Cosmetics
By integrating polyoxyethylene dialkyl esters and alkyl ethers with niacin derivatives, the cosmetic composition addresses issues of spreadability and absorption, ensuring a pleasant tactile experience and maintaining cosmetic efficacy.
Patent Information
- Application Number
- JP2024227778
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-07-06
AI Technical Summary
Existing cosmetic compositions containing niacin or its derivatives often compromise usability, particularly in terms of spreadability and absorption, leading to an unsatisfactory tactile experience during application.
Incorporating specific polyoxyethylene dialkyl esters and polyoxyethylene alkyl ethers, represented by general formulas (1) and (2), along with niacin or its derivatives, to enhance the cosmetic composition's spreadability and absorption, while suppressing stickiness.
The composition achieves improved spreadability and quick absorption, maintaining high cosmetic efficacy and a pleasant tactile feel, even with increased niacin content, without compromising usability.
Smart Images

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Abstract
Description
[Technical Field]
[0001] This invention relates to cosmetics. [Background technology]
[0002] Many cosmetics are known to contain beauty ingredients that provide cosmetic effects such as wrinkle reduction and skin whitening. However, it has been pointed out that the inclusion of beauty ingredients such as niacin can reduce the feel of the cosmetic product. For this reason, various studies have been conducted to improve the feel of cosmetics.
[0003] For example, Patent Document 1 describes that the feel of an oil-in-water emulsion cosmetic can be improved by including (A) niacinamide, (B) a vegetable oil that is a triglyceride, (C) a solid higher alcohol fatty acid ester, and (D) a phytosteryl dimer acid derivative in predetermined amounts. [Prior art documents] [Patent Documents]
[0004] [Patent Document 1] Japanese Patent Publication No. 2024-62903 [Overview of the project] [Problems that the invention aims to solve]
[0005] However, there are aspects of the feel of cosmetics that have not been adequately considered, and some users may not be fully satisfied with the experience. For example, Patent Document 1 does not examine aspects of the feel of cosmetics during application, such as how easily they spread and how quickly they absorb.
[0006] In view of the above, one aspect of the present invention aims to provide a cosmetic product that contains beauty ingredients such as niacin, while also having a pleasant feel, such as being easy to spread and quickly absorbed. [Means for solving the problem]
[0007] One embodiment of the cosmetic composition according to the present invention is: (a) Niacin or its derivatives, (b) At least one selected from the group consisting of polyoxyethylene dialkyl esters and polyoxyethylene dialkyl ethers represented by the following general formula (1):
[0008] [ka] (However, in the above general formula (1), R A and R B Each of these independently represents a linear aliphatic acid residue or linear aliphatic alcohol residue with 16 to 24 carbon atoms, and n is an integer between 4 and 15. (c) At least one selected from the group consisting of polyoxyethylene alkyl esters and polyoxyethylene alkyl ethers represented by the following general formula (2):
[0009] [ka] (However, in the above general formula (2), R C (where n represents a linear aliphatic residue, linear aliphatic acid residue, or linear aliphatic alcohol residue with 16 to 24 carbon atoms, and n is an integer between 5 and 30.) It is a cosmetic product containing [the specified ingredient]. [Effects of the Invention]
[0010] According to one aspect of the present invention, it is possible to provide a cosmetic product that contains beauty ingredients such as niacin, while also having a pleasant feel, such as being easy to spread and quickly absorbed. [Modes for carrying out the invention]
[0011] Hereinafter, embodiments of the present invention will be described in detail. Note that the embodiments are not limited by the following description and can be appropriately changed without departing from the gist of the present invention. In this specification, "~" indicating a numerical range means including the numerical values described before and after it as the lower limit value and the upper limit value, unless otherwise specified.
[0012] (Cosmetics) The cosmetics according to one embodiment contain (a) niacin or its derivative. Niacin is a general term for nicotinic acid and niacinamide (also called nicotinic acid amide, vitamin B3), which is a derivative of nicotinic acid. Although the inclusion of component (a) can obtain cosmetic effects such as improvement of wrinkles and whitening, it has been pointed out that various usability decreases. Therefore, there has been a demand for cosmetics with good usability, especially cosmetics that can obtain satisfactory usability even when the content of component (a) is increased.
[0013] In contrast, as a result of intensive studies, the present inventors have found that component (a) and (b) the following general formula (1)
[0014] [Chemical formula] (However, in general formula (1), R A and R B each independently represent a linear aliphatic acid residue or a linear aliphatic alcohol residue having 16 to 24 carbon atoms, and n represents an integer of 4 to 15), at least one selected from the group consisting of polyoxyethylene dialkyl esters and polyoxyethylene dialkyl ethers, and (c) the following general formula (2)
[0015] [Chemical formula] (However, in general formula (2), R CWe have found that a cosmetic composition containing at least one selected from the group consisting of polyoxyethylene alkyl esters and polyoxyethylene alkyl ethers represented by (where represents a linear aliphatic residue, linear aliphatic acid residue, or linear aliphatic alcohol residue having 16 to 24 carbon atoms, and n is an integer from 5 to 30) yields a cosmetic composition with a good feel, in particular, one that exhibits good lightness of spreadability and quick absorption. The aspects of feel, namely lightness of spreadability and quick absorption, are especially important for improving the tactile feel of the cosmetic when it is being applied. Furthermore, we have found that the above composition also suppresses stickiness of the cosmetic composition. This makes it possible to provide a cosmetic composition that contains component (a) with high cosmetic efficacy and has a good feel.
