JP2011195455A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cosmetic which contains ascorbic acid or a derivative thereof, and an ionic thickener, is excellent in stability, and can prevent the generation of wrinkles.SOLUTION: The cosmetic is characterized by comprising (A) one or more compounds selected from ascorbic acid and derivatives thereof, (B) 0.4 to 3.0 mass% of a carboxyvinyl polymer and/or an alkyl-modified carboxyvinyl polymer, and (C) the EO or PO adduct of an alkyl glycoside, a glyceryl fatty acid ester or a sorbitan fatty acid ester.

Description

The present invention relates to a cosmetic, and more specifically, in a cosmetic containing an ionic thickener, even when ascorbic acid and a derivative thereof are blended at a high concentration, the cosmetic is aggregated (hereinafter referred to as “yore”). The present invention relates to a whitening cosmetic composition that can suppress the generation of odors and is excellent in stability, such as being less susceptible to viscosity reduction and discoloration over time.

Ascorbic acid has the action of suppressing the production of melanin by inhibiting the reaction from dopaquinone, which is a metabolic intermediate in the melanin production process, to dopachrome. Moreover, it has the effect | action which changes the colored oxidation type | mold melanin produced | generated to the colorless reduction type melanin. Therefore, it is an effective compound for the treatment or improvement of skin whitening or blemishes, freckles, melanosis and melasma. Therefore, ascorbic acid and its derivatives are blended as whitening agents in conventional cosmetics so that these effects can be obtained.

Examples of such cosmetics include whitening cosmetics containing, for example, magnesium L-ascorbate phosphate and vitamin E or derivatives thereof (see, for example, Patent Document 1). According to this whitening cosmetic, it is excellent in skin permeability, remarkably improves stains, dark blacks and freckles, synergistically increases the whitening effect, and is further excellent in stability.

However, ascorbic acid and its derivatives have problems in stability, such as decomposition with time and discoloration of cosmetics.

For such problems, for example, L-ascorbic acid phosphate magnesium salt, an organic acid having a ratio of the number of carboxyalkyl groups to hydroxyl groups of 1 or a salt thereof, and skin makeup containing essential ingredients There is a fee (for example, see Patent Document 2). According to this skin cosmetic, when there is no generation or discoloration of a precipitate of L-ascorbic acid phosphate magnesium salt, it is excellent in storage stability, and there is no change in odor, or at least excellent in sensory characteristics is there.

There is also an example in which the above problem is solved by a novel ascorbic acid derivative. For example, there is a composition in which a novel ascorbic acid derivative that is sufficiently improved in both stability and fat solubility and is easily taken up into cells is blended in cosmetics (see, for example, Patent Document 3). Further, a novel 2- (3-aminopropane phosphate) -L-ascorbic acid and / or salt thereof, which is excellent in stability of the substance itself and does not induce precipitation in the aqueous phase base, is added to the total weight of the composition. There exists a whitening cosmetic composition (for example, refer patent document 4) contained in the quantity of 0.005 to 10 weight% with respect to this.

On the other hand, thickeners such as carboxyvinyl polymers are widely used in cosmetics for the purpose of enhancing dispersion stability, emulsion stability, usability, and the like. It is known that an ionic thickener such as a carboxyvinyl polymer has a reduced thickening action and a poor stability in a salt-containing system.

Since many ascorbic acids and derivatives thereof are blended in the form of a salt, when blended in a formulation thickened and stabilized by a thickener such as a carboxyvinyl polymer, the viscosity of the formulation decreases. Therefore, the blending amount of the thickener is increased to suppress the decrease in viscosity and stabilization, but if the blending amount of the thickening agent is increased, the problem that kinking occurs when the cosmetic is applied to the skin. was there.

Japanese Patent Laid-Open No. 01-283208 Japanese Patent Laid-Open No. 03-227907 JP-A-10-298174 JP-A-11-001486

The present invention has been made in view of such a situation, and its purpose is to generate kinks even when a high concentration of ascorbic acid and its derivatives is blended in cosmetics containing an ionic thickener. It is an object of the present invention to provide a cosmetic that is excellent in stability, such as being capable of suppressing the decrease in viscosity and discoloration with time.

