Cosmetic composition

Abstract

To provide a cosmetic composition suitable for use in cosmetics and topical skin agents, incorporating a powder composition substituting for plastic powders such as nylon, acrylic, or urethane powders.SOLUTION: A cosmetic composition comprises a powder composition containing (A) acyl lysine and (B) rice flour, where the acyl lysine (A) has a median diameter of 9 μm or less in the volume-based distribution.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a cosmetic composition. [Background technology]

[0002] Plastic powders such as nylon powder, acrylic powder, and urethane powder may be blended into cosmetics to improve the feel and slipperiness during application. However, in recent years, interest in environmental load has increased, and there has been a movement to seek alternative products. For example, JP 2020-97552 A describes an unevenness correcting cosmetic that does not contain microplastic beads, containing (a) 6 to 10% by weight of fumed hydrophobic silica, (b) 5 to 20% by weight of octamethyltrisiloxane and / or decamethyltetrasiloxane, (c) batyl alcohol, and (d) 10 to 30% by weight of powder other than (a) that does not contain microplastic beads. In addition, JP 2020-50840 A describes a cosmetic that contains porous cellulose particles formed by the aggregation of specific crystalline cellulose. In addition, JP 2020-152851 A describes a cosmetic composition containing specific cellulose derivative particles. However, there remains a need for superior powder compositions to replace plastic powders such as nylon, acrylic, or urethane powders. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-97552 A [Patent Document 2] JP 2020-50840 A [Patent Document 3] JP 2020-152851 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a cosmetic composition containing a powder composition which can be used in cosmetics and topical skin preparations and which can replace plastic powders such as nylon powder, acrylic powder, or urethane powder. [Means for solving the problem]

[0005] As a result of intensive research in view of the above problems, the present inventors have found for the first time that the above problems can be solved by blending a powder composition containing a specific acyl lysine and rice flour in specific blending amounts in a cosmetic composition, and have thus completed the present invention. [1] A cosmetic composition comprising a powder composition containing (A) acyl lysine and (B) rice flour, wherein the median diameter of the volume-based distribution of (A) acyl lysine is 9 μm or less. [2] The cosmetic composition according to [1] above, wherein, when the entire powder composition is taken as 100% by mass, the content of (A) is 2 to 40% by mass, the content of (B) is 3 to 95% by mass, and the total amount of (A) and (B) is 0.1% by mass or more. [3] The cosmetic composition according to [1] above, which is a skin topical preparation. [4] The cosmetic composition according to [1] above, which is a rinse-off cleanser. [5] The cosmetic composition according to [1] above, which is a makeup cosmetic. [6] The cosmetic composition according to any one of the above items [1] to [5], comprising the powder composition and an inorganic powder. [7] The cosmetic composition according to [6] above, further comprising an organic powder. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0006] The cosmetic composition of the present invention includes a powder composition containing (A) acyl lysine and (B) rice flour.

[0007] The (A) acyl lysine has a volume-based distribution median diameter of 9 μm or less, and from the viewpoint of improving adhesion, it is preferably 6 μm or less, from the viewpoint of further improving adhesion and improving the feel, it is more preferably 5 μm or less, and from the viewpoint of improving adhesion and shortening the production time, it is even more preferably 4 μm or less. The median diameter of the number-based distribution of the (A) acyl lysine of the present invention is preferably 4 μm or less. The median diameter of acyl lysine can be determined by measuring the particle size distribution based on the number or volume using a laser diffraction / scattering type particle size distribution measuring device. The median diameter means the particle size at the point where the distribution curve of the cumulative percentage of passing through intersects with the horizontal axis at 50%. The "number-based distribution" refers to a particle size distribution in which the number of particles is counted and the calculation is based on the number when calculating the frequency of each particle size in the particle size distribution, and the "volume-based distribution" refers to a particle size distribution in which the volume of particles assumed to be spherical is counted and the calculation is based on the value when calculating the frequency of each particle size in the particle size distribution. The bulk density of the acyl lysine is preferably 0.38 g / mL or less. The bulk density is preferably 0.01 to 0.38 g / mL, more preferably 0.05 to 0.38 g / mL, and further preferably 0.1 to 0.36 g / mL. The bulk density of acyl lysine can be measured by the following method. The acyl lysine was mixed in a mixer for more than 2 minutes to disintegrate it, and the bulk density of the resulting crystals was measured using a powder flow analyzer (e.g., Powder Rheometer FT-4 (Freeman Technology)). TM Specifically, a certain amount of acyl lysine is weighed into a holder, and then conditioned according to the usage procedure, and the bulk density is measured from the volume after conditioning and the mass of the acyl lysine according to the following formula. Bulk density = mass after conditioning / volume after conditioning (g / mL)

[0008] (A) The method for producing acyl lysine having a median diameter of 9 μm or less in the volume distribution can be obtained by a method of dropping a basic solution of acyl lysine into a solution of hydrochloric acid or the like to crystallize it, or a pulverization method using a machine, etc. The acyl lysine having a median diameter of 9 μm or less in the volume distribution can be obtained, for example, by the method described in WO2020 / 262367.

[0009] The acyl group of (A) acyl lysine is a saturated or unsaturated fatty acid acyl having 8 to 22 carbon atoms, such as octanoyl, lauroyl, myristoyl, palmitoyl, stearoyl, octyldodecyl, oleyl, behenyl, coconut oil fatty acid acyl, palm kernel oil fatty acid acyl, beef tallow fatty acid acyl, etc., and is preferably one or more selected from the group consisting of lauroyl and octanoyl in terms of general availability. That is, the acyl lysine is preferably a saturated fatty acid acyl having 8 to 12 carbon atoms, more preferably lauroyl lysine or octanoyl lysine, and even more preferably lauroyl lysine.

[0010] The rice flour used in the present invention is not limited to the raw materials described in the examples, and may be any rice-derived, cosmetically acceptable material, such as PhytMic Rice from Greenphyt and Microzest 25 Rice from Lessonia.

[0011] The content of (A) acyl lysine is preferably 2 to 40 mass % when the entire powder composition is taken as 100 mass %. The content of (B) rice flour is preferably 3 to 95% by mass, with the entire powder composition being taken as 100% by mass. The total amount of (A) acyl lysine and (B) rice flour is preferably 0.1% by mass or more.