[0016] (a) Niacin or its derivatives (a) Niacin or its derivatives provide cosmetic effects such as wrinkle improvement, skin whitening, prevention of blemishes, firmness and elasticity, and moisturizing. As mentioned above, niacin means one or more of nicotinic acid and nicotinamide (niacinamide). Examples of niacin derivatives include derivatives of nicotinamide, such as nicotinic acid esters (tocopherol nicotinate, benzyl nicotinate, methyl nicotinate, ethyl nicotinate, etc.) and nicotinic acid salts. Of the above, it is preferable that component (a) contains niacinamide, and more preferable that component (a) consists of niacinamide, due to its high cosmetic effect.
[0017] (a) The above compounds can be used as components, either individually or in combination of two or more. Furthermore, components (a) may be extracted from natural products or synthesized by known methods.
[0018] In the cosmetic according to one embodiment, the content of the component (a) is not particularly limited and can be appropriately selected according to the purpose. However, with respect to the total mass of the cosmetic, 0.1% by mass to 12% by mass is preferable, 1% by mass to 10% by mass is more preferable, and 3% by mass to 10% by mass is even more preferable. When the content of the component (c) is 0.1% by mass to 12% by mass, a sufficient cosmetic effect can be obtained. Further, even with the content within the above range, in the cosmetic according to this embodiment, the lightness of elongation and the quickness of adaptability are not impaired, and the usability is good.
[0019] <At least one selected from the group consisting of polyoxyethylene dialkyl esters and polyoxyethylene dialkyl ethers represented by the general formula (1) (b)> At least one selected from the group consisting of polyoxyethylene dialkyl esters and polyoxyethylene dialkyl ethers contained in the cosmetic according to one embodiment is a compound represented by the following general formula (1) (hereinafter, also referred to as "component (b)"). In addition, the bonding mode of the polyoxyethylene chain and the alkyl group in one molecule may be an ester, an ether, or both may be included.
[0020]
Chem.
[0021] In this specification, "each independently" means that R A and R B may be different linear aliphatic acid residues or linear aliphatic alcohol residues having 16 to 24 carbon atoms, or may be the same linear aliphatic acid residue or linear aliphatic alcohol residue having 16 to 24 carbon atoms.
[0022] In the general formula (1), R A and R BEach of these independently represents a linear aliphatic acid residue or a linear aliphatic alcohol residue having 16 to 24 carbon atoms, but it is preferable that they are linear aliphatic acid residues having 16 to 24 carbon atoms.
[0023] (b)Specific examples of the component include polyoxyethylene (4) distearic acid (PEG-4 distearate), polyoxyethylene (6) distearic acid (PEG-6 distearate), polyoxyethylene (8) distearic acid (PEG-8 distearate), polyoxyethylene (12) distearic acid (PEG-12 distearate), steareth-4 stearate, steareth-6 stearate, steareth-9 stearate, etc. These may be used individually or in combination of two or more. The number in parentheses indicates the average number of moles of ethylene oxide added, represented by n in general formula (1). Of the above, polyoxyethylene (6) distearic acid (PEG-6 distearate) is particularly preferred because it can improve the feel of the cosmetic product.
[0024] (b) The component may be synthesized as appropriate by known methods, or a commercially available product may be used. Examples of commercially available components of (b) include EMALEX 200di-S (PEG-4 distearate), EMALEX 300di-S (PEG-6 distearate), EMALEX 400di-S (PEG-8 distearate), EMALEX 600di-S (PEG-12 distearate), EMALEX SWS-4 (Steareth-4 stearate), EMALEX SWS-6 (Steareth-6 stearate), and EMALEX SWS-9 (Steareth-9 stearate) (all manufactured by Nippon Emulsion Co., Ltd.).
[0025] In one embodiment, by including component (b) and component (c) (described in detail later), it becomes easier to form an α-gel in the cosmetic depending on the water content. "α-gel" refers to an aggregate formed in water by a higher aliphatic alcohol and a hydrophilic surfactant, which takes on an α structure (Shoji Fukushima, "Physical Chemistry of Cetyl Alcohol," Fragrance Journal Co., Ltd.). In the cosmetic according to one embodiment, component (b) and component (c) mainly form an aggregate. The formation of an α-gel is preferable in that high emulsification stability can be obtained. In the cosmetic, it is thought that the α-gel or a ripple phase capable of forming an α-gel (a phase in which the hydrocarbon chain portion is close to a crystalline state but the film is curved) holds component (a), which tends to cause a decrease in usability, so that a good usability is maintained by the presence of component (a) or by the presence of component (a) in a high content. In particular, the lightness of spreadability and quick absorption are well maintained, and stickiness is also suppressed.
[0026] In a cosmetic composition according to one embodiment, there are no particular restrictions on the content of component (b), and it can be appropriately selected depending on the purpose, but it is preferably 0.01% to 5% by mass, more preferably 0.1% to 5% by mass, and even more preferably 0.1% to 0.5% by mass, relative to the total mass of the cosmetic composition. When the content of component (b) is 0.01% to 5% by mass relative to the total mass of the cosmetic composition, an appropriate viscosity is obtained, and the ease of spreading and quick absorption are good. Furthermore, stickiness can be suppressed.
[0027] The ratio of the content of component (b) to the total content of component (b) and component (c), described later, is not particularly limited, but 15% to 45% by mass is preferred, and 20% to 40% by mass is more preferred. When the content of component (b) to the total content of component (b) and component (c) is 15% to 45% by mass, it is easy to form an α-gel phase. Therefore, despite the presence of component (a), it is possible to achieve good spreadability and quick absorption, and stickiness is also suppressed.
[0028] Furthermore, the total content of component (b) and component (c) is preferably 0.03% to 8% by mass, more preferably 0.05% to 5% by mass, and even more preferably 0.1% to 1% by mass, based on the total mass of the cosmetic. By setting the total content of component (b) and component (c) to 0.03% to 8% by mass, the action of the surfactant is enhanced, high emulsification stability is obtained, and the above-mentioned feel can be maintained well.
