Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/04—Dispersions; Emulsions
  • A61K8/06—Emulsions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K8/25—Silicon; Compounds thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/31—Hydrocarbons
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/37—Esters of carboxylic acids
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/39—Derivatives containing from 2 to 10 oxyalkylene groups
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
  • A61K8/89—Polysiloxanes
  • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
  • A61K8/89—Polysiloxanes
  • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
  • A61K8/894—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin

Definitions

• the present invention relates to cosmetics, and in particular to water-in-oil emulsion cosmetics.
• a cosmetic preparation comprising: [2] The cosmetic preparation according to [1], wherein (C) the
• the cosmetic according to the present invention contains (A) an organically modified clay mineral, (B) a surfactant, (C) a powdered oil, (D) an oily component other than the powdered oil, and (E) water as essential components. Furthermore, the cosmetic according to the present invention may further contain (E) polyethylene glycol, (F) a water-soluble cellulose ether, and other components depending on the purpose. In addition, the cosmetic according to the present invention is preferably a water-in-oil emulsion cosmetic.
• the cosmetic according to the present invention can simultaneously improve the richness during application, the lack of stickiness after application, the quickness of blending, and the smoothness after application. Furthermore, the cosmetic according to the present invention can improve the formulation stability (immediately after application). Below, each component contained in the cosmetic according to the present invention will be described in detail.
• the surfactant is not particularly limited, and any surfactant known for use in cosmetics can be used.
• the surfactant it is preferable to use a nonionic surfactant.
• the HLB of the nonionic surfactant is preferably 0.1 to 7.5, more preferably 1.0 to 7.2, and even more preferably 2.0 to 7.0.
• the HLB (hydrophile-lipophile balance) of the nonionic surfactant can be determined by the Griffin method.
• the nonionic surfactant is preferably selected from the group consisting of polyether-modified silicones, polyglycerin-modified silicones, polyglycerin fatty acid esters, and polyoxyalkylene fatty acid esters.
• polyglycerol fatty acid esters examples include polyglyceryl-2 diisostearate, polyglyceryl-6 triisostearate, polyglyceryl-10 pentastearate, polyglyceryl-10 pentaisostearate, polyglyceryl-10 pentaoleate, and polyglyceryl-6 polyricinoleate.
• polyoxyalkylene fatty acid esters include PEG-8 diisostearate, PEG-4 sorbitan triisostearate, and PEG-6 sorbitan hexastearate.
• the nonionic surfactant is more preferably selected from the group consisting of PEG-9 polydimethylsiloxyethyl dimethicone, PEG-10 dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PEG/PPG-10/1 dimethicone, bis-butyl dimethicone polyglyceryl-3, polyglyceryl-2 diisostearate, polyglyceryl-6 polyricinoleate, and PEG-8 diisostearate.
• the content of (B) the surfactant is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.5% by mass or more and 7.0% by mass or less, and even more preferably 1.0% by mass or more and 5.0% by mass or less, relative to the total mass of the cosmetic. If the content of the surfactant is within the above numerical range, many of the characteristics of the cosmetic during use (particularly the rich feeling during application, the lack of stickiness after application, the quickness of absorption, and the formulation stability) will be good.
• the powdered oil and fat in the present invention is a solid oil and fat in a powder form at room temperature (20°C).
• the melting point of the powdered oil and fat is preferably 25°C or more and 50°C or less, more preferably 25°C or more and 45°C or less, even more preferably 25°C or more and 40°C or less, and even more preferably 25°C or more and 35°C or less.
• the melting point of the powdered oil and fat can be measured by a conventional method using a differential scanning calorimeter (DSC), and the value of the peak top of the DSC chart is taken as the melting point. If the melting point of the powdered oil and fat is within the above numerical range, it will easily melt when applied to the skin, and heat will be taken away from the skin, making it easier to feel a cool sensation.
• DSC differential scanning calorimeter
• the powdered oil contains one or more XXX triglycerides having fatty acid residue X with carbon number x at positions 1 to 3, and one or more X2Y triglycerides in which one of the fatty acid residues X in the XXX triglyceride is replaced with fatty acid residue Y with carbon number y.
• the fatty acid residue X may be a saturated or unsaturated fatty acid residue.
• the carbon number x of the fatty acid residue X in the XXX triglyceride is an integer selected from 8 to 12, and is preferably 10.