[0012] The cosmetic composition of the present invention can be used as a cosmetic or skin topical preparation. The cosmetic or skin topical preparation can be prepared in any form that can be applied to the desired area (e.g., skin, hair, scalp, lips, eyes, eyelashes, eyelids, nails) according to a conventional method. Examples include cake, paste, liquid, powder, spray, etc. Examples of the cosmetic or skin topical preparation for the skin, lips, eyelashes, and nails include sunscreens such as sunscreens, body powders, and sprays, makeup cosmetics such as foundations, face powders, primers, BB creams, body colors, bronzers, face powders, loose powders, nail polishes, cheek colors, makeup bases, and concealers, lip cosmetics such as lip colors, lip liners, and lipsticks, eye makeup cosmetics such as eyeliners, eye shadows, eyebrows, and mascaras, leave-on cosmetics such as emulsions, lotions, creams, gels, and serums, and face masks. Examples of cosmetics or topical preparations for hair include hair styling agents, hair milky lotions, hair treatments, hair conditioners, and hair lotions. Examples of cosmetics or topical preparations for the scalp include hair growth agents. Examples of preferred cosmetics include makeup cosmetics, eye makeup cosmetics, lip cosmetics, and leave-on cosmetics. Examples of preferred topical preparations include ointments, creams, mousses, and gels. Particularly preferred applications of the present invention include makeup cosmetics.

[0013] When used as a cosmetic or topical skin preparation, the cosmetic may contain ingredients that can be normally used in cosmetics (including topical pharmaceutical preparations and quasi-drugs) to the extent that the effects of the present invention are not impaired. For example, oils, inorganic powders, water, surfactants, amino acids, amino acid derivatives, lower alcohols (e.g., ethanol), polyhydric alcohols (e.g., glycerin, butylene glycol), sugar alcohols and their alkylene oxide adducts, polymers, water-soluble polymers (e.g., hydroxyethyl cellulose), film-forming polymers, gelling agents (e.g., dibutyl lauroyl glutamide, dibutyl ethyl hexanoyl glutamide, 12-hydroxystearic acid), moisturizing agents (e.g., sodium pyrrolidone carboxylate), bactericides and antibacterial agents, anti-inflammatory agents, analgesics, antifungal agents, keratin softening and peeling agents, skin colorants, hormones, ultraviolet absorbing agents, hair growth agents, antiperspirants, and agents with astringent activity. Examples of suitable additives include ingredients (e.g., zinc salt of pyrrolidone carboxylate), sweat deodorants, vitamins, blood flow promoters (vasodilators, blood circulation promoters), herbal medicines, plant extracts, pH adjusters, chelating agents (e.g., EDTA-2Na), UV absorbers, UV scattering agents, organic amines, polymer emulsions, vitamins, viscosity adjusters, pearlizing agents, natural fragrances, synthetic fragrances, dyes and pigments (e.g., Red No. 202, Blue No. 1), antioxidants (e.g., tocopherol, tocopherol acetate, pentagalloyl glucoside), antioxidant aids, preservatives (e.g., methylparaben, butylparaben, propylparaben, phenoxyethanol), emulsifiers, thickeners, fats and waxes, silicone compounds, and perfume oils.

[0014] The surfactant may be a nonionic surfactant, a cationic surfactant, an anionic surfactant, or an amphoteric surfactant.

[0015] Specific examples of the nonionic surfactant include lipophilic nonionic surfactants and hydrophilic nonionic surfactants, such as sorbitan fatty acid esters (e.g., sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, diglycerol sorbitan penta-2-ethylhexyl acid, diglycerol sorbitan tetra-2-ethylhexyl acid, etc.), glycerin polyglycerin fatty acids ( For example, monocottonseed oil fatty acid glycerol, monoerucate glycerol, sesquioleate glycerol, monostearate glycerol, α,α'-oleate pyroglutamate glycerol, monostearate glycerol malate, etc.), propylene glycol fatty acid esters (for example, propylene glycol monostearate, etc.), hydrogenated castor oil derivatives, glycerin alkyl ethers, POE-sorbitan fatty acid esters (for example, POE-sorbitan monooleate, POE-sorbitan monostearate, POE-sorbitan monooleate ... E-sorbitan tetraoleate, etc.), POE sorbitol fatty acid esters (for example, POE-sorbitol monolaurate, POE-sorbitol monooleate, POE-sorbitol pentaoleate, POE-sorbitol monostearate, etc.), POE-glycerin fatty acid esters (for example, POE-monooleates such as POE-glycerin monostearate, POE-glycerin monoisostearate, POE-glycerin triisostearate, etc.), POE-fatty acid esters (for example, POE-distearate, POE-monodioleate, etc.), , ethylene glycol distearate, etc.), POE-alkyl ethers (e.g., POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE-cholestanol ether, etc.), Pluronic types (e.g., Pluronic, etc.), POE·POP-alkyl ethers (e.g., POE·POP-cetyl ether, POE·POP-2-decyltetradecyl ether, POE·POP-monobutyl ether, POE·POP-hydrogenated lanolin,POE·POP-glycerin ether, etc.), tetra POE·tetra POP-ethylenediamine condensates (e.g., Tetronic, etc.), POE-castor oil hydrogenated castor oil derivatives (e.g., POE-castor oil, POE-hydrogenated castor oil, POE-hydrogenated castor oil monoisostearate, POE-hydrogenated castor oil triisostearate, POE-hydrogenated castor oil monopyroglutamic acid monoisostearate diester, POE-hydrogenated castor oil maleic acid, etc.), POE-beeswax / lanolin derivatives (e.g., POE-sorbitol beeswax, etc.), alkanolamides (e.g., coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc.), POE-propylene glycol fatty acid esters, POE-alkylamines, POE-fatty acid amides, caprylyl glycol, sucrose fatty acid esters, alkylethoxydimethylamine oxide-trioleyl phosphate, etc.,

[0016] Specific examples of the cationic surfactant include stearyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, behenyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, dioleyl dimethyl ammonium chloride, didecyl dimethyl ammonium chloride, lauric acid amide butyl guanidine acetate, myristic acid amide butyl guanidine acetate, palmitic acid amide butyl guanidine acetate, distearyl dimethyl ammonium sulfate, stearyl ethyl dihydroxyethyl ammonium ethyl sulfate, N-coconut oil fatty acid L-arginine ethyl-DL-pyrrolidone carboxylate, stearic acid dimethylaminoethyl amide, stearic acid dimethylaminopropyl amide, stearic acid diethylaminoethyl amide, stearic acid diethylaminopropyl amide, stearic acid dipropylaminoethyl amide, stearic acid dipropylaminopropyl amide, palmitic acid dimethylaminoethyl amide, palmitic acid dimethylaminopropyl amide, myristic acid dimethylaminoethyl amide, myristic acid dimethylaminopropyl amide, behenic acid dimethylaminoethyl amide, behenic acid dimethylaminopropyl amide, and the like.