[0029] <(c) At least one selected from the group consisting of polyoxyethylene alkyl esters and polyoxyethylene alkyl ethers represented by general formula (2)> At least one of the components selected from the group consisting of polyoxyethylene alkyl esters and polyoxyethylene alkyl ethers contained in the cosmetic composition according to one embodiment is a compound represented by the following general formula (2) (hereinafter also referred to as "component (c)"). The bonding mode between the polyoxyethylene chain and the alkyl group in one molecule may be an ester, an ether, or both.
[0030] [ka] (However, in general formula (2), R C (where n represents a linear aliphatic residue, linear aliphatic acid residue, or linear aliphatic alcohol residue with 16 to 24 carbon atoms, and n is an integer between 5 and 30).
[0031] In general formula (2), R C This represents a linear aliphatic residue, a linear aliphatic acid residue, or a linear aliphatic alcohol residue having 16 to 24 carbon atoms, but it is preferably a linear aliphatic residue having 16 to 24 carbon atoms.
[0032] Specific examples of component (c) include polyoxyethylene (5) behenyl ether (beheneth-5), polyoxyethylene (10) behenyl ether (beheneth-10), polyoxyethylene (20) behenyl ether (beheneth-20), polyoxyethylene (30 mol) behenyl ether (beheneth-30), polyoxyethylene (10) stearyl ether (steareth-10), and polyoxyethylene (7) cetyl ether (ceteth-7). These may be used individually or in combination of two or more. The number in parentheses indicates the average number of moles of ethylene oxide added, represented by n in general formula (2). Of the above, polyoxyethylene (10) behenyl ether (beheneth-10) is particularly preferred as component (c) because it can improve the feel of the cosmetic product.
[0033] (c) The component may be synthesized appropriately using known methods, or a commercially available product may be used. (c) Examples of commercially available ingredients include NIKKOL BB-5 (Beheneth-5), NIKKOL BB-10 (Beheneth-10), NIKKOL BB-20 (Beheneth-20), NIKKOL BB-30 (Beheneth-30), NIKKOL HCO-20 (PEG-20 Hydrogenated Castor Oil), NIKKOL HCO-60 (PEG-60 Hydrogenated Castor Oil), NIKKOL TS-10V (Polysorbate 60) (all manufactured by Nikko Chemicals Co., Ltd.), EMALEX 610 (Steareth-10), EMALEX 107 (Ceteth-7), EMALEX GM-5 (PEG-5 Glyceryl Stearate), EMALEX GM-10 (PEG-10 Glyceryl Stearate) (all manufactured by Nippon Emulsion Co., Ltd.).
[0034] In a cosmetic composition according to one embodiment, there are no particular restrictions on the content of component (c), and it can be appropriately selected depending on the purpose, but it is preferably 0.01% to 5% by mass, more preferably 0.1% to 5% by mass, and even more preferably 0.1% to 0.5% by mass, relative to the total mass of the cosmetic composition. When the content of component (c) is 0.01% to 5% by mass, the lightness of spreadability and quick absorption are good. Stickiness can also be suppressed.
[0035] Furthermore, the ratio of the content of component (a) to the total content of components (b) and (c) [(content of component (a)) / (content of component (b) + content of component (c))] is preferably 1 to 20, more preferably 3 to 18, and even more preferably 5 to 15. When [(content of component (a)) / (content of component (b) + content of component (c)] is within the above range, the product can be easily spread and absorbed quickly, and stickiness is suppressed.
[0036] <(d)Water> In one embodiment, it is preferable that the cosmetic composition further contains water in addition to components (a), (b), and (c) from the viewpoint of the stability of the dosage form of the cosmetic composition.
[0037] There are no particular restrictions on the water content, and it can be appropriately selected depending on the purpose, but it is preferably 20% to 90% by mass, more preferably 30% to 80% by mass, and even more preferably 40% to 70% by mass, relative to the total mass of the cosmetic.
[0038] <Other ingredients> A cosmetic composition according to one embodiment may contain other components other than components (a), (b), (c), and (d). There are no particular restrictions on the other components, and they can be appropriately selected from known components used in cosmetics. Examples include oily components, higher alcohols, glycols, glycerins, sugar alcohols, sugars, powder components, pigments, dyes, polymers, ultraviolet absorbers, surfactants other than components (b) and (c), pH adjusters, antioxidants, antioxidant aids, metal ion chelating agents, various chemicals other than component (a), solvents, and other additives. These may be used individually or in combination of two or more. These additives may also be referred to as stabilizers.
[0039] The content of other components in the cosmetic composition according to one embodiment is not particularly limited, as long as it does not impair the effect of the cosmetic composition according to one embodiment, and can be appropriately selected according to the purpose.
[0040] <<Oily components>> There are no particular restrictions on the oily components, and examples include liquid oils and fats, solid oils and fats, waxes, hydrocarbon oils, higher fatty acids, synthetic ester oils, and silicone oils. These may be used individually or in combination of two or more.
[0041] Examples of liquid oils include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, peach kernel oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, elm oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, cinnamon oil, Japanese tuni oil, jojoba oil, wheat germ oil, shea butter, and triglycerin.
[0042] Examples of solid fats and oils include cocoa butter, coconut oil, horse fat, hydrogenated coconut oil, palm oil, beef tallow, sheep fat, hydrogenated beef tallow, palm kernel oil, lard, beef bone fat, Japanese wax kernel oil, hydrogenated oil, beef tallow, Japanese wax, and hydrogenated castor oil.
[0043] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, privet wax, whale wax, montan wax, rice bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, isopropyl lanolin fatty acid, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, polyoxyethylene lanolin alcohol ether, polyoxyethylene lanolin alcohol acetate, polyoxyethylene cholesterol ether, lanolin fatty acid polyethylene glycol, polyoxyethylene hydrogenated lanolin alcohol ether, and cetyl palmitate.