• Specific examples of the fatty acid residue X include saturated fatty acid residues such as caprylic acid (C8:0), capric acid (C10:0), and lauric acid (C12:0), and is preferably capric acid.
• the carbon number y of the fatty acid residue Y in the XXX triglyceride is each independently x+2 to x+8, and is preferably x+4 to x+8.
• Specific examples of the fatty acid residue Y include saturated fatty acid residues such as myristic acid (C14:0), palmitic acid (C16:0), and stearic acid (C18:0), and is preferably myristic acid.
• the content of XXX triglycerides is 80-99% by mass, preferably 90-99% by mass, and the content of X2Y triglycerides is 20-1% by mass, preferably 10-1% by mass.
• the presence of a small amount of X2Y triglycerides with a long chain length of one fatty acid causes the X2Y triglycerides to be mixed into the fat crystals composed of XXX triglycerides when the X2Y triglycerides are cooled and crystallized from a molten state, disrupting the continuous crystal growth of the XXX triglycerides, resulting in a solid product crystallized in a very sparse state (a state in which the volume has increased and voids have been formed).
• the obtained solid product has the form of an aggregate of powdery fats and oils crystallized in a very sparse state, and is brittle and crumbles even with a light impact, easily becoming powdery.
• the powdered fat obtained in the above step (d) may be obtained by a step (e) of pulverizing the solid obtained after the cooling in the step (d) to obtain a powdered fat.
• the triglyceride used as the raw material of the reaction substrate may include various triglycerides other than the above-mentioned XXX triglyceride and YYY triglyceride, so long as the effects of the present invention are not impaired.
• examples of other triglycerides include X2Y triglycerides in which one of the fatty acid residues X in the above-mentioned XXX triglyceride is replaced with fatty acid residue Y, and XY2 triglycerides in which two of the fatty acid residues X in the above-mentioned XXX triglyceride are replaced with fatty acid residue Y.
• the mixing may be carried out by any known mixing method as long as a homogeneous reaction substrate can be obtained.
• the mixing may be carried out by using a paddle mixer, an Ajihomo mixer, a Disper mixer, or the like.
• the mixing may be performed under heating as necessary.
• the heating temperature is preferably about the same as the heating temperature in the step (b) described below, for example, 50 to 120°C, preferably 60 to 100°C, more preferably 70 to 90°C, and even more preferably 80°C.
• an enzyme is added as a catalyst, it is preferable that water is not present as much as possible before the enzyme is added.
• the amount of water before the enzyme is added is, for example, 10% by mass or less, preferably 0.001 to 5% by mass, more preferably 0.01 to 3% by mass, and even more preferably 0.01 to 2% by mass, based on the mass of the entire raw material. This mixing may be continued for, for example, 5 to 60 minutes, preferably 10 to 50 minutes, and more preferably 20 to 40 minutes.
• the reaction substrate (a mixture containing XXX triglyceride and YYY triglyceride) is heated and subjected to an ester exchange reaction in the presence of a catalyst to obtain an ester exchange reaction product (an oil or fat composition containing XXX triglyceride and X2Y triglyceride).
• the transesterification reaction is not particularly limited, and any commonly used transesterification reaction can be used.
• the heating is carried out at, for example, 50 to 120°C, preferably 60 to 100°C, more preferably 70 to 90°C, and further preferably 80°C.
• the catalyst may be an enzyme, an alkali metal alkoxide, an alkaline earth metal alkoxide, etc.
• the immobilized enzyme may be an enzyme immobilized on a carrier such as silica, celite, diatomaceous earth, perlite, polyvinyl alcohol, anion exchange resin, phenol adsorption resin, hydrophobic carrier, cation exchange resin, or chelating resin.
• a carrier such as silica, celite, diatomaceous earth, perlite, polyvinyl alcohol, anion exchange resin, phenol adsorption resin, hydrophobic carrier, cation exchange resin, or chelating resin.
• alkali metal alkoxides and alkaline earth metal alkoxides usable as catalysts lithium, sodium, potassium, etc. can be preferably used as the alkali metal.
• Magnesium and calcium can be preferably used as the alkaline earth metal.
• the alkoxides include methoxide, ethoxide, propoxide, n-butoxide, t-butoxide, etc., and methoxide and ethoxide are preferred.