[0017] Specific examples of the anionic surfactant include N-acylamino acid salts, N-acylmethyl taurine salts, alkyl ether phosphate salts, alkyl sulfate salts, and polyoxyethylene alkyl ether sulfate salts. Examples of the anionic surfactant include N-acyl glutamates such as potassium cocoyl glutamate, N-acyl-N-methyl-β-alanine salts, N-acyl sarcosinates (sodium palmitoyl sarcosine, sodium lauroyl sarcosine, sodium cocoyl sarcosine, etc.), sodium N-cocoyl taurate, sodium N-cocoyl-N-methyl taurate, and N-lauroyl- Examples of such an isethionate include sodium N-methyl taurate, sodium N-cocoyl taurate, triethanolamine N-cocoyl taurate, triethanolamine N-palm oil fatty acid-N-ethyl taurate, magnesium N-cocoyl taurate, magnesium N-methyl cocoyl taurate, magnesium N-lauroyl-N-taurate, magnesium N-lauroyl-N-methyl taurate, magnesium N-cocoyl taurate, sodium cocoyl isethionate, sodium lauroyl isethionate, and sodium lauroyl methyl isethionate.

[0018] Specific examples of amphoteric surfactants include imidazoline-based amphoteric surfactants (e.g., 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.); betaine-based surfactants (e.g., 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryl dimethylaminoacetic acid betaine, alkyl betaine, amido betaine, sulfo betaine, cocamidopropyl betaine, lauryl betaine, etc.).

[0019] The cosmetic composition of the present invention may contain a fatty acid or a salt thereof. The fatty acid or the salt thereof is not particularly limited as long as it is a neutralized product of a fatty acid, or a saponified product of a fatty acid ester or fat that is generally used as a cosmetic material. The cleansing agent of the present invention may contain a fatty acid soap, which is a fatty acid salt obtained by neutralizing a fatty acid with an alkali. The fatty acid is preferably a fatty acid having 8 to 22 carbon atoms, and may be linear, branched, saturated or unsaturated. For example, one or a combination of two or more of lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, palmitoleic acid, oleic acid, isomyristic acid, isopalmitic acid and isostearic acid may be used. Examples of alkalis that form fatty acid salts include inorganic alkalis such as potassium hydroxide and sodium hydroxide, organic alkalis such as triethanolamine, and basic amino acids such as lysine and arginine. Among these alkalis, it is preferable to use potassium hydroxide. As the salt of a fatty acid, potassium laurate, potassium myristate, potassium palmitate, and potassium stearate are preferably used, and potassium laurate, potassium myristate, and potassium palmitate are more preferably used. Salts of fatty acids are produced, for example, by neutralizing fatty acids with an alkali, but generally, the fatty acids are not completely neutralized and the product may also contain unreacted (higher) fatty acids.

[0020] Specific examples of polyhydric alcohols include dihydric alcohols (e.g., ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, pentamethylene glycol, 2-butene-1,4-diol, isopentyl diol, hexylene glycol, octylene glycol, ethylhexylglycerin, 1,2-pentanediol, etc.); trihydric alcohols (e.g., glycerin, trimethylolpropane, etc.); tetrahydric alcohols (e.g., pentaerythritol such as 1,2,6-hexanetriol, etc.); pentahydric alcohols (e.g., xylitol, etc.); hexahydric alcohols (e.g., sorbitol, mannitol, etc.); and polyhydric alcohol polymers (e.g., diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, etc.); dihydric alcohol alkyl ethers (e.g., ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono 2-methylhexyl ether, ethylene glycol isoamyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, etc.);Dihydric alcohol alkyl ethers (e.g., diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol butyl ether, diethylene glycol methyl ethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol isopropyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether, etc.); dihydric alcohol ether esters (e.g., ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diadipate, ethylene glycol disuccinate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, propylene glycol monophenyl ether acetate, etc.; glycerin monoalkyl ethers (e.g., xyl alcohol, selachyl alcohol, batyl alcohol, etc.); sugar alcohols (e.g., sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, starch decomposition sugar, maltose, xylitose, starch decomposition sugar reduced alcohol, etc.); glycerin solids; tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP·POE-butyl ether; tripolyoxypropylene glycerin ether; POP-glycerin ether; POP-glycerin ether phosphate; POP·POE-pentane erythritol ether, polyglycerin, etc.;

[0021] The oil agent is not particularly limited, and examples thereof include fats and oils, waxes, hydrocarbon oils, higher fatty acids, higher alcohols, synthetic ester oils, ether oils, silicone oils, and silicones.

[0022] Examples of fats and oils include liquid fats and oils such as avocado oil, camellia oil, evening primrose oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, Chinese tung oil, Japanese tung oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, and glycerin triisopalmitate; and solid fats and oils such as cacao butter, coconut oil, horse tallow, hardened coconut oil, palm oil, beef tallow, mutton tallow, hardened beef tallow, palm kernel oil, lard, beef bone fat, Japan wax kernel oil, hardened oil, beef leg fat, Japan wax, and hardened castor oil.

[0023] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ivory wax, whale wax, montan wax, bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, and POE hydrogenated lanolin alcohol ether.

[0024] Examples of the hydrocarbon oil include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, isododecane, isohexadecane, microcrystalline wax, and the like, as well as the oil components of hydrogenated polyisobutene.