[0044] Examples of hydrocarbon oils include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax, and hydrogenated polyisobutene.
[0045] Examples of high-grade fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tallic acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).
[0046] Examples of synthetic ester oils include cetyl octanoate, myristyl myristate, glyceryl tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, dioctyl succinate, tripropylene glycol dieopentanoate, diisopropyl sebacate, and diethylhexyl succinate.
[0047] Examples of silicone oils include linear polysiloxanes such as dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane (phenyl trimethicone), and diphenylpolysiloxane; cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; silicone resins forming a three-dimensional network structure; silicone rubber; various modified polysiloxanes such as amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, and fluorine-modified polysiloxane; and acrylic silicones.
[0048] In one embodiment, the cosmetic composition may be emulsified by dissolving a higher alcohol in these oily components.
[0049] In a cosmetic composition according to one embodiment, there are no particular restrictions on the content of the oily component as long as it does not impair the effect of the cosmetic composition, and it can be appropriately selected according to the purpose, but 0.05% to 50% by mass is preferred.
[0050] <<High-grade alcohol>> Examples of higher alcohols include alcohols with 6 or more carbon atoms, with higher aliphatic alcohols with 16 or more carbon atoms being preferred. Specific examples of higher alcohols include linear or branched higher alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, monostearyl glycerin ether (batyl alcohol), 2-decyltetradesinol, 2-octyldodecanol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, and octyldodecanol.
[0051] <<Glycols>> Examples of glycols include propylene glycol, dipropylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, and 1,2-hexanediol.
[0052] <<Glycerin-based products>> Examples of glycerin compounds include glycerin, diglycerin, and polyglycerin.
[0053] <<Sugar alcohols>> Examples of sugar alcohols include sorbitol, mannitol, maltitol, xylitol, and erythritol.
[0054] <<Sugars>> Examples of sugars include fructose, glucose, galactose, maltose, lactose, and trehalose.
[0055] <<Powdered ingredients>> The powder component may be an inorganic powder or an organic powder.
[0056] Examples of inorganic powders include talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, rose mica, biotite, vermiculite, bentonite, hectorite, laponite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, tungstate metal salts, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, metal soaps, and boron nitride. Examples of metal soaps include zinc myristate, calcium palmitate, and aluminum stearate.
[0057] Examples of organic powders include polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, and cellulose powder.
[0058] <<Pigment>> Examples of pigments include inorganic pigments, organic pigments, pearl pigments, and metal powder pigments.
[0059] Examples of inorganic pigments include inorganic white pigments such as titanium dioxide and zinc oxide; inorganic red pigments such as iron oxide (red iron oxide) and iron titanate; inorganic brown pigments such as γ-iron oxide; inorganic yellow pigments such as yellow iron oxide and ochre; black pigments such as black iron oxide, lower titanium oxide, and carbon black; inorganic purple pigments such as mango violet and cobalt violet; inorganic green pigments such as chromium oxide, chromium hydroxide, and cobalt titanate; and inorganic blue pigments such as ultramarine and Prussian blue.
[0060] Examples of organic pigments include Red 201, Red 202, Red 204, Red 205, Red 220, Red 226, Red 228, Red 405, Orange 203, Orange 204, Yellow 205, Yellow 401, and Blue 404, as well as Red 3, Red 104, Red 106, Red 227, Red 230, Red 401, Red 505, Orange 205, Yellow 4, Yellow 5, Yellow 202, Yellow 203, Green 3, Blue 1, and their zirconium lake, barium lake, or aluminum lake.
[0061] Examples of pearl pigments include titanium dioxide-coated mica, colored titanium dioxide-coated mica, titanium dioxide-coated bismuth oxychloride, titanium dioxide-coated talc, bismuth oxychloride, and fish scale foil.
[0062] Examples of metal powder pigments include aluminum powder and copper powder.
[0063] <<Dye>> Examples of pigments include natural pigments such as chlorophyll and beta-carotene.
[0064] <<Polymer>> Examples of polymers include natural polymers such as plant-derived polymers, animal-derived polymers, and microbial-derived polymers; semi-synthetic polymers such as starch-derived polymers, cellulose-derived polymers, and alginate-derived polymers; and synthetic polymers such as vinyl-derived polymers, acrylic-derived polymers, inorganic water-soluble polymers, and polyoxyethylene-derived polymers. These polymers can act as thickeners.
[0065] Examples of plant-derived polymers include gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, gellan gum, locust bean gum, tamarind gum, carrageenan, pectin, agar, quince seed, algae colloid (quince extract), and glycyrrhizic acid.
[0066] Examples of animal-derived polymers include collagen, casein, albumin, and gelatin.
[0067] Examples of microbial polymers include xanthan gum, dextran, succinoglycans, and pullulan.
[0068] Examples of starch-based polymers include plant starches such as corn, wheat, potatoes, and rice; carboxymethyl starch; and methylhydroxypropyl starch.
[0069] Examples of cellulosic polymers include methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, dialkyldimethylammonium cellulose sulfate, hydroxypropylcellulose, sodium carboxymethylcellulose, crystalline cellulose, cellulose powder, hydrophobic modified compounds of these polymers (for example, polymers partially modified by stearoxy), and cationic modified compounds of these polymers.
[0070] Examples of alginate-based polymers include sodium alginate and propylene glycol alginate.
[0071] Examples of vinyl polymers include polyvinyl alcohol, polyvinyl acetate, polyvinyl methyl ether, polyvinylpyrrolidone, vinylpyrrolidone-vinyl acetate copolymers, carboxyvinyl polymers, and polyvinyl acetate.