As a result of intensive studies, the present inventor has found that ascorbic acid and its derivatives, and in cosmetics containing a specific amount of carboxyvinyl polymer and / or alkyl-modified carboxyvinyl polymer as an ionic thickener, alkyl glucoside, glycerin fatty acid It has been found that by adding an EO or PO adduct of an ester or a sorbitan fatty acid ester, it is possible to suppress the occurrence of dripping, and it is possible to obtain a cosmetic having excellent stability that is less likely to cause a decrease in viscosity or discoloration over time. Was completed.

In addition, the present inventors have found that the above-described cosmetics can be synergistically suppressed in viscosity reduction by further blending a natural water-soluble polymer, thereby completing the present invention.

That is, the present invention includes (A) one or more selected from ascorbic acid and derivatives thereof, (B) 0.4 to 3.0% by mass of carboxyvinyl polymer and / or alkyl-modified carboxyvinyl polymer, And (C) a cosmetic containing an EO or PO adduct of alkyl glucoside, glycerin fatty acid ester or sorbitan fatty acid ester. The cosmetic preferably further comprises (D) a natural water-soluble polymer, and (E) one or more selected from the group consisting of glycyrrhizic acid, glycyrrhetinic acid and derivatives thereof. It is desirable to contain.

According to the present invention, in a cosmetic containing an ionic thickener, even when ascorbic acid and its derivatives are blended at a high concentration, the occurrence of kinks can be suppressed, and the viscosity is lowered or discolored over time. Cosmetics having excellent stability such as difficulty are provided.

Hereinafter, the present invention will be described in detail.

(A) Ascorbic acid and its derivatives used in the present invention are not particularly limited as long as they are usually used in cosmetics or pharmaceuticals. For example, ascorbic acid includes L-ascorbic acid and the like. Examples of ascorbic acid derivatives include L-ascorbic acid glucoside, L-ascorbic acid-2-phosphate, L-ascorbic acid-3-phosphate, L-ascorbic acid-6-phosphate, L-ascorbic acid. -2-polyphosphate, L-ascorbic acid-2-sulfate, L-ascorbic acid-2-palmitate, L-ascorbic acid-6-palmitate, L-ascorbic acid-2-stearate, Examples include L-ascorbic acid-6-stearic acid ester, L-ascorbic acid-2,6-dibutyl ester, L-ascorbic acid-2,6-dipalmitic acid ester, and the like. Further, salts of these ascorbic acids and derivatives thereof can also be used. Examples of the salt include sodium salt, potassium salt, magnesium salt, calcium salt, barium salt, ammonium salt, monoethanolamine salt, diethanolamine salt, triethanolamine salt, monoisopropanolamine salt, triisopropanolamine salt and the like.

Of the above ascorbic acid and derivatives thereof, L-ascorbic acid glucoside is particularly preferable. L-ascorbic acid glucoside is a known compound and can be obtained by the method described in JP-A-3-139288 or JP-A-3-135992.

As the L-ascorbic acid glucoside, α-glycosyl-L-ascorbic acid is preferably excellent in stability, and 2-O-α-D-glucosyl-L-ascorbic acid is particularly preferable.

The blending amount of (A) ascorbic acid and its derivative used in the present invention is preferably 0.01 to 5% by mass, particularly preferably 0.1 to 3% by mass, based on the total amount of the cosmetic. When the blending amount is less than 0.01% by mass, a sufficient whitening effect may not be obtained. When the blending amount exceeds 5% by mass, it may be difficult to stably blend in the cosmetic.

The carboxyvinyl polymer used as the component (B) of the present invention is a water-soluble polymer having acrylic acid as a main chain and a carboxyl group containing allyl sucrose, pentaerythritol, or the like as a crosslinking agent. Specific examples include those marketed under trade names such as CARBOPOL 940, 941, 980, 981 (manufactured by BF Goodrich). The alkyl-modified carboxyvinyl polymer used as the component (B) of the present invention is a copolymer of a long-chain alkyl acrylate monomer having 10 to 30 carbon atoms and an olefinically unsaturated carboxylic acid monomer. It is a water-soluble polymer obtained by copolymerizing 1 to 50% by mass of a monomer and 50 to 99% by mass of an olefinically unsaturated carboxylic acid monomer. Depending on the case, in order to adjust the characteristics of the copolymer, a copolymer having a crosslinked structure obtained by blending and polymerizing an olefinic polyfunctional monomer may be used. Specific examples include those marketed under the trade names of PEMULEN TR-1, TR-2, CARBOPOL 1342 [both manufactured by B.F. Goodrich].