[0025] Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, 12-hydroxystearic acid, undecylenic acid, tallic acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).

[0026] Examples of higher alcohols include straight-chain alcohols such as lauryl alcohol, cetyl alcohol, cetanol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, and cetostearyl alcohol; and branched-chain alcohols such as monostearyl glycerin ether (batyl alcohol), 2-decyltetradecyl alcohol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, and octyldodecanol.

[0027] Examples of synthetic ester oils and ether oils include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid esters, and N-monoisostearate. -Alkyl glycol, neopentyl glycol dicaprate, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexylate, trimethylolpropane triisostearate, pentaerythrityl tetraethylhexanoate, pentaerythrityl tetra(di-t-butyl hydroxyhydrocinnamate), glycerin tri-2-ethylhexylate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glycerin trimyristate , Tri-2-heptylundecanoic acid glyceride, Castor oil fatty acid methyl ester, Oleic acid oil, Acetoglyceride, 2-heptylundecyl palmitate, Diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, Lauroyl glutamic acid (phytosteryl / octyldodecyl), Lauroyl glutamic acid di(octyldodecyl / phytosteryl / behenyl), Lauroyl sarcosine isopropyl, Di-2-heptylundecyl adipate, Ethyl laurate, Di-2-ethylhexyl sebacate, Myris 2-Hexyldecyl tincture, 2-Hexyldecyl palmitate, 2-Hexyldecyl adipate, bis-diglyceryl polyacyladipate-2, diisopropyl sebacate, 2-ethylhexyl succinate, isostearyl isostearate, tritridecyl trimellitate, octyldodecyl 12-stearoyl stearate, tri(caprylic / capric)glyceryl, dipentaerythrityl hexa(hydroxystearic / stearic / rosinic acid), ethyl acetate, butyl acetate, amyl acetate, triethyl citrate, crotamiton (C13H17NO),Dicaprylyl ether, hydrogenated jojoba oil, etc.

[0028] Examples of silicone oils include linear silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and PEG-10 dimethicone; cyclic silicone oils such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and tetramethyltetrahydrogencyclopolysiloxane; alkyl-modified silicone oils that are liquid at room temperature such as caprylmethicone, capryltrimethicone, and stearylmethicone; and fluorine-modified silicone oils such as dimethylsiloxane-diphenylsiloxane-methyl(perfluoroalkyl)siloxane copolymers.

[0029] Examples of silicones include alkyl and alkoxy silicone waxes such as stearyl-modified dimethicone and behenyl-modified dimethicone, silicone resins forming a three-dimensional network structure, silicone rubber, etc. These may be used alone or in combination of two or more kinds.

[0030] Examples of inorganic powders include yellow iron oxide, red iron oxide, black iron oxide, fine iron oxide, bismuth oxychloride, bismuth oxide, bismuth trioxide, zirconium oxide, magnesium oxide, chromium oxide, cobalt oxide, carbon black, ultramarine, Prussian blue, zinc oxide, fine zinc oxide, titanium oxide, fine titanium oxide, silica, silylated silica, porous silica, alumina, cerium oxide, boron nitride, calcium sulfate, barium sulfate, magnesium sulfate, magnesium stearate, calcium stearate, zinc stearate, magnesium myristate, calcium carbonate, magnesium carbonate, aluminum silicate, magnesium silicate, silicon carbide, pigments, lake, sericite, mica, talc, kaolin, clay, bentonite, plate-shaped barium sulfate, butterfly-shaped barium sulfate, and hydroxyapatite. Examples of organic powders include polyamide resin powder, polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, etc. Examples of pigments include inorganic red pigments such as iron oxide (red oxide) and iron titanate; inorganic brown pigments such as γ-iron oxide; inorganic yellow pigments such as yellow iron oxide and ocher; inorganic black pigments such as black iron oxide, carbon, and low-order titanium oxide; inorganic purple pigments such as mango violet and cobalt violet; inorganic green pigments such as chromium oxide, chromium hydroxide, and cobalt titanate; inorganic blue pigments such as ultramarine and Prussian blue; titanium oxide-coated mica, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, colored titanium oxide-coated mica, bismuth oxychloride, pearl pigments such as pearlescent pigments, fish scale foil, etc.; metal powder pigments such as aluminum powder, copper powder, etc.; organic pigments such as Red No. 202, Red No. 205, Red No. 220, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, Blue No. 404, etc.; organic pigments such as zirconium, barium, aluminum lake, etc., such as Red No. 3, Red No. 104, Red No. 227, Red No. 401, Orange No. 205, Yellow No. 4, Yellow No. 202, Green No. 3, Blue No. 1, etc.; natural pigments such as chlorophyll, β-carotene, etc. These may be used alone or in combination of two or more kinds.The inorganic powder may further be a composite of the above-mentioned materials (for example, silica-coated titanium oxide, mica-coated titanium oxide, titanium-coated mica), or may be a material obtained by subjecting the above-mentioned materials to a surface treatment such as silicone treatment, fluorine compound treatment, silane coupling agent treatment, silane treatment, organic titanate treatment, fatty acid treatment (for example, stearoyl glutamic acid treatment), metal soap treatment (for example, aluminum stearate treatment), oil treatment, amino acid treatment, or the like (for example, silicone-treated talc, silicone-treated mica, silicone-treated sericite, silicone-treated titanium oxide, silicone-treated red iron oxide, silicone-treated yellow iron oxide, silicone-treated black iron oxide, stearoyl glutamic acid-treated titanium oxide, stearoyl glutamic acid-treated yellow iron oxide, stearoyl glutamic acid-treated red iron oxide, stearoyl glutamic acid-treated black iron oxide, stearoyl glutamic acid-treated titanium oxide, stearoyl glutamic acid-treated titanium oxide, aluminum stearate-treated titanium oxide, etc.).