[0072] Examples of acrylic polymers include sodium polyacrylate, polyethyl acrylate, polyacrylate alkanolamine, alkyl methacrylate and dimethylaminoethyl methacrylate copolymer, poly2-acrylamido-2-methylpropanesulfonic acid, and polymethacryloyloxytrimethylammonium.
[0073] Examples of inorganic water-soluble polymers include polyethyleneimine, cationic polymers, bentonite, magnesium aluminum silicate, laponite, hectorite, and anhydrous silicic acid.
[0074] Examples of polyoxyethylene polymers include polyoxyethylene polyoxypropylene copolymers such as polyethylene glycol 300 (PEG-6), polyethylene glycol 400 (PEG-8), polyethylene glycol 600 (PEG-12), polyethylene glycol 1,000 (PEG-20), polyethylene glycol 1,540 (PEG-32), polyethylene glycol 2,000 (PEG-40), polyethylene glycol 4,000 (PEG-75), polyethylene glycol 6,000 (PEG-150), polyethylene glycol 11,000 (PEG-240), and polyethylene glycol 20,000 (PEG-400). Furthermore, as polyoxyethylene polymers, high-polymer polyethylene glycols such as PEG-2M, PEG-5M, PEG-7M, PEG-9M, PEG-14M, PEG-20M, PEG-23M, PEG-45M, PEG-65M, PEG-90M, PEG-115M, PEG-160M, and PEG-180M can also be used.
[0075] In addition, other materials such as poly(dimethyldiallylammonium halide) type cationic polymers like Merquart 100 (manufactured by Merck, USA); copolymer type cationic polymers of dimethyldiallylammonium halide and acrylamide like Merquart 550 (manufactured by Merck, USA); polyethyleneimine; cationic polymers; and aluminum magnesium silicate (beegum) can also be used.
[0076] <<UV absorber>> Examples of UV absorbers include benzoic acid-based UV absorbers, anthranilic acid-based UV absorbers, salicylic acid-based UV absorbers, cinnamic acid-based UV absorbers, benzophenone-based UV absorbers, triazine-based UV absorbers, 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), dianisoilmethane, 4-methoxy-4'-t-butyldibenzoylmethane, and 5-(3,3-dimethyl-2-norbornylidene)-3-pentan-2-one. These may be used individually or in combination of two or more.
[0077] Examples of benzoic acid-based ultraviolet absorbers include para-aminobenzoic acid (hereinafter sometimes 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.
[0078] An example of anthranilic acid-based UV absorbers is homomenthyl-N-acetylanthranilate.
[0079] Examples of salicylic acid-based ultraviolet absorbers include amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, and p-isopropanolphenyl salicylate.
[0080] Examples of cinnamic acid-based UV absorbers 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-diparamethoxy cinnamate.
[0081] Examples of benzophenone-based UV absorbers include 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenylbenzophenone-2-carboxylate, 2-hydroxy-4-n-octoxybenzophenone, and 4-hydroxy-3-carboxybenzophenone.
[0082] Examples of triazine-based UV absorbers include 2-4[(2-hydroxy-3-dodecyloxypropyl)oxy]-2-hydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2-4[(2-hydroxy-3-tridecyloxypropyl)oxy]-2-hydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.
[0083] <<Surfactants other than component (b) and component (c)>> Examples of surfactants other than components (b) and (c) include anionic surfactants, cationic surfactants, nonionic surfactants other than components (b) and (c), and amphoteric surfactants.
[0084] Examples of anionic surfactants include: soap base, fatty acid soaps such as sodium laurate and sodium palmitate; higher alkyl sulfate salts such as sodium lauryl sulfate and potassium lauryl sulfate; alkyl ether sulfate salts such as polyoxyethylene (hereinafter sometimes abbreviated as "POE") triethanolamine lauryl sulfate and POE sodium lauryl sulfate; N-acyl sarcosinic acids such as sodium lauroyl sarcosinate; higher fatty acid amide sulfonic acids such as sodium N-myristoyl-N-methyl taurate and sodium coconut oil fatty acid methyl taulide; phosphate ester salts such as POE stearyl ether phosphate; and sulfuric acid esters such as monolauroyl monoethanolamide POE sodium sulfosuccinate and sodium lauryl polypropylene glycol sulfosuccinate. Examples include succinates; alkylbenzene sulfonates such as sodium linear dodecylbenzenesulfonate and triethanolamine linear dodecylbenzenesulfonate; N-acyl glutamates such as disodium N-stearoyl glutamate and monosodium N-stearoyl glutamate; higher fatty acid ester sulfates such as sodium hydrogenated coconut oil fatty acid glycerin sulfate; sulfurized oils such as belladonna oil; POE alkyl ether carboxylic acids; POE alkyl allyl ether carboxylic acid salts; higher fatty acid ester sulfonates; secondary alcohol sulfates; higher fatty acid alkylolamide sulfates; sodium lauroyl monoethanolamide succinate; sodium caseinate; N-acylmethyl taurate salts; alkyl quaternary ammonium salts; dialkyl quaternary ammonium salts, etc.
[0085] Examples of cationic surfactants include alkyltrimethylammonium salts such as stearyltrimethylammonium chloride and lauryltrimethylammonium chloride; dialkyldimethylammonium salts such as distearyldimethylammonium chloride; alkylpyridinium salts such as cetylpyridinium chloride; alkylquaternary ammonium salts; alkyldimethylbenzylammonium salts; alkylisoquinolinium salts; dialkylmolionium salts; POE alkylamines; alkylamine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; and benzalkonium chloride.
[0086] The nonionic surfactant other than component (b) and component (c) may be a lipophilic nonionic surfactant or a hydrophilic nonionic surfactant.