The blending amount of the (B) carboxyvinyl polymer and / or alkyl-modified carboxyvinyl polymer used in the present invention needs to be 0.4 to 3% by mass, preferably 0.6 to 1% based on the total amount of the cosmetic. 0.5% by mass. When the blending amount is less than 0.4% by mass, a sufficient thickening effect cannot be obtained and the stability is insufficient, and when it exceeds 3% by mass, the cosmetic is applied to the skin (cosmetics). Aggregation) occurs.

The EO or PO adduct of (C) alkyl glucoside, glycerin fatty acid ester or sorbitan fatty acid ester used in the present invention is not particularly limited as long as it is usually used in cosmetics. For example, polyoxyethylene methyl glucoside (EO 10 or more) and polyoxyethylene ethyl glucoside (EO 10 or more), which are EO adducts of alkyl glucoside, polyoxypropylene methyl glucoside (PO 10 or more), PO adduct of alkyl glucoside, glycerin fatty acid ester EO adducts of polyoxyethylene glucoside and polyoxyethylene glyceryl isostearate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monooleate and polyoxyethylene tristearate which are EO adducts of sorbitan fatty acid esters Examples include sorbitan. Among these, polyoxyethylene methyl glucoside (EO10 or more) is particularly excellent in the effect of suppressing the occurrence of twist.

The EO or PO adduct of (C) alkyl glucoside, glycerin fatty acid ester or sorbitan fatty acid ester used in the present invention is preferably 0.1 to 10% by mass, particularly preferably 1 to 5% by mass based on the total amount of cosmetics. %. If the blending amount is less than 0.1% by mass, the effect of suppressing the occurrence of warping may not be sufficiently obtained, and if it exceeds 10% by mass, stickiness may occur, which is not preferable in terms of touch.

The cosmetic composition of the present invention further comprises (A) ascorbic acid and its derivatives, and (B) carboxyvinyl polymer and / or alkyl-modified as an ionic thickener by further blending (D) a natural water-soluble polymer. It is possible to synergistically suppress a decrease in viscosity that occurs in a cosmetic containing a carboxyvinyl polymer.

The natural water-soluble polymer (D) used in the present invention is not particularly limited as long as it is usually used in cosmetics. For example, acidic mucopolysaccharides such as guar gum, locust bean gum, gellan gum, quince seed, carrageenan, galactan, arabic gum, tragacanth gum, pectin, mannan, starch, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, chondroitin sulfate and the like Examples thereof include salts, gelatin, casein, albumin, and collagen. Among these, locust bean gum, gellan gum, and xanthan gum are particularly preferable, and exhibit an excellent effect in suppressing a decrease in viscosity.

The natural water-soluble polymer (D) used in the present invention can be blended in cosmetics alone or in combination of two or more. The blending amount is preferably 0.01 to 2% by mass, particularly preferably 0.05 to 1% by mass, based on the total amount of the cosmetic. If the blending amount is less than 0.01% by mass, the effect of suppressing the decrease in viscosity cannot be obtained sufficiently, and if it exceeds 2% by mass, stickiness may occur, which is not preferable in terms of touch.

The cosmetic of the present invention can synergistically improve the whitening effect by further containing one or more selected from the group consisting of (E) glycyrrhizic acid, glycyrrhetinic acid and derivatives thereof. .

(E) Glycyrrhizic acid, glycyrrhetinic acid and derivatives thereof used in the present invention are not particularly limited as long as they are usually used in cosmetics. Examples thereof include dipotassium glycyrrhizinate, monoammonium glycyrrhizinate, β-glycyrrhetinic acid, stearyl glycyrrhetinate, disodium 3-succinyloxyglycyrrhetinate, and particularly preferably dipotassium glycyrrhizinate and stearyl glycyrrhetinate.

In addition to the above-mentioned components, the cosmetics of the present invention include oils, powders (pigments, dyes, resins), surfactants, thickeners, resins, preservatives, fragrances, and UV absorbers that are commonly used in cosmetics. Agent (including organic and inorganic, which may be UV-A or B), solvent, natural plant extract component, seaweed extract component, herbal medicine component, moisturizer, salt, antioxidant Components such as an agent, a neutralizing agent, a pH adjusting agent, and an insect repellent can be appropriately blended.