[0031] The UV absorbent is not particularly limited as long as it is an ultraviolet absorbent that can be incorporated into cosmetics. For example, benzoic acid-based ultraviolet absorbents include para-aminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerin ester, N,N-dipropoxy PABA ethyl ester, N,N-diethoxy PABA ethyl ester, N,N-dimethyl PABA ethyl ester, N,N-dimethyl PABA butyl ester, and N,N-dimethyl PABA ethyl ester. An anthranilic acid-based ultraviolet absorbent includes homomenthyl-N-acetylanthranilate. An example of a salicylic acid-based ultraviolet absorbent includes amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, and p-isopropanol phenyl salicylate. Examples of cinnamic acid-based ultraviolet absorbing agents include octyl cinnamate, ethyl 4-isopropyl cinnamate, methyl 2,5-diisopropyl cinnamate, ethyl 2,4-diisopropyl cinnamate, methyl 2,4-diisopropyl cinnamate, propyl p-methoxy cinnamate, isopropyl p-methoxy cinnamate, isoamyl p-methoxy cinnamate, octyl p-methoxy cinnamate (2-ethylhexyl p-methoxy cinnamate), 2-ethoxyethyl p-methoxy cinnamate, cyclohexyl p-methoxy cinnamate, ethyl α-cyano β-phenyl cinnamate, 2-ethylhexyl α-cyano β-phenyl cinnamate, and glyceryl mono-2-ethylhexanoyl di-para-methoxy cinnamate. Examples of triazine-based ultraviolet absorbing agents include bisresorcinyl triazine. More specifically, examples thereof include bis{[4-(2-ethylhexyloxy)-2-hydroxy]phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine and 2,4,6-tris{4-(2-ethylhexyloxycarbonyl)anilino}1,3,5-triazine.Other examples include 3-(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l-camphor, 2-phenyl-5-methylbenzoxazole, 2,2'-hydroxy-5-methylphenylbenzotriazole, 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole, 2-(2'-hydroxy-5'-methylphenylbenzotriazole, dianisoylmethane, 4-methoxy-4'-t-butyldibenzoylmethane, 5-(3,3-dimethyl-2-norbornylidene)-3-pentan-2-one, pyridazine derivatives such as dimorpholinopyridazinone, octocrylene, dimethicodiethylbenzylmalonate (also known as polysilicone-15), 2-hydroxy-4-methoxybenzophenone (also known as oxybenzone-3), and the like.

[0032] Examples of viscosity adjusters include synthetic polymer compounds such as polyvinyl alcohol, carboxyvinyl polymer, carboxymethyl cellulose, polyvinylpyrrolidone, hydroxyethyl cellulose, methyl cellulose, (HDI / trimethylol hexyl lactone) crosspolymer, natural polymers such as gelatin, xanthan gum, taracant gum, sodium hyaluronate, montmorillonite, bentonite, Veegum series, Kunipia series (manufactured by Kunimine Kogyo Co., Ltd.), natural colloidal hydrated silicates such as magnesium silicate, Laponite series (manufactured by Laporte Co., Ltd.) and Sumecton series (manufactured by Kunimine Kogyo Co., Ltd.), synthetic colloidal hydrated silicates such as disteardimonium hectorite, and organic modified products of the above compounds, and one or more of these are appropriately selected and blended.

[0033] Examples of the polymers that can be used include anionic, cationic, nonionic, synthetic polymers, cellulose, starch, natural polymers, film-forming agents, etc. Examples of natural water-soluble polymers include plant-based polymers (e.g., gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed, algae colloid (kasso extract), starch (rice, corn, potato, wheat), glycyrrhizic acid), microbial polymers (e.g., xanthan gum, dextran, succinoglucan, pullulan, etc.), and animal-based polymers (e.g., collagen, casein, albumin, gelatin, etc.). Examples of semi-synthetic water-soluble polymers include starch-based polymers (e.g., carboxymethyl starch, methylhydroxypropyl starch, octenyl succinate corn starch Al, hydroxypropyl starch phosphate, etc.); cellulose-based polymers (methyl cellulose, ethyl cellulose, methylhydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder, etc.); alginic acid-based polymers (e.g., sodium alginate, propylene glycol alginate, etc.). Examples of synthetic water-soluble polymers include vinyl-based polymers (e.g., polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, carboxyvinyl polymer, etc.); polyoxyethylene-based polymers (e.g., polyoxyethylene polyoxypropylene copolymers of polyethylene glycol 20,000, 40,000, 60,000, etc.); acrylic-based polymers (e.g., sodium polyacrylate, polyethyl acrylate, polyacrylamide, methyl methacrylate crosspolymer, etc.); polyethyleneimine; cationic polymers, etc.Examples of thickening agents include gum arabic, carrageenan, karaya gum, tragacanth gum, carob gum, quince seed, casein, dextrin, gelatin, sodium pectinate, sodium alginate, methylcellulose, ethylcellulose, carboxymethylcellulose (CMC), hydroxyethylcellulose, hydroxypropylcellulose, polyvinyl alcohol (PVA), polyvinyl methyl ether (PVM), PVP (polyvinylpyrrolidone), sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guar gum, tamarind gum, dialkyldimethylammonium cellulose sulfate, xanthan gum, magnesium aluminum silicate, bentonite, hectorite, magnesium aluminum silicate (veegum), laponite, silicic anhydride, taurate-based synthetic polymers, and acrylate-based synthetic polymers. Examples of the coating agent include anionic coating agents (e.g., (meth)acrylic acid / (meth)acrylic acid ester copolymer, methyl vinyl ether / maleic anhydride high polymer, etc.), cationic coating agents (e.g., cationic cellulose, dimethyl diallyl ammonium chloride polymer, dimethyl diallyl ammonium chloride / acrylamide copolymer, etc.), nonionic coating agents (e.g., polyvinyl alcohol, polyvinylpyrrolidone, polyvinyl acetate, polyacrylic acid ester copolymer, (meth)acrylamide, polymeric silicone (dimethicone crosspolymer, (vinyl dimethicone / methicone silsesquioxane) crosspolymer, alkyl (C-30-45) dimethylsilyl polypropyl silsesquioxane, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) crosspolymer, etc.), silicone resin, trimethylsiloxysilicate, etc.).

[0034] Examples of chelating agents include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, disodium edetate, trisodium edetate, tetrasodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, and trisodium ethylenediaminehydroxyethyltriacetate.