[0087] Examples of lipophilic nonionic surfactants include sorbitan fatty acid esters such as sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, sorbitan penta-2-ethylhexylate diglycerol sorbitan, and sorbitan tetra-2-ethylhexylate diglycerol sorbitan; glycerin polyglycerin fatty acids such as monocottonseed oil fatty acid glycerin, monoerucate glycerin, sesquioleate glycerin, monostearate glycerin, α,α'-oleate pyroglutamate glycerin, and monostearate glycerin malic acid; propylene glycol fatty acid esters such as propylene glycol monostearate; hydrogenated castor oil derivatives; and glycerin alkyl ethers.
[0088] Examples of hydrophilic nonionic surfactants include POE sorbitan fatty acid esters such as POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan monooleate, and POE sorbitan tetraoleate; and POE sorbitan monolaurate, POE sorbitan monooleate, POE sorbitan pentaoleate, and POE sorbitan monostearate. POE fatty acid esters; POE glycerin fatty acid esters such as POE monooleates including POE glycerin monostearate, POE glycerin monoisostearate, POE glycerin triisostearate; POE fatty acid esters such as POE distearate, POE monodioleate, ethylene glycol distearate; POE alkyl ethers such as POE lauryl ether, POE oleyl ether, POE stearyl ether, POE behenyl ether, POE 2-octyldodecyl ether, POE cholestanol ether; Pluronic-type compounds such as Luronic (registered trademark); POE-POP alkyl ethers such as POE-polyoxypropylene (hereinafter sometimes abbreviated as "POP") cetyl ether, POE-POP 2-decyltetradecyl ether, POE-POP monobutyl ether, POE-POP hydrogenated lanolin, POE-POP glycerin ether; Tetra-POE-tetraPOP ethylenediamine condensates such as Tetronic; POE castor oil, POE hydrogenated castor oil, POE hydrogenated castor oil monoisostearate, POE hydrogenated castor oil triisostearate, Examples include POE hydrogenated castor oil derivatives such as POE hydrogenated castor oil monopyloglutamic acid monoisostearate diester and POE hydrogenated castor oil maleic acid; POE beeswax and lanolin derivatives such as POE sorbitan beeswax; alkanolamides such as coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, and fatty acid isopropanolamide; POE propylene glycol fatty acid esters; POE alkylamines; POE fatty acid amides; sucrose fatty acid esters; alkylethoxydimethylamine oxide; and trioleyl phosphate.
[0089] Examples of amphoteric surfactants include imidazoline-based amphoteric surfactants such as 2-undecyl-N,N,N-(hydroxyethyl carboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy 2 sodium salt; betaine-based surfactants such as 2-heptadecyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkyl betaine, amide betaine, sulfobetaine, etc.
[0090] <<pH adjuster>> Examples of pH adjusters include, for example, potassium hydroxide, sodium hydroxide, triethanolamine, sodium carbonate, lactic acid, sodium lactate, citric acid, sodium citrate, glycolic acid, succinic acid, sodium succinate, tartaric acid, malic acid, sodium hydrogen carbonate, ammonium hydrogen carbonate, etc.
[0091] <<Antioxidant>> Examples of antioxidants include, for example, tocopherols such as tocopherol acetate, dibutylhydroxytoluene (BHT), butylhydroxyanisole, gallic acid esters, etc.
[0092] <<Antioxidant aid>> Examples of antioxidant aids include, for example, phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, ethylenediaminetetraacetic acid, sodium pyrosulfite, etc.
[0093] <<Metal ion sequestering agent>> Examples of metal ion chelating agents include 1-hydroxyethane-1,1-diphosphonic acid, tetrasodium 1-hydroxyethane-1,1-diphosphonic acid, disodium edetate, trisodium edetate, tetrasodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetate, and trisodium ethylenediaminehydroxyethyl triacetate.
[0094] <<(a) Drugs other than the active ingredient>> (a) Examples of drugs other than the main component include vitamins other than vitamin B3, preservatives, anti-inflammatory agents, whitening agents, chelating agents, various extracts, activators, blood circulation promoters, anti-seborrheic agents, anti-inflammatory agents, aromatic alcohols, moisturizers, cooling agents, amino acids, disinfectants, phospholipids, lecithin, lysolecithin, ceramides, etc.
[0095] -Vitamins- Examples of vitamins include vitamin A, vitamin B1, vitamin B2, vitamin C, vitamin E, or their derivatives, pantothenic acid or its derivatives, biotin, and the like.
[0096] - Preservatives - Examples of preservatives include benzoic acid, salicylic acid, parahydroxybenzoic acid esters (methylparaben, ethylparaben, butylparaben, etc.), sorbic acid, parachlormethacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, photosensitizer, and phenoxyethanol.
[0097] -Anti-inflammatory agent- Examples of anti-inflammatory agents include glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, and allantoin.
[0098] -Whitening agent- Examples of whitening agents include Saxifraga stolonifera extract, arbutin, 4-methoxysalicylic acid, tranexamic acid, ethyl vitamin C, and magnesium ascorbate phosphate.
[0099] -Chelating agent- Examples of chelating agents include citramalic acid, agalic acid, glyceric acid, shikimic acid, hinokitiol, gallic acid, tannic acid, caffeic acid, ethylenediamine-N,N,N',N'-tetraacetic acid trisodium dihydrate (EDTA-2Na), ethylene glycol diaminetetraacetic acid, diethylenetriaminepentaacetic acid, phytic acid, polyphosphate, metaphosphate, their analogs, their alkali metal salts, and their carboxylic acid esters.