Examples of the oil include volatile and non-volatile oils usually used in cosmetics, solvents, resins, and the like, and may be liquid, paste, or solid at room temperature. Examples of oils include higher alcohols such as cetyl alcohol, isostearyl alcohol, lauryl alcohol, hexadecyl alcohol, octyldodecanol, fatty acids such as isostearic acid, undecylenic acid, oleic acid, isononyl isononanoate, isotridecyl isononanoate, myristine Myristyl acid, hexyl laurate, decyl oleate, isopropyl myristate, hexyl decyl dimethyloctanoate, glyceryl monostearate, glyceryl trioctanoate, glyceryl tri-2-heptylundecanoate, diethyl phthalate, ethylene glycol monostearate, oxy Esters such as octyl stearate and diisostearyl malate, hydrocarbons such as liquid paraffin, paraffin, petroleum jelly and squalane, lano Oils such as coconut, reduced lanolin, liquid lanolin, carnauba wax, candelilla wax, ceresin, ozokerite, microcrystalline wax, mink oil, cocoa butter, coconut oil, palm kernel oil, camellia oil, sesame oil, castor oil, olive oil, etc. Polyethylene wax, ethylene / α-olefin / co-oligomer, ethylene propylene polymer and the like.

Other forms of oil include, for example, dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, polyether-modified organopolysiloxane, fluoroalkyl / polyoxyalkylene co-modified organopolysiloxane, and alkyl-modified organopolysiloxane. , Terminal-modified organopolysiloxane, fluorine-modified organopolysiloxane, amodimethicone, amino-modified organopolysiloxane, silicone gel, acrylic silicone, trimethylsiloxysilicic acid, silicone RTV rubber and other silicone compounds, perfluoropolyether, fluorinated pitch, fluorocarbon And fluorine compounds such as fluoroalcohol.

Examples of powders include red No. 104, red No. 102, red No. 226, red No. 201, red No. 202, yellow No. 4, black No. 401, etc., blue No. 1 aluminum lake, yellow No. 4 aluminum lake, Yellow No. 5 aluminum lake, yellow No. 203 barium lake and other lake pigments, nylon powder, silk powder, urethane powder, Teflon (registered trademark) powder, silicone powder, polymethyl methacrylate powder, cellulose powder, silicone elastomer spherical powder, Polymers such as polyethylene powder, yellow iron oxide, bengara, black iron oxide, chromium oxide, carbon black, colored pigments such as ultramarine and bitumen, white pigments such as zinc oxide, titanium oxide and cerium oxide, talc, mica and sericite , Kaolin, extender pigments such as plate-like barium sulfate, mica tita Pearl pigments such as barium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, magnesium silicate, inorganic powders such as silica and alumina, bentonite, smectite, boron nitride, fine particle titanium oxide, fine particle zinc oxide, etc. These are also conventionally known surface treatments such as N-acylated lysine treatment, amino acid treatment, hydrophilic polymer treatment, oil treatment, silicone treatment, metal soap treatment, inorganic compound treatment, plasma treatment, mechanochemical treatment, etc. It is also possible to use the one with the mark. There are no particular restrictions on the shape of these powders (spherical, rod-like, needle-like, plate-like, indeterminate, flake-like, spindle-like, etc.). The size of the powder is preferably in the range of 5 nm to 100 μm, more preferably 10 nm to 25 μm. These powders may be processed alone or may form a mixture and be processed together. Moreover, it is also possible to process what adjusted the color of the mixture to skin color etc. Furthermore, it is possible to obtain a treated powder having an ultraviolet protection function by using an ultraviolet scattering component such as fine particle titanium oxide or fine particle zinc oxide.

As the surfactant, for example, an anionic surfactant, a cationic surfactant, a nonionic surfactant, and an amphoteric surfactant can be used. More specifically, fatty acid soap, α-acyl sulfonate, N-acyl amino acid salt, alkyl sulfonate, alkyl allyl sulfonate, alkyl naphthalene sulfonate, alkyl sulfate, alkyl ether sulfate, alkyl amide sulfate, Anionic surfactants such as alkyl phosphates, alkylamide phosphates, alkyloyl alkyl taurates, sulfosuccinates, perfluoroalkyl phosphates, alkyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, stearyl trimethyl ammonium bromide , Cationic surfactants such as cetostearyltrimethylammonium chloride, distearyldimethylammonium chloride, stearyldimethylbenzylammonium chloride, behenyltrimethylammonium bromide, Nonionic surfactants such as acid alkanolamide, POE sorbitan fatty acid ester, POE glycerin fatty acid ester, POE fatty acid ester, polyether-modified silicone, carboxybetaine type, amide betaine type, sulfobetaine type, hydroxysulfobetaine type, amide sulfone Examples thereof include amphoteric surfactants such as betaine type, phosphobetaine type, aminocarboxylate type, imidazoline derivative type, and amidoamine type. Natural surfactants such as saponins and sugar surfactants can also be used.

Examples of adhesives and resins include sodium polyacrylate, cellulose ether, calcium alginate, ethylene / acrylic acid copolymer, vinyl pyrrolidone polymer, vinyl alcohol / vinyl pyrrolidone copolymer, nitrogen-substituted acrylamide polymer, cationization Cationic polymers such as gar gum, dimethylacrylammonium polymers, POE / POP copolymers, polyvinyl alcohol, deoxyribonucleic acid and its salts, curdlan, polyethyleneimine, highly polymerized polyethylene glycol, cationized silicone polymer, synthetic latex, etc. Can be mentioned.

Examples of the preservative include benzoic acid, sodium benzoate, undecylenic acid, salicylic acid, sorbic acid or a salt thereof, dehydroacetic acid or a salt thereof, methyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, isopropyl paraoxybenzoate, Organic acids such as butyl paraoxybenzoate, isobutyl paraoxybenzoate, benzyl paraoxybenzoate and their derivatives, isopropylmethylphenol, chlorhexidine gluconate, cresol, thymol, parachlorophenol, phenylethyl alcohol, phenylphenol, sodium phenylphenol, phenoxyethanol , Phenols such as phenoxydiglycol, phenol, benzyl alcohol, stearyltrimethylammonium chloride, cetyl chloride Quaternary ammonium salts such as limethylammonium, cetylpyridinium chloride, benzalkonium chloride, benzethonium chloride, methylbenzethonium chloride, lauryltrimethylammonium chloride, alkylisoquinolium bromide, domifenone bromide, tea extract, hinokitiol, apple extract, etc. And chloramine T, chlorhexidine, zinc pyrithione and the like.

Examples of organic ultraviolet absorbers include 2-methoxyhexyl paramethoxycinnamate, 2-ethylhexyl paradimethylaminobenzoate, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfate, 2,2′-dihydroxy-4-methoxybenzophenone, p-methoxyhydrocinnamic acid diethanolamine salt, paraaminobenzoic acid (hereinafter abbreviated as PABA), homomenthyl salicylate, methyl-O-aminobenzoate, 2-ethylhexyl-2-cyano -3,3-diphenyl acrylate, octyldimethyl PABA, octyl salicylate, 2-phenyl-benzimidazole-5-sulfuric acid, triethanolamine salicylate, 3- (4-methylbenzylidene) camphor, 2,4-dihydroxy Nzophenine, 2,2 ′, 4,4′-tetrahydroxybenzophenone, 2,2′-dihydroxy-4,4′-dimethoxybenzophenone, 2-hydroxy-4-N-octoxybenzophenone, 4-isopropyldibenzoylmethane, Examples include butylmethoxydibenzoylmethane, 4- (3,4-dimethoxyphenylmethylene) -2,5-dioxo-1-imidazolidinepropionate 2-ethylhexyl, and the like.

Examples of the solvent include purified water, cyclic silicone, ethanol, light liquid isoparaffin, lower alcohol, ethers, LPG, fluorocarbon, N-methylpyrrolidone, fluoroalcohol, volatile linear silicone, and next-generation fluorocarbon. .