[0035] Examples of the amino acid include neutral amino acids (e.g., threonine, cysteine, etc.), basic amino acids (e.g., hydroxylysine, etc.), etc. Examples of the amino acid derivatives include sodium acyl sarcosine (sodium lauroyl sarcosine), acyl glutamate, sodium acyl β-alanine, glutathione, pyrrolidone carboxylic acid, etc.

[0036] Examples of the organic amine include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, and 2-amino-2-methyl-1-propanol.

[0037] Examples of polymer emulsions include acrylic resin emulsions, polyethyl acrylate emulsions, acrylic resin liquids, polyacrylic alkyl ester emulsions, polyvinyl acetate resin emulsions, and natural rubber latex.

[0038] Examples of vitamins include vitamins A, B1, B2, B6, C, E and their derivatives, pantothenic acid and its derivatives, biotin, etc.

[0039] Examples of the antioxidant include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, and gallic acid esters.

[0040] Examples of the antioxidant aid include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, and ethylenediaminetetraacetic acid.

[0041] Other possible ingredients include, for example, preservatives (ethylparaben, butylparaben, chlorphenesin, phenoxyethanol, sorbate, benzyl benzoate, sodium dehydroacetate, etc.); anti-inflammatory agents (for example, glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc.); whitening agents (for example, placenta extract, saxifrage extract, arbutin, etc.); various extracts (for example, Phellodendron bark, Coptis japonica, Lithospermum root, Peony root, Swertia japonica, Birch, Sage, Loquat, Carrot, Aloe, Mallow, Iris, Grape, Coix seed, Loofah, Lily, Saffron, Cnidium rhizome, Ginger, Hypericum perforatum, Ononis, Garlic, Capsicum anguicum, Citrus chinensis, Angelica acutiloba, Seaweed, etc.), activators (for example, royal jelly, photosensitizers, cholesterol inducers, body, palmitoyl proline, palmitoyl glutamate Mg, etc.); blood circulation promoters (e.g., nonylic acid vanillylamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantharides tincture, ichthammol, tannic acid, α-borneol, nicotinic acid tocopherol, inositol hexanicotinate, cyclandelate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, γ-oryzanol, etc.); antiseborrheic agents (e.g., sulfur, thianthol, etc.); anti-inflammatory agents (e.g., tranexamic acid, thiotaurine, hypotaurine, etc.), salts (e.g., sodium chloride, potassium chloride, magnesium chloride, calcium chloride, etc.), propylene carbonate, and anti-fading agents (drometrizole trisiloxane, etc.).

[0042] Furthermore, the cosmetic composition of the present invention may also appropriately contain caffeine, tannin, verapamil, tranexamic acid and derivatives thereof, various herbal extracts such as licorice, quince, and Japanese anemone, drugs such as tocopherol acetate, glycyrrhizic acid, glycyrrhizic acid and derivatives thereof or salts thereof, skin whitening agents such as vitamin C, magnesium ascorbyl phosphate, ascorbyl glucoside, arbutin, and kojic acid, and amino acids and derivatives thereof such as arginine and lysine.

[0043] The uses of the cosmetic composition of the present invention are not particularly limited as long as they are for general cosmetic applications, and examples of such uses include foaming cleansers such as solid soap, liquids (hand soap, body shampoo, shower gel), facial cleansing foam, facial cleansing gel, pump foam, powder (facial cleansing powder), hair shampoo, makeup remover (facial cleanser all-in-one type, oil type, two-phase separation type (oil / water), microemulsion (bicontinuous phase) type, lotion, emulsion, gel type), leave-on skin care lotions (single-phase (polyol-water) type, emulsion / serum, cream, hand cream, mask, makeup base, etc.), lip cosmetics such as lip balms / lip creams, lipsticks, and lip glosses, sunscreens (milk), etc., and the like. Examples of cosmetics include liquid / cream type, spray type, stick / balm type), color cosmetics include foundation, pressed powder, loose powder, face powder, liquid foundation, solid / balm type (concealer, etc.), eye color, blush, eyeliner, eyebrow, etc. Antiperspirants include aerosol spray type, roll-on type, and stick type. Hair care products include rinse, conditioner, treatment, brushing agent, styling agent, hair oil, hair spray, hair wax, hair cream, polish, oxidative hair dye, gray hair dye, black hair restorer, acidic hair dye, hair manicure, color rinse, perm agent, nail care, etc. EXAMPLES

[0044] (Method of Producing Acyl Lysine) (Acyl Lysine of Preparation Example 1) Acyl lysine was prepared as follows according to WO22-145471. After dissolving 5.7 g of sodium hydroxide in a mixed solution of 97.4 g of methanol and 62.7 g of water at room temperature, the solution was heated to about 50°C, and then 36.4 g of commercially available Nε-lauroyl lysine crystals were added and dissolved at the same temperature to obtain a solution of Nε-lauroyl lysine. Then, the solution of Nε-lauroyl lysine was added dropwise over 75 minutes to a hydrochloric acid solution (600 mL) with a concentration of 0.1 mol / L that had been cooled to 30°C or less, while maintaining the pH at 0.7 to 1.3. After the completion of the dropwise addition, the pH was adjusted to 7.0 with sodium hydroxide, and the precipitated crystals were filtered and dried under reduced pressure to obtain 36.0 g of white crystals. The median diameter of the volume-based distribution of the obtained crystals was 9 μm. (Acyl lysine of Preparation Example 2) White crystals were obtained according to Production Example 4 of WO01 / 014317. Various measurements of the obtained crystals revealed that the median diameter of the volume-based distribution of the obtained Nε-lauroyl lysine was 14 μm.

[0045] (Method of measuring various particle sizes of acyl lysine) A laser diffraction / scattering type particle size distribution measuring device (HORIBA, Partica LA-950) was used to measure the particle size distribution using the volume cumulative value. The results obtained by the measurement were analyzed using the software attached to the device to determine various particle sizes of number-based distribution and volume-based distribution. 20 mg of acyl lysine was added to 5 g of isopropyl alcohol, and the mixture was dispersed by exposing to ultrasonic waves for 30 minutes while stirring using an ultrasonic device with an output of 300 Watts. An appropriate amount of this dispersion was added to 500 mL of isopropyl alcohol according to the procedure of the device, and a dispersion sample of an appropriate concentration was prepared while checking the transparency. The sample was circulated at a flow rate of 10 mL / min and exposed to ultrasonic waves for 30 minutes to disperse the primary particles, and after degassing, the particle size distribution and various particle sizes of acyl lysine in the sample were determined using a flow cell.