[0100] -Extract- Examples of various extracts include those from Phellodendron amurense, Coptis japonica, Lithospermum erythrorhizon, Paeonia lactiflora, Swertia japonica, Birch, Sage, Loquat, Carrot, Aloe vera, Malva sylvestris, Iris, Grape, Coix lacryma-jobi, Luffa gourd, Lily, Saffron, Cnidium officinale, Zingiber officinale, St. John's wort, Ononis, Garlic, Chili pepper, Citrus unshiu peel, Angelica acutiloba, and seaweed.
[0101] -Activator- Examples of activators include royal jelly, photosensitizers, and cholesterol derivatives.
[0102] -Blood circulation promoter- Examples of blood circulation promoters include nonylic acid valenylamide, benzyl nicotinate, β-butoxyethyl nicotinate, capsaicin, gingerol, cantharis tincture, ichthammol, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, trazoline, acetylcholine, verapamil, cepharanthine, and γ-oryzanol.
[0103] -Anti-seborrheic agent- Examples of anti-seborrheic agents include sulfur and thianthol.
[0104] -Anti-inflammatory drugs- Examples of anti-inflammatory agents include tranexamic acid, thiotaurine, and hypotaurine.
[0105] -Aromatic alcohols- Examples of aromatic alcohols include benzyl alcohol and benzyloxyethanol.
[0106] -Moisturizer- Examples of humectants include polyethylene glycol, sodium chondroitin sulfate, sodium hyaluronate, sodium lactate, glucosamine, cyclodextrin, polyethylene glycol / polypropylene glycol (PPG)-17 / 4 dimethyl ether, etc. Furthermore, the above glycols, glycerins, sugar alcohols, and sugars can also be used as humectants.
[0107] -Cooling agent- Examples of cooling agents include L-menthol and camphor.
[0108] <<Solvent>> As the solvent, aqueous solvents are preferred, such as water and lower alcohols. Examples of lower alcohols include alcohols with 5 or fewer carbon atoms. Specific examples of lower alcohols include methanol, ethanol, propyl alcohol, isopropyl alcohol, 2-amino-2-methyl-1-propanol, and 2-amino-2-methyl-1,3-propanediol.
[0109] <Dosage form> There are no particular restrictions on the dosage form of the cosmetic composition according to one embodiment, and it can be appropriately selected depending on the purpose, but it is preferably a liquid cosmetic composition, more preferably a liquid emulsified cosmetic composition, and even more preferably an oil-in-water emulsion.
[0110] There are no particular restrictions on the product form of the cosmetic composition according to one embodiment, and it can be appropriately selected according to the purpose. Examples include cosmetics for facial or body skincare or haircare such as lotions, emulsions, serums, and creams; sunscreen cosmetics; suntan cosmetics; skin cleansing cosmetics such as makeup removers; and ointments. Furthermore, the product form of the cosmetic composition according to one embodiment may be in the form of impregnating a base material such as a pack. Among these, skincare cosmetics are preferred as the product form of the cosmetic composition according to one embodiment because they have good spreadability, quick absorption, and non-stickiness.
[0111] <Manufacturing method> There are no particular limitations on the method for producing the cosmetic composition according to one embodiment, and it can be produced according to a method commonly used for cosmetics, preferably liquid cosmetics. A specific example of the method for producing the cosmetic composition according to one embodiment is to first prepare an aqueous phase by dissolving water-soluble components appropriately selected from components (a), (b), (c), and (d), and other components as needed, in water. Next, an oil phase is prepared by mixing in water-insoluble components appropriately selected from the other components. Finally, the cosmetic composition according to one embodiment is produced by emulsifying the oil phase and the aqueous phase.
[0112] There are no particular restrictions on the emulsification method, and known methods can be used. Examples include mechanical emulsification using high-pressure emulsifiers such as high-pressure homogenizers, high-shear dispersers, and colloid mills; phase inversion emulsification; coagulation; liquid crystal emulsification: D-phase emulsification; and membrane emulsification (liquid film emulsification). These methods can be used individually or in combination. [Examples]
[0113] The embodiments of the present invention will be described in more detail below based on the examples, but the embodiments of the present invention are not limited to the examples. Unless otherwise specified, the content of each component shown in Tables 1 and 2 is expressed as "mass %" relative to the total mass of the cosmetic, and all values are converted to pure content.
[0114] [1] Example 1-1 to Example 1-4 Cosmetics Examples 1-1 to 1-4 were prepared by mixing each component according to the composition and content (mass%) shown in Table 1 below. More specifically, a water-soluble component (including component (a)) was dissolved in water to prepare an aqueous phase, while a water-insoluble component (including components (b) and (c)) was mixed to form an oil phase. The oil phase was then added to the aqueous phase and stirred to obtain the oil-in-water lotions Examples 1-1 to 1-4. As shown in Table 1, in Example 1-1, the content of niacinamide (component (a)) was set to 0% by mass, and the content of niacinamide (component (a)) was gradually increased as the example number increased.
[0115] [2] Examples 2-1 to 2-4 Samples 2-1 to 2-4 were prepared by mixing each component according to the composition and content (mass%) shown in Table 2 below. The preparation method was the same as that used in Examples 1-1 to 1-4, however, the activator components in Examples 2-1 to 2-4 differed from those in Examples 1-1 to 1-4, and none of them contained component (b).
[0116] <Rating> For each example of cosmetic product, the following criteria were evaluated: "ease of spreading," "speed of absorption," and "stickiness." For evaluation, approximately 1 mL of each cosmetic product was taken onto the finger and spread in a circular motion on one cheek. "Ease of spreading" was an evaluation of how easily the cosmetic product was spread evenly on the skin during application. "Speed of absorption" was an evaluation of how quickly the cosmetic product was absorbed into the skin during application, that is, the feeling that it penetrated and settled into the skin at an early stage. "Stickiness" was an evaluation of how little stickiness was felt when the skin or fingers touched the skin again after application.