Examples of natural plant extract ingredients, seaweed extract ingredients, and herbal medicine ingredients are Ashitaba extract, Avocado extract, Achacha extract, Altea extract, Arnica extract, Aloe extract, Apricot extract, Apricot extract, Ginkgo biloba extract, fennel extract, Turmeric Extract, Oolong tea extract, Ages extract, Echinacea leaf extract, Ogon extract, Oat extract, Auren extract, Barley extract, Hypericum extract, Oyster extract, Dutch mustard extract, Orange extract, Seawater dried product, Seaweed extract, Hydrolyzed elastin, Hydrolysis Wheat powder, hydrolyzed silk, chamomile extract, carrot extract, cormorant extract, calcade extract, oyster extract, kiwi extract, kina extract, cucumber extract, guanosine, gardenia extract, bear SA extract, Clara extract, walnut extract, grapefruit extract, clematis extract, chlorella extract, mulberry extract, gentian extract, black tea extract, yeast extract, burdock extract, rice bran extract, rice germ oil, comfrey extract, collagen, bilberry extract, saicin extract , Psycho extract, Saitai extract, Salvia extract, Soybean extract, Sasa extract, Hawthorn extract, Salamander extract, Shiitake extract, Giant extract, Shikon extract, Perilla extract, Linden extract, Shimotake extract, Japanese peony extract, Ginger root extract, Birch extract, Japanese cedar Extract, Kizuta Extract, Hawthorn Extract, Elderberry Extract, Yarrow Extract, Yakutaku Extract, Sage Extract, Z Blue mushroom extract, cucumber extract, assembly extract, soybean extract, thymus extract, thyme extract, tea extract, clove extract, chigaya extract, chimpi extract, Japanese cypress extract, eucalyptus extract, shinnin extract, spruce extract, dokudami extract, tomato extract, natto extract, carrot extract , Garlic extract, Novara extract, Hibiscus extract, Bacmond extract, Lotus extract, Parsley extract, Honey, Hamamelis extract, Parietalia extract, Toad extract, Bisabolol, Loquat extract, Fukitane poppo extract, Fukinoto extract, Bucurio extract, Butcher bloom extract, Grape extract , Propolis, loofah extract, safflower extract, peppermint extract, bodaiju extract, button extract, hop extract, matsuki , Maronnier extract, Citrus extract, Mukuroji extract, Melissa extract, Peach extract, Cornflower extract, Eucalyptus extract, Yukinoshita extract, Yuzu extract, Yakuinin extract, Artemisia extract, Lavender extract, Apple extract, Lettuce extract, Lemon extract, Forsythia extract, Rose extract , Rosemary extract, roman chamomile extract, royal jelly extract and the like.

The cosmetics of the present invention can be produced by ordinary methods, such as lotions, emulsions, creams, essences, gels, packs and other basic cosmetics, foundations, lipsticks and other makeup cosmetics, shampoos, rinses, hairs. It can be applied as a treatment, hair cream, hair tonic, hair liquid, set gel, hair mousse, set lotion, hair spray, hair cosmetics such as hair restorer, and bathing agent.

In particular, according to the present invention, even in a dosage form containing a large amount of carboxyvinyl polymer and / or alkyl-modified carboxyvinyl polymer, it is possible to suppress the occurrence of kinks when applied to the skin. The cosmetics can be easily applied to a dosage form such as gel or cream, which has conventionally been difficult to blend in a large amount of ascorbic acid and its derivatives.

EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated still in detail, this invention is not limited to this. In addition, all compounding quantities are the mass%.

In Examples and Comparative Examples, 2-O-α-D-glucosyl-L-ascorbic acid was used as the L-ascorbic acid glucoside.

Examples 1-6, Comparative Examples 1-5
Gel-like cosmetics having the compositions shown in Table 1 were prepared according to conventional methods, and the following tests were conducted. The results are also shown in Table 1.

(Aggregate generation status evaluation test)
0.5 g of each sample was taken on the skin, and the occurrence of kinks (aggregates) when applied to the skin with a coating time of 1 minute was observed. The evaluation criteria are shown below.

Evaluation criteria XX: There is a large amount of aggregates X: There are aggregates ○: Almost no aggregates ◎: No aggregates

(Viscosity reduction inhibition evaluation test)
For each sample 100 g, the viscosity was measured with a B-1 viscometer, whether there was a decrease in viscosity immediately after preparation, and after 60 weeks at 60 ° C., was confirmed whether separation or oil floating occurred in the cosmetic. . The decrease in viscosity has a significant effect on the stability of separation and oil floatation.As a criterion for evaluation, the viscosity is remarkably reduced, and those with many separations and oil floatation are bad. It was evaluated that some were slightly bad, some were found to have a slight decrease in viscosity but no separation or oil was found to be good, and one that was not reduced in viscosity and no separation or oil was found to be very good.

Evaluation criteria ××: Poor ×: Slightly bad ○: Good ◎: Very good

As is apparent from Table 1, the cosmetic of the present invention can suppress the occurrence of kinks, is less likely to cause a decrease in viscosity, and has excellent stability.

(Example 7 Latex)
An emulsion having the composition shown below was prepared according to a conventional method. When the above test was performed, both the agglomerate generation state evaluation test and the viscosity decrease suppression evaluation test showed excellent results (（).