• examples of the preferred alkali metal alkoxides and alkaline earth metal alkoxides include sodium methoxide, sodium ethoxide, magnesium methoxide, magnesium ethoxide, etc., and sodium methoxide is more preferred.
• the reaction temperature in the direct ester synthesis of the oil and fat composition of the present invention may be any temperature at which the water produced by the esterification reaction can be removed from the system, and is preferably 120° C. to 300° C., more preferably 150° C. to 270° C., and even more preferably 180° C. to 250° C. In particular, by carrying out the reaction at 180 to 250° C., X2Y triglycerides can be produced efficiently.
• a catalyst for promoting the esterification reaction may be used.
• the catalyst include an acid catalyst and an alkoxide of an alkaline earth metal.
• the amount of the catalyst used is preferably about 0.001 to 1% by mass based on the total mass of the reaction raw materials.
• the catalyst and unreacted raw materials can be removed by carrying out known purification treatments such as washing with water, alkali deoxidation and/or deoxidation under reduced pressure, and adsorption treatment. Furthermore, the obtained reaction product can be further purified by carrying out decolorization and deodorization treatment.
• step (b) Step of Obtaining the Oil-and-Fat Composition in a Molten State
• the oil-and-fat composition obtained in the step (a) is in a molten state when it is prepared, it is cooled as it is without heating. However, if it is not in a molten state when it is obtained, it is optionally heated to melt the triglycerides contained in the oil-and-fat composition to obtain a molten oil-and-fat composition.
• the oil composition is suitably heated to a temperature equal to or higher than the melting point of the triglycerides contained in the oil composition, in particular to a temperature capable of melting XXX triglycerides and X2Y triglycerides, for example, 70 to 200° C., preferably 75 to 150° C., and more preferably 80 to 100° C.
• the heating is suitably continued for, for example, 0.5 to 3 hours, preferably 0.5 to 2 hours, and more preferably 0.5 to 1 hour.
• step (d) Step of cooling the molten oil/fat composition to obtain a powdered oil/fat composition
• the molten oil/fat composition obtained in step (a) or (b) above is further cooled to form a powdered oil.
• cooling the molten oil and fat composition means keeping the molten oil and fat composition at a temperature lower than the melting point of the oil and fat composition.
• a temperature lower than the melting point of the oil and fat composition is, for example, a temperature 1 to 30°C lower than the melting point, preferably a temperature 1 to 20°C lower than the melting point, and more preferably a temperature 1 to 15°C lower than the melting point.
• the cooling of the molten oil and fat composition is carried out, for example, when x is 8 to 10, by cooling so that the final temperature is preferably 10 to 30°C, more preferably 15 to 25°C, and even more preferably 18 to 22°C.
• the final temperature in cooling is preferably 30 to 40°C, more preferably 32 to 38°C, and even more preferably 33 to 37°C.
• step (c) it may be necessary to leave the mixture to stand for, for example, 2 to 8 days, specifically 3 to 7 days, and more specifically, for about 6 days.
• step (c) Powder Formation Promotion Step Furthermore, between the above steps (a) or (b) and (d), as an optional step for promoting powder formation (c), the molten oil and fat composition used in step (d) may be treated with a seeding method (c1), a tempering method (c2) and/or a preliminary cooling method (c3). These optional steps (c1) to (c3) may be performed alone or in combination of a plurality of steps.
• "between step (a) or (b) and step (d)” means during step (a) or (b), after step (a) or (b) and before step (d), and during step (d).
• an oil-and-fat powder containing preferably 80% by mass or more, more preferably 90% by mass or more of XXX triglycerides having the same carbon number as the XXX triglycerides in the molten oil-and-fat composition obtained in step (b) is prepared as a core (seed) component.
• the temperature of the molten oil-and-fat composition reaches, for example, a temperature of the final cooling temperature ⁇ 0 to +10°C, preferably +5 to +10°C, during cooling of the molten oil-and-fat composition, 0.1 to 1 part by mass, preferably 0.2 to 0.8 parts by mass of this core oil-and-fat powder is added to 100 parts by mass of the molten oil-and-fat composition, thereby promoting powderization of the oil-and-fat composition.