[0046] (Sensory evaluation method) Six expert panelists were interviewed regarding the four evaluation items of moist feeling, adhesion to skin, rolling feeling, and soft feeling, and when the comparison control was scored as 5, each evaluation item was scored using the following method, and the score for that evaluation item was determined by the average score of the six panelists. Furthermore, each evaluation item was judged on a four-level scale from A to D based on the average score. (Score):(Evaluation) 6: Very good 5: Good 4: Fairly good 3: Somewhat poor 2: Bad 1: Very poor (Judgment): (Average score) A: 4.1 or higher B: 3.6~4.0 C: 3.1 to 3.5 D: 3.0 or less

[0047] (Method of producing powder composition) Each ingredient was weighed out to a total of 5.0 g at the mixing ratio (mass%) shown in the table, and all ingredients were put into a laboratory mill (Tescom Mill & Mixer TML162) at the same time. The mixture was mixed for 100 seconds (20 seconds, five times, with the powder adhering to the inner wall surface scraped off between each mix) to prepare the evaluation sample.

[0048] TIFF2025020717000001.tif47143 *1:Daito Kasei Kogyo RICE PW

[0049] TIFF2025020717000002.tif73145

[0050] (Prescription example) The cosmetic composition shown below was prepared according to a conventional method and was found to have a good feel to the touch.

[0051] (Liquid Foundation) A liquid foundation was prepared using the ingredients shown in the table as follows. Component A was heated (75°C) and mixed (4000 rpm) in a homomixer. Component B was added to component A, and heated (75°C) and mixed (4000 rpm) in a homomixer. Component C was further added to component A, and heated (75°C) and mixed (4000 rpm) in a homomixer. Component D was heated to 75°C and dissolved, and then gradually added to component A to emulsify. It was then cooled to 30°C while stirring with a paddle. The liquid foundation containing the powder composition of the present invention had an excellent feel. In addition, the sun protection factor (SPF) was measured by uniformly applying 32 mg of each emulsion composition to a PMMA plate (HELIOPLATE HD6 (50 mm x 50 mm)) using an SPF analyzer (UV-2000S SPF analyzer manufactured by Labsphere) and measuring the SPF value (n=10). The liquid foundation containing the powder composition of the present invention had an SPF value of 42.1 compared to 26.8 for the uncontaining foundation, demonstrating an SPF boost effect.

[0052] TIFF2025020717000003.tif182161 *1 DOWSIL SH 245 FLUID Dow *2 MORESCO White P-70 MORESCO *3 Escarole 557 Ashland *4 NIKKOL SI-10RV Nikko Chemicals *5 SYNCROWAX HRC Croda *6 Sun White P-1 Nikko Rika *7 NIKKOL SEFSOL-228 Nikko Chemicals *8 DOWSIL SH 556 FLUID Dow *9 KSG-15 Shin-Etsu Chemical *10 SA-TA-46R Miyoshi Kasei *11 SA-TR-10 Miyoshi Chemical *12 SA-YP-10 Miyoshi Chemical *13 SA-RPS-10 Miyoshi Kasei *14 SA-BP-10 Miyoshi Chemical *15 DPG-RF ADEKA *16 MALTITOL(M0601) Tokyo Chemical Industry *17 PRODUCTION TM 700 (50%) Ajinomoto *18 Concentrated glycerin Kao *19 Sorbitol Kao

[0053] (Pressed Foundation) A pressed foundation was prepared using the ingredients shown in the table as follows. Component B was heated and dissolved. Component A was weighed and mixed in a lab mixer for 30 seconds. Component B was added to component A, and the mixture was stirred in a lab mixer for an additional 5 minutes, and then mixed in a lab mixer for 30 seconds x 3 times. The mixture was sieved through a 150 μm mesh sieve to make the particle size uniform, and then filled into a metal dish and compression molded. The pressed foundation containing the powder composition of the present invention had an excellent feel.

[0054] TIFF2025020717000004.tif130148 *1 NAI-TA-46R Miyoshi Kasei *2 NAI-SERICITE FSE Miyoshi Kasei *3 NAI-MICA Y-2300 Miyoshi Kasei *4 CR-50 Ishihara Sangyo Kaisha *5 MT-100Z Teika *6 MZ 500 Teika *7 NAI-RPS-10 Miyoshi Kasei *8 NAI-YP-10 Miyoshi Kasei *9 NAI-BP-10 Miyoshi Kasei *10 Risokasta ODSHS High-grade alcohol industry *11 Salakos P-8 Nisshin Oillio Group *12 Pearlream 18 NIOF *13 Salakos 5408 Nisshin Oillio Group *14 EMALEX GWIS-110 Nippon Emulsion

[0055] (Loose Powder) A loose powder was prepared using the components shown in the table as follows. Component A was mixed and pulverized using a fine grinder. The obtained loose powder had excellent slipperiness, adhesion, and uniformity when applied, and had an excellent moist feeling after application.

[0056] TIFF2025020717000005.tif83144 *1 NAI-TA-46R Miyoshi Kasei *2 NAI-SERICITE FSE Miyoshi Kasei *3 NAI-MICA Y-2300 Miyoshi Kasei *4 CR-50 Ishihara Sangyo Kaisha *5 MT-100Z Teika *6 MZ 500 Teika *7 NAI-RPS-10 Miyoshi Kasei *8 NAI-YP-10 Miyoshi Kasei *9 NAI-BP-10 Miyoshi Kasei

[0057] (lipstick) The ingredients in the table were prepared as follows. Component A was heated and dissolved at 90°C or higher. Component B was weighed out at room temperature. Component (A+B) was dispersed using a roller (three times). Component (A+B) was heated and dissolved at 80°C or higher and vacuum degassed. The mixture was then filled into a direct-fill container at 75°C. It was then rapidly cooled in a freezer for 30 minutes, after which the opening was shaped at room temperature to obtain a lipstick. The resulting lipstick had a smooth feel.