Ingredient name Compounding amount (mass%)
L-ascorbic acid-2-phosphate magnesium 3.0
Stearyl glycyrrhetinate 0.2
Stearic acid 1.0
Stearic acid glycerin ester 2.0
Cetanol 1.0
Cholesterol 0.5
Liquid paraffin 3.0
Methylpolysiloxane 3.0
Squalane 3.0
Butylparaben 0.05
Hydrogenated soybean lecithin 0.1
N-stearoyl-L-glutamate sodium 1.0
Sodium hyaluronate 0.1
Carboxyvinyl polymer 0.6
Polyoxyethylene ethyl glucoside (20E.O.) 3.0
Potassium hydroxide proper amount Dipotassium edetate 0.02
Fragrance 0.1
Purified water balance ――――――――――――――――――――――――――――――
Total 100.0

(Example 8 lotion)
A lotion having the composition shown below was prepared according to a conventional method. When the above test was performed, both the agglomerate generation state evaluation test and the viscosity decrease suppression evaluation test showed excellent results (（).

Ingredient name Compounding amount (mass%)
Ethanol 10.0
Polyoxyethylene hydrogenated castor oil (60 EO) 1.0
Polyoxyethylene sorbitan monolaurate (20E.O.) 1.0
Carrageenan 0.1
L-ascorbic acid glucoside 3.0
Sodium hydroxide Appropriate amount Potassium dihydrogen phosphate 0.01
Alkyl-modified carboxyvinyl polymer 0.4
Methylparaben 0.1
Edetate tetrasodium 0.01
Fragrance 0.05
Purified water balance ――――――――――――――――――――――――――――――――――
Total 100.0

(Example 9 cream)
A cream having the composition shown below was prepared according to a conventional method. When the above test was performed, all of the aggregate generation state evaluation test (and the viscosity decrease suppression evaluation test (◎)) showed excellent results.

Ingredient name Compounding amount (mass%)
Stearic acid 2.0
Stearic acid glycerin ester 2.0
Cetanol 3.0
Cholesterol 0.5
Vaseline 2.0
Squalane 5.0
Liquid paraffin 5.0
Octyldodecyl myristate 5.0
Methylcyclopolysiloxane 5.0
Butylparaben 0.1
Sodium chondroitin sulfate 0.2
L-ascorbic acid glucoside 2.0
L-ascorbic acid-2-phosphate sodium salt 1.0
Carboxyvinyl polymer 0.3
Alkyl-modified carboxyvinyl polymer 0.4
Maltitol 5.0
Polyoxyethylene glyceryl isostearate (20 EO) 2.0
Diisopropanolamine Appropriate amount Dipotassium edetate 0.001
Fragrance 0.15
Purified water balance ――――――――――――――――――――――――――――――――――――
Total 100.0

(Example 10 serum)
A serum having the composition shown below was prepared according to a conventional method. When the above test was performed, both the agglomerate generation state evaluation test and the viscosity decrease suppression evaluation test showed excellent results (（).

Ingredient name Compounding amount (mass%)
L-ascorbic acid glucoside 0.5
L-ascorbic acid-2-sulfate disodium 0.1
Polyoxyethylene methyl glucoside (20E.O.) 1.0
Ethanol 8.0
Maltitol 10.0
Polyethylene glycol 4000 2.0
Gellan gum 0.1
Carboxyvinyl polymer 0.6
Potassium hydroxide proper amount Dipotassium edetate 0.02
Fragrance 0.05
Purified water balance ――――――――――――――――――――――――――――――
Total 100.0

Thus, in the cosmetic containing ascorbic acid and its derivatives, and an ionic thickener, the present invention was able to suppress the occurrence of twisting and was excellent in stability.

Claims (3)

(A) One or more selected from ascorbic acid and derivatives thereof, (B) 0.4 to 3.0% by mass of carboxyvinyl polymer and / or alkyl-modified carboxyvinyl polymer, and (C) alkyl glucoside A cosmetic comprising EO or PO adduct of glycerin fatty acid ester or sorbitan fatty acid ester. The cosmetic according to claim 1, further comprising (D) a natural water-soluble polymer. The cosmetic according to claim 1 or 2, further comprising (E) one or more selected from the group consisting of glycyrrhizic acid, glycyrrhetinic acid and derivatives thereof.