• the tempering method is a method for promoting powderization of an oil or fat composition by cooling the oil or fat composition in a molten state, by cooling the oil or fat composition once to a temperature lower than the cooling temperature in step (d), for example, a temperature lower by 5 to 20° C., preferably a temperature lower by 7 to 15° C., and more preferably about 10° C., for preferably 10 to 120 minutes, and more preferably about 30 to 90 minutes, before leaving the oil or fat composition to stand at the final cooling temperature.
• step (e) Step of pulverizing the solid material to obtain powdered fats and oils
• the step of obtaining powdered fats and oils by cooling in the above step (d) may be carried out, more specifically, by a step (e) of pulverizing the solid material obtained by the cooling in step (d) to obtain powdered fats and oils.
• the oil composition containing the XXX triglyceride and the X2Y triglyceride is melted to obtain a molten oil composition, which is then cooled to form a solid having voids and a volume larger than that of the oil composition in the molten state.
• liquid oils examples include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, 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, etc.
• solid fats and oils examples include 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 Rice Kernel Oil, hardened oil, beef foot fat, Japan Rice, and hardened castor oil.
• higher fatty acids examples include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tallic acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).
• the content of oily components other than (D) powdered oils and fats can be adjusted as appropriate depending on the content of powdered oils and fats.
• the total content of (C) powdered oils and fats and oily components other than (D) powdered oils and fats is preferably 10% by mass or more and 40% by mass or less, more preferably 13% by mass or more and 37% by mass or less, even more preferably 15% by mass or more and 35% by mass or less, and even more preferably 17% by mass or more and 33% by mass or less, relative to the total mass of the cosmetic.
• the blending ratio (A/C) of the organically modified clay mineral (A) to the powdered oil (C) in the cosmetic is, on a mass basis, preferably 0.1 or more and 5 or less, more preferably 0.15 or more and 4 or less, even more preferably 0.2 or more and 3 or less, and even more preferably 0.25 or more and 2 or less.
• the blending ratio (B/C) of the surfactant (B) to the powdery oil (C) in the cosmetic is, on a mass basis, preferably 0.1 or more and 5 or less, more preferably 0.15 or more and 4 or less, even more preferably 0.2 or more and 3 or less, and even more preferably 0.25 or more and 2 or less.
• the blending ratio (C/(C+D)) of the powdered oil (C) in the cosmetic to the total of the powdered oil (C) and the oily component (D) other than the powdered oil (C) is, on a mass basis, preferably 0.01 or more and 0.5 or less, more preferably 0.02 or more and 0.45 or less, even more preferably 0.04 or more and 0.40 or less, and still more preferably 0.05 or more and 0.35 or less.
• the content of (E) water can be adjusted appropriately depending on the content of other ingredients, and is, for example, preferably from 20% by mass to 80% by mass, more preferably from 30% by mass to 70% by mass, relative to the total mass of the cosmetic.
• the degree of polymerization of the polyethylene glycol (F) is not particularly limited, and any polyethylene glycol known for use in cosmetics can be used.
• the weight-average molecular weight of the polyethylene glycol is not particularly limited, but is preferably 150 to 23,000, more preferably 3,500 to 12,000.
• the content of (F) polyethylene glycol is preferably 0.1% by mass or more and 10% by mass or less, more preferably 0.2% by mass or more and 5% by mass or less, and even more preferably 0.5% by mass or more and 3% by mass or less, based on the total mass of the cosmetic.
• Water-soluble cellulose ether is not particularly limited, and water-soluble cellulose ethers conventionally known for cosmetics can be used. Specifically, water-soluble cellulose ethers include methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, cationic hydroxyethyl cellulose, hydrophobically modified hydroxyethyl cellulose, or cationic hydrophobically modified hydroxyethyl cellulose. Among these, hydroxyethyl cellulose, carboxymethyl cellulose, and hydroxypropyl methyl cellulose are preferred, and hydroxyethyl cellulose and carboxymethyl cellulose are more preferred.
• carboxymethyl cellulose contains a salt
• the salt is not particularly limited.
• Preferred examples of carboxymethyl cellulose salts include alkali metal salts such as sodium and potassium, alkaline earth metal salts such as calcium and magnesium, organic amine salts such as ammonium, triethanolamine, and triethylamine, and basic amino acid salts such as lysine and arginine.
• alkali metal salts such as sodium and potassium
• alkaline earth metal salts such as calcium and magnesium
• organic amine salts such as ammonium, triethanolamine, and triethylamine
• basic amino acid salts such as lysine and arginine.