[0058] TIFF2025020717000006.tif114154 *1 Salakos 5418V Nisshin Oillio Group *2 TCG-M High-grade alcohol industry *3 Kalcol 200GD Kao *4 ELDEW (registered trademark) PS-203R Ajinomoto *5 ABIL EM 90 Evonik *6 Crodamol TN Croda *7 Pearlream 18 NOF *8 ELDEW(R) PS-304 AJINOMOTO *9 Refined Paraffin Wax Nikko Rica *10 PMWAX 82 Nikko Rica *11 Salakos EH Nisshin Oillio Group *12 DK-PGT-PASTE R7 Daito Chemical Industry

[0059] (Sunscreen) A sunscreen was prepared using the ingredients shown in the table as follows: Component B, with the xanthan gum dispersed therein, is added to Component A. Components (A+B) are mixed until the xanthan gum is swelled. Add component C to components (A+B) and mix until uniform. In a separate container, mix component D until the solids are completely dissolved. Add component D to components (A+B+C) and mix until uniform. Further add component E and mix until uniform. Further add component F and mix until uniform. This sunscreen showed good SPF.

[0060] TIFF2025020717000007.tif140152 *1 Concentrated glycerin Kao *2 Propylene glycol ADEKA PG *3 KELTROL CG-T Sansho *4 HS-11P Ajinomoto *5 SL-205 Ajinomoto *6 PS-203R Ajinomoto *7 PARSOL 1789 DSM *8 PARSOL 340 DSM *9 PARSOL EHS DSM

[0061] (External skin preparations) Using the components shown in the table, topical skin preparations were prepared as follows. After heating and dissolving components A and B at 80°C, component A was added to component B while stirring. The mixture was emulsified using a homomixer (3000 rpm, 3 minutes, 80°C) and cooled to room temperature to obtain a skin topical preparation. The obtained skin topical preparation had an excellent moist feeling after application.

[0062] TIFF2025020717000008.tif125154 *1 Macadamia nut oil, Nikko Chemicals *2 Sugar Squalane, Nikko Chemicals *3 TCG-M High-grade alcohol industry *4 PS-203 Ajinomoto *5 Kalcol 220-8 0 Kao *6 Zemea Propanediol Iwase Cosfa *7 Kao concentrated glycerin *8 Nikkol SS-10V Nikko Chemicals *9 Nikkol Decagreen 1-M Nikko Chemicals *10 Keltroll CG-SFT Sansho *11 HS-11P Ajinomoto *12 CAE Ajinomoto *13 Iwata Chemical Industry *14 Junsei Chemical

[0063] (Rinse-off cleaner) A rinse-off cleanser was prepared using the components shown in the table as follows. Component A was stirred with a disperser to check for dissolution. Component B was added while stirring component A and dispersed. Separately, component D was added while stirring mixed component C with a disperser and dispersed. Component (C+D) was added while stirring components (A+B) to obtain a rinse-off cleanser. The resulting rinse-off cleanser was smooth when rinsing and had a moist feel after washing.

[0064] TIFF2025020717000009.tif114151 *1 CS-22 Ajinomoto *2 Dehiton AB30 Cognis *3 Rodicare L32-E Rodica Nikka *4 Sunsoft No.700P-2 Taiyo Chemical *5 Zemea Propanediol Dupont *6 Refined jojoba oil, Koei Kogyo *7 Nikkol Macadamia Nut Oil, Nikko Chemicals *8 JAGUAR S Rhodia Nikka

[0065] (Body shampoo cleanser) A body shampoo cleanser was prepared using the ingredients shown in the table as follows: Component F was dispersed in component G. Component B was mixed. Component A was added to component B, and the mixture was heated to 75°C while stirring and neutralized. Components C, D, and E were added in that order while stirring. The mixture was cooled to 40°C while stirring, and component F was added and dissolved. Component G was added, and the mixture was cooled to room temperature while stirring to obtain a rinse-off cleanser. The obtained body shampoo cleanser had excellent smoothness when rinsing, and also had an excellent moist feel after washing.

[0066] TIFF2025020717000010.tif177142 *1 NAA-122 NOF *2 NAA-142 NOF *3 NAA-160 NOF *4 Emeral 270J Kao *5 Softazoline CPB Kawaken Fine Chemicals *6 GCK-12K Ajinomoto *7 Emarex EG-di-SE Nippon Emulsion *8 Metrolose 90SH-4000 Shin-Etsu Chemical

[0067] (Hair shampoo cleanser) A hair shampoo was prepared using the ingredients shown in the table as follows. Dissolve component A with stirring at 60-70°C. After confirming that component A has dissolved, add component B. After confirming that it has dissolved uniformly, add component C and adjust the pH to 5.5. Cool to 45°C while stirring, and add component D. Cool to room temperature while stirring to make the product. A hair shampoo was obtained. The resulting hair shampoo was smooth when rinsing and had a moist feel after washing.

[0068] TIFF2025020717000011.tif130157 *1 Emeral E-27C Kao *2 Dehiton K Cognis Japan *3 Sunsoft No.750 Taiyo Chemical *4 Marquardt 2001 Matsumoto Trading *5 Jaguar EXCEL Sansho *6 Emanon 3299V Kao *7 Esthepearl 30, Nikko Chemicals

Claims

1. A cosmetic composition comprising (A) an acyl lysine and (B) rice flour, the powder composition having a median diameter of a volume-based distribution of the acyl lysine (A) being 9 μm or less.

2. 2. The cosmetic composition according to claim 1, wherein, when the entire powder composition is taken as 100% by mass, the content of (A) is 2 to 40% by mass, the content of (B) is 3 to 95% by mass, and the total amount of (A) and (B) is 10% by mass or more.

3. The cosmetic composition according to claim 1, which is an external preparation for the skin.

4. The cosmetic composition according to claim 1, which is a rinse-off cleanser.

5. 2. The cosmetic composition according to claim 1, which is a makeup cosmetic.

6. The cosmetic composition according to any one of claims 1 to 5, comprising the powder composition and an inorganic powder.

7. The cosmetic composition according to claim 6, further comprising an organic powder.

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