[0117] For each user experience, three expert panelists evaluated the product based on the evaluation criteria below, and the final evaluation was determined through discussion among the three panelists. For all of Examples 1-2 to 1-4 and Examples 2-1 to 2-4, Example 1-1 (without niacinamide) was used as the control. -Evaluation Criteria- ◎: Superior to the control ○: Equivalent to the control △: Slightly inferior to the control group. △△: Inferior to the comparison
[0118] The results are shown in Tables 1 and 2.
[0119] [Table 1]
[0120] [Table 2]
[0121] As shown in Table 2, the cosmetics in Examples 2-1 to 2-4 were formulations that did not contain the combination of component (b) and component (c). Table 2 shows that in formulations that did not contain the combination of component (b) and component (c), the evaluations of "ease of spreading," "speed of absorption," and "stickiness" for the cosmetics in Examples 2-2 to 2-4 that contained niacinamide (component (a)) were all lower compared to Example 2-1, which did not contain niacinamide (component (a)). In particular, for "speed of absorption" and "stickiness," there was a tendency for the evaluation to be lower as the niacinamide content increased.
[0122] On the other hand, as shown in Table 1, the cosmetics in Examples 1-1 to 1-4 were formulations that included a combination of component (b) and component (c). From Table 1, it was found that in formulations including a combination of component (b) and component (c), even when niacinamide (component (a)) was added (Examples 1-1 to 1-4), the evaluations of "ease of spreading," "speed of absorption," and "stickiness" did not decrease compared to the cosmetic without niacinamide (component (a)) (Example 1-1). In particular, it was found that the evaluation of "speed of absorption" was higher when the niacinamide content was higher.
[0123] Examples of embodiments of the present invention include the following: <1> (a) Niacin or its derivatives, (b) At least one selected from the group consisting of polyoxyethylene dialkyl esters and polyoxyethylene dialkyl ethers represented by the following general formula (1):
[0124] [ka] (However, in the above general formula (1), R A and R B Each of these independently represents a linear aliphatic acid residue or linear aliphatic alcohol residue with 16 to 24 carbon atoms, and n is an integer between 4 and 15. (c) At least one selected from the group consisting of polyoxyethylene alkyl esters and polyoxyethylene alkyl ethers represented by the following general formula (2):
[0125] [ka] (However, in the above general formula (2), R C (where n represents a linear aliphatic residue, linear aliphatic acid residue, or linear aliphatic alcohol residue with 16 to 24 carbon atoms, and n is an integer between 5 and 30.) Cosmetics containing [a specific ingredient]. <2> The above, where component (a) is niacinamide. <1> Cosmetics as described above. <3> The content of component (a) is 0.1% to 10% by mass relative to the total mass of the cosmetic composition. <1> or <2> Cosmetics as described above. <4> The aforementioned component (b) is a polyoxyethylene dialkyl ester, The above, wherein the (c) component is a polyoxyethylene alkyl ether. <1> from <3> Cosmetics as described in any of the following. <5> The content of component (b) is 0.01% by mass to 5% by mass relative to the total mass of the cosmetic composition. The content of component (c) is 0.01% by mass to 5% by mass relative to the total mass of the cosmetic composition. <1> from <4> Cosmetics as described in any of the following. <6> The content of component (b) is 15% by mass to 45% by mass relative to the total content of component (b) and component (c), <1> from <5> Cosmetics as described in any of the following. <7> (d) Further containing water, wherein the water content of (d) is 20% by mass to 80% by mass, the above <1> from <6> Cosmetics as described in any of the following.
[0126] As described above, the present invention has been explained based on specific embodiments and examples. However, these embodiments and examples are merely presented as examples, and the present invention is not limited to the above embodiments and examples. The above embodiments can be implemented in various other forms, and various combinations, omissions, substitutions, additions, modifications, etc., are possible without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents.
Claims
1. (a) Niacin or its derivatives, (b) At least one selected from the group consisting of polyoxyethylene dialkyl esters and polyoxyethylene dialkyl ethers represented by the following general formula (1): 【Chemistry 1】 (However, in the above general formula (1), R A and R B Each of these independently represents a linear aliphatic acid residue or linear aliphatic alcohol residue having 16 to 24 carbon atoms, and n is an integer between 4 and 15. (c) At least one selected from the group consisting of polyoxyethylene alkyl esters and polyoxyethylene alkyl ethers represented by the following general formula (2): 【Chemistry 2】 (However, in the above general formula (2), R C (where n represents a linear aliphatic residue, linear aliphatic acid residue, or linear aliphatic alcohol residue with 16 to 24 carbon atoms, and n represents an integer from 5 to 30.) Cosmetics containing [a specific ingredient].
2. The cosmetic composition according to claim 1, wherein the component (a) is niacinamide.
3. The cosmetic composition according to claim 1 or 2, wherein the content of component (a) is 0.1% by mass to 12% by mass with respect to the total mass of the cosmetic composition.
4. The above component (b) is a polyoxyethylene dialkyl ester, The cosmetic composition according to claim 1 or 2, wherein the component (c) is a polyoxyethylene alkyl ether.
5. The content of component (b) is 0.01% by mass to 5% by mass relative to the total mass of the cosmetic composition. The cosmetic composition according to claim 1 or 2, wherein the content of component (c) is 0.01% by mass to 5% by mass with respect to the total mass of the cosmetic composition.
6. The cosmetic composition according to claim 1 or 2, wherein the content of component (b) is 15% by mass to 45% by mass relative to the total content of component (b) and component (c).
7. (d) The cosmetic composition according to claim 1 or 2, further containing water, wherein the content of (d) water is 20% by mass to 80% by mass.
Citation Information
Patent Citations
Oil-in-water emulsion cosmetics
JP2024062903A