• These water-soluble cellulose ethers can be used alone or in combination. These are not particularly limited by their origin, such as natural or synthetic.
• water-soluble cellulose ether commercially available products may be used.
• a commercially available hydroxyethyl cellulose product may be NATROSOL 250HHR (manufactured by ASHLAND SPECIALTY INGREDIENTS)
• a commercially available carboxymethyl cellulose product may be CMC Daicel 1170, CMC Daicel 1180, CMC Daicel 1270, CMC Daicel 1280, CMC Daicel 1290, CMC Daicel 1350, CMC Daicel 1380 (all manufactured by Daicel Chemical Industries, Ltd.).
• the content of (G) water-soluble cellulose ether is preferably 0.01% by mass or more and 1% by mass or less, more preferably 0.02% by mass or more and 0.5% by mass or less, and even more preferably 0.05% by mass or more and 0.3% by mass or less, based on the total mass of the cosmetic.
• the cosmetic preparation according to the present invention may contain other components that can be blended into the cosmetic preparation in addition to the above-mentioned components (A) to (F), so long as the effects of the present invention are not impaired.
• Such other components include aqueous solvents, UV absorbers, moisturizers, dispersants, neutralizing agents, chelating agents, preservatives, antioxidants, stabilizers, coloring agents, fragrances, etc. These components can be blended appropriately depending on the formulation of the cosmetic preparation.
• the aqueous solvent is not particularly limited, and any conventionally known aqueous solvent can be used.
• an alcohol can be used as the aqueous solvent.
• a lower alcohol such as ethanol, 1-propanol, 2-propanol, isobutyl alcohol, or t-butyl alcohol can be used as the alcohol.
• ultraviolet absorbers examples include benzoic acid-based ultraviolet absorbers (e.g., 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, N,N-dimethyl PABA ethyl ester, etc.); anthranilic acid-based ultraviolet absorbers (e.g., homomenthyl-N-acetylanthranilate, etc.); salicylic acid-based ultraviolet absorbers (e.g., amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p- isopropanol phenyl sal
• the moisturizer is not particularly limited, and any moisturizer known in the art for use in cosmetics can be used.
• moisturizers include polyhydric alcohols and glycol ethers, more specifically, glycerin, propanediol, ethylene glycol, diethylene glycol, dipropylene glycol, 1,3-butylene glycol, hexamethylene glycol, isoprene glycol, polyethylene glycol, hyaluronic acid, xylitol, sorbitol, maltitol, and diglycerin (EO)PO adducts.
• polyhydric alcohols and glycol ethers more specifically, glycerin, propanediol, ethylene glycol, diethylene glycol, dipropylene glycol, 1,3-butylene glycol, hexamethylene glycol, isoprene glycol, polyethylene glycol, hyaluronic acid, xylitol, sorbitol, maltitol, and diglycerin
• the cosmetic preparation according to the present invention can be produced according to conventional methods, and the emulsification method is not particularly limited.
• Examples of the cosmetic according to the present invention include skin care cosmetics (e.g., lotion, milky lotion, cream, beauty essence, pack, mask, etc.), makeup cosmetics (e.g., foundation, makeup base, etc.), skin cleansing agents (e.g., face wash, makeup remover, etc.), sunscreen cosmetics, ointments, etc.
• skin care cosmetics e.g., lotion, milky lotion, cream, beauty essence, pack, mask, etc.
• makeup cosmetics e.g., foundation, makeup base, etc.
• skin cleansing agents e.g., face wash, makeup remover, etc.
• sunscreen cosmetics e.g., ointments, etc.
• Examples 1 to 14, Comparative Examples 1 to 2 ⁇ Preparation of Cosmetics> Water-in-oil emulsion cosmetics of each Example and Comparative Example were prepared according to the formulations shown in Tables 1 to 3. In Tables 1 to 3, the blending ratio of each component is expressed as mass %. The triglyceride composition of the powdered oil used in the cosmetic was analyzed by the following method.

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Citations (9)

• 2023
  • 2023-12-06 JP JP2024567372A patent/JPWO2024142802A1/ja active Pending
  • 2023-12-06 WO PCT/JP2023/043566 patent/WO2024142802A1/ja not_active Ceased

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