JP2002338448A - Water-in-oil type self-tanning cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a water-in-oil type self-tanning cosmetic which colors the skin evenly, provides the skin with a color closer to a natural suntan and is stably formulated with a self-tanning agent. SOLUTION: This water-in-oil type self-tanning cosmetic is characterized by comprising (A) dihydroxyacetone and/or erythrulose, (B) a crosslinking type polyether-modified silicone, (C) 5-50 mass % of a silicone oil and (D) an inorganic salt.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a self-tanning cosmetic containing a self-tanning agent such as dihydroxyacetