The aerosol cosmetic may be used in a manner other than the method of injecting the cosmetic composition into the shower device. For example, the aerosol cosmetic may be used by dispensing the cosmetic composition from the aerosol container into another container, diluting the cosmetic composition with water in the other container, and then applying the resulting mixture (a mixture of the cosmetic composition and water) to the skin or hair.

[0104] The internal pressure of the above aerosol container (i.e., the pressure of the gas phase portion of the propellant inside the aerosol container) is preferably 0.30 MPa or higher, more preferably 0.50 MPa or higher, even more preferably 0.60 MPa or higher, preferably 0.95 MPa or lower, more preferably 0.90 MPa or lower, and even more preferably 0.80 MPa or lower at 25°C. In other words, in the above aerosol cosmetic composition, it is preferable that the propellant is filled inside the aerosol container so that the internal pressure at 25°C is 0.30 MPa or higher, more preferably 0.50 MPa or higher, even more preferably 0.60 MPa or higher, preferably 0.95 MPa or lower, even more preferably 0.90 MPa or lower, and even more preferably 0.80 MPa or lower. In this case, discharge stability can be improved.

[0105] Conventional aerosol containers can be used as the above-mentioned aerosol containers.

[0106] The above aerosol container may comprise an outer container and an inner container. In this case, it is preferable that the inner container is housed in the outer container. That is, the aerosol container may be a double-walled container comprising an outer container and an inner container. In this case, it is preferable that the cosmetic composition is filled in the inner container and the propellant is filled in the space between the outer container and the inner container. In this case, the usability of the aerosol cosmetic can be further improved.

[0107] The inner container is preferably a bag (inner bag). Examples of the bag include a bag made of sheet material. The bag is preferably a pouch formed by laminating sheet material. The sheet material is preferably a flexible sheet material. Examples of the sheet material include resin sheets such as polyolefin (polyethylene, polypropylene, etc.), polyester (polyethylene terephthalate, etc.), and polyamide (nylon, etc.); metal sheets such as aluminum foil, and laminated sheets thereof. The sheet material may be provided with a vapor-deposited layer of metal (aluminum, etc.) or inorganic material (silica, aluminum oxide, etc.). The thickness of the sheet material is not particularly limited, but is preferably 5 μm or more and preferably 100 μm or less.

[0108] Examples of the outer containers mentioned above include aluminum cans, tin cans, and polyethylene terephthalate (PET) containers.

[0109] As an aerosol container comprising an outer container and an inner container in the form of a bag, the so-called bag-on-valve type aerosol container is known and is available commercially. The aerosol cosmetic composition comprising the above-mentioned bag-on-valve type aerosol container is a bag-on-valve type aerosol cosmetic composition. That is, the above-mentioned aerosol cosmetic composition may be a bag-on-valve type aerosol cosmetic composition. When the aerosol cosmetic composition of the present invention is a bag-on-valve type aerosol cosmetic composition, it is possible to discharge only the cosmetic composition without discharging the propellant when discharging the cosmetic composition from the aerosol container, which is preferable because, for example, only the cosmetic composition can be efficiently injected into a shower device. Furthermore, it is preferable because it has excellent discharge properties even if the cosmetic composition has high viscosity.

[0110] When the above aerosol container comprises an outer container and an inner container, the propellant is preferably filled in the space between the outer container and the inner container such that the internal pressure at 25°C is 0.30 MPa or more, more preferably 0.50 MPa or more, even more preferably 0.60 MPa or more, preferably 0.95 MPa or less, more preferably 0.90 MPa or less, and even more preferably 0.80 MPa or less. In this case, the discharge stability can be improved.

[0111] The amount of cosmetic composition filled in the aerosol container is not particularly limited. The amount of cosmetic composition filled in the aerosol container is preferably, for example, 100 mL or more, and preferably 200 mL or less. Alternatively, the amount of cosmetic composition filled in the aerosol container is preferably, for example, 50 g or more, and preferably 300 g or less.

[0112] The above aerosol cosmetic can be manufactured by known methods. For example, a method for manufacturing the above aerosol cosmetic can be described as filling the above cosmetic composition or each component contained in the above cosmetic composition into an aerosol container, clinching the aerosol container with an aerosol valve, filling the propellant from the stem, and attaching an actuator suitable for the stem. For example, a method for manufacturing the above aerosol cosmetic of the bag-on-valve type can be described as filling the outer container with a propellant and clinching it with a bag-on-valve, and then filling the above cosmetic composition or each component contained in the above cosmetic composition into the inner container from the stem (furthermore, attaching an actuator suitable for the stem as necessary).

[0113] The method of using the above-mentioned aerosol cosmetic composition preferably comprises the steps of dispensing the cosmetic composition from the aerosol container and diluting the dispensed cosmetic composition with water.

[0114] In the step of diluting with water as described above, the dilution ratio when diluting the cosmetic composition with water is not particularly limited. In the step of diluting with water as described above, it is preferable to dilute the dispensed cosmetic composition with water 10 times or more, more preferably 100 times or more, preferably 10,000 times or less, and more preferably 5,000 times or less.

[0115] The method of using the above-mentioned aerosol cosmetic composition preferably comprises the steps of: injecting the cosmetic composition into the shower device by dispensing the cosmetic composition from the aerosol container (step (1)); and dispensing a mixture of the cosmetic composition and water from the shower head of the shower device (step (2)).

[0116] In step (1) described above, the method of injecting the cosmetic composition into the shower device is not particularly limited. However, as described above, it is preferable to inject the cosmetic composition into the shower device from the injection mechanism (inlet) of the shower device. Typically, the discharge of the cosmetic composition from the aerosol container and the injection of the discharged cosmetic composition into the shower device occur almost simultaneously (for example, within 5 seconds).

[0117] After step (1) above, the cosmetic composition comes into contact with water (water present in the shower device) inside the shower device, and the cosmetic composition and water are mixed. In step (2) above, the mixture of the cosmetic composition and water is discharged from the shower head of the shower device. The discharged mixture can be brought into contact with an object (for example, the user's skin) to produce the desired effect.

[0118] The present invention will be described in detail below with reference to experimental examples.

[0119] The following components were used in the experimental example.

[0120] (Component (A)) Mineral oil (KAYDOL, manufactured by Sonneborn Inc.) Squalane

[0121] (Component (B)) Glycerin Dipropylene glycol 1,3-BG:1,3-Butylene glycol

[0122] (Component (C)) purified water

[0123] (Component (D)) Polyglyceryl-10 myristate

[0124] (others) Isopropyl myristate Glyceryl (ethylhexanoate / stearic acid / adipate) fragrance Phenoxyethanol

[0125] (propellant) Nitrogen gas Liquefied petroleum gas (LPG)

[0126] (Experimental Examples 1-10, 12-28) Cosmetic compositions having the compositions shown in Tables 1 to 5 below were prepared by blending the ingredients shown in Tables 1 to 5 below (the blending unit is mass%). The propellant was filled into the outer container, and after clinching with a bag-on valve (a valve to which an inner container (bag) is attached), the obtained cosmetic composition was filled into the inner container from the stem to produce an aerosol cosmetic (a bag-on valve type aerosol cosmetic). Note that the blending amounts in the tables (amounts blended in 100% mass of the cosmetic composition) are shown as the amount blended in pure components (unit: mass%). The propellant was filled into the space between the outer container and the inner container (bag) so that the internal pressure at 25°C was the pressure shown in Tables 1 to 5 below.

[0127] (Experimental Example 11) A cosmetic composition having the composition shown in Table 2 below was prepared. The obtained cosmetic composition was filled into an aerosol container. Next, the aerosol valve was clinched into the aerosol spray container, and the propellant was filled from the stem to produce an aerosol cosmetic (a general aerosol cosmetic, not a bag-on-valve type).

[0128] The cosmetic compositions prepared in Experimental Examples 1-28 are skincare compositions.

[0129] (evaluation) The resulting aerosol cosmetic could be dispensed from the aerosol container whether it was upright or inverted. The resulting aerosol cosmetic was easy for the user to operate, and the cosmetic composition could only be dispensed from the aerosol container while the stem was pressed down (for example, while the spray button was pressed). Therefore, the resulting aerosol cosmetic has excellent usability. Furthermore, since the resulting aerosol cosmetic allows the desired amount of cosmetic composition to be injected into the shower device only when in use, it is highly hygienic.

[0130] Furthermore, the obtained aerosol cosmetics were evaluated as follows.

[0131] (Test Example 1: Viscosity of cosmetic composition at 25°C) The viscosity of the obtained cosmetic composition at 25°C was measured using a Type B viscometer (TV-25 viscometer manufactured by Toki Sangyo Co., Ltd.) with a No. 3 rotor at a rotation speed of 6 rpm and a rotation time of 1 minute.

[0132] (Test Example 2: Normal stress of cosmetic composition at 25°C) In the test described in Test Example 1 above, for cosmetic compositions whose viscosity at 25°C exceeded 100,000 mPa·s, the normal stress of the cosmetic composition at 25°C was measured using a rheometer CR-500DX manufactured by Sun Science Co., Ltd., in accordance with the <Method for Measuring Normal Stress> described above.

[0133] (Test example 3: Compatibility with hot and cold water) Ten mL of the obtained cosmetic composition was added to 2 L of 40°C hot water in a beaker, and the cosmetic composition and hot water were stirred with a stirring rod. The state of the stirred mixture was visually observed and evaluated according to the following criteria.

[0134] <Evaluation criteria for compatibility with hot and cold water> S (particularly excellent): With stirring five times or less, the cosmetic composition easily blends with hot water, and the mixture of the cosmetic composition and hot water becomes cloudy. A (Excellent): With stirring 6 to 10 times, the cosmetic composition easily blends with hot water, and the mixture of the cosmetic composition and hot water becomes cloudy. B (Inferior): After 10 stirrings, the cosmetic composition does not easily blend with the water, and the mixture of the cosmetic composition and the water does not become cloudy.

[0135] Furthermore, all cosmetic compositions that received a "B" rating in the above evaluation were able to blend with hot and cold water with 20 or fewer stirs and were perfectly usable when injected into a shower system. However, the cosmetic compositions that received a "B" rating in the above evaluation were less usable when dispensed into water and stirred by hand.

[0136] (Test Example 4-1: User Experience (1)) A mixture prepared by diluting 10 mL of the obtained cosmetic composition in 2 L of 40°C water was dispensed using a commercially available suction shower and flowed over the inner part of the subject's upper arm for 10 seconds. Immediately afterward, the inner part of the upper arm was towel-dried. Then, the subject's skin texture was evaluated by touch. Compared to the case without the cosmetic composition (simply flowing 40°C warm water under the same conditions), the subject was evaluated on whether they felt their skin was "moisturized" or not, and answered either "my skin feels moisturized" or "my skin does not feel moisturized." The evaluation was conducted by three subjects (professional evaluators).

[0137] (Test Example 4-2: User Experience (2)) The test was conducted using a shower device equipped with a shower head that had an inlet leading to the flow path of the shower head. The obtained aerosol cosmetic was connected to the inlet, and 10 mL of the cosmetic composition was dispensed from the aerosol cosmetic and injected into the flow path of the shower head. Next, 40°C hot water was passed through the shower device at a flow rate of approximately 4000 mL / min and discharged from the shower head, and the water was poured over the inner part of the subject's upper arm for 30 seconds. Immediately afterward, the inner part of the upper arm was towel-dried. After that, the feel of the inner part of the upper arm was evaluated by touch. Compared to the case without the cosmetic composition injection (simply pouring 40°C hot water under the same conditions), it was evaluated whether the subject felt that their skin was "moisturized," and the response was either "I feel my skin is moisturized" or "I do not feel my skin is moisturized." The evaluation was conducted by three subjects (professional evaluators).

[0138] <Evaluation criteria for user experience (1) and (2)> S: All 3 subjects responded that they felt their skin was moisturized. A: Two out of three subjects answered that they felt their skin was moisturized. B: One out of three subjects answered that they felt their skin was moisturized. C: Zero out of three subjects reported feeling that their skin was moisturized.

[0139] (Test Example 5: Stability of Cosmetic Compositions) In each experiment, three aerosol cosmetic compositions were prepared. The first aerosol cosmetic composition was stored at 5°C for one week. The second aerosol cosmetic composition was stored at 25°C for one week. The third aerosol cosmetic composition was stored at 40°C for one week. After storage, the properties of the cosmetic composition dispensed from the aerosol container were visually inspected. The cosmetic composition stored at 25°C for one week was designated "STD," the cosmetic composition stored at 5°C for one week was designated "Subject 1," and the cosmetic composition stored at 40°C for one week was designated "Subject 2." The differences in properties between STD and Subjects 1 and 2 were then examined.

[0140] <Evaluation Criteria for the Stability of Cosmetic Compositions> A: There is no difference in properties between STD and subjects 1 and 2. There are slight differences in properties between B:STD and subjects 1 and 2 (either one or both). There is a clear difference in characteristics between C:STD and subjects 1 and 2 (either one or both).

[0141] The composition and results are shown in Tables 1-5 below.

[0142] [Table 1]

[0143] [Table 2]

[0144] [Table 3]

[0145] [Table 4]

[0146] [Table 5]

Claims

1. Aerosol container and The cosmetic composition filled in the aerosol container, The aerosol container is filled with a propellant, The cosmetic composition comprises the following component A and the following component B, The cosmetic composition either does not contain the following component C, or contains the following component C in an amount of 40.0% by mass or less. The content of component A in 100% by mass of the cosmetic composition is 50.0% by mass or more and 92.0% by mass or less. The content of component B in 100% by mass of the cosmetic composition is 1.0% by mass or more and 10.0% by mass or less. An aerosol cosmetic comprising the cosmetic composition being dispensed from the aerosol container, and then the dispensed cosmetic composition being diluted with water for use. Component A: Hydrocarbon oil Component B: Polyhydric alcohol Component C: water

2. The aerosol cosmetic composition according to claim 1, wherein the aforementioned component B comprises the following component B1 and the following component B2. Ingredient B1: Glycerin Ingredient B2: Dipropylene glycol

3. The aerosol cosmetic composition according to claim 2, wherein the mass ratio of the content of component B1 to the content of component B2 is 2.0 or more and 20.0 or less.

4. The aerosol cosmetic composition according to any one of claims 1 to 3, wherein the cosmetic composition comprises the following component D. Ingredient D: Nonionic surfactant

5. The aerosol cosmetic composition according to claim 4, wherein the component D comprises a nonionic surfactant selected from the group consisting of the following components D1 and D2. Component D1: Polyglycerol fatty acid ester having an average number of added moles of glycerol of 4 or more and 12 or less. Component D2: Polyoxyethylene glycerol fatty acid ester having an average number of added moles of oxyethylene of 4 or more and 12 or less.

6. The aerosol cosmetic according to any one of claims 1 to 3, wherein the cosmetic composition is an emulsified cosmetic composition.

7. The aerosol cosmetic composition according to any one of claims 1 to 3, wherein the viscosity of the cosmetic composition at 25°C is 5000 mPa·s or more.

8. The aerosol cosmetic composition according to any one of claims 1 to 3, wherein the internal pressure of the aerosol container is 0.30 MPa or more and 0.95 MPa or less at 25°C.

9. The aerosol container comprises an outer container and an inner container. The inner container is housed in the outer container. The cosmetic composition is filled into the inner container, The aerosol cosmetic composition according to any one of claims 1 to 3, wherein the propellant is filled in the space between the outer container and the inner container.

10. The aerosol cosmetic composition according to claim 9, wherein the propellant is filled into the space between the outer container and the inner container such that the internal pressure at 25°C is 0.30 MPa or more and 0.95 MPa or less.

11. The aerosol cosmetic composition according to claim 9, wherein the inner container is a bag.

12. A method for using an aerosol cosmetic according to any one of claims 1 to 3, A step of dispensing the cosmetic composition from the aerosol container, A method for using an aerosol cosmetic, comprising the step of diluting the dispensed cosmetic composition with water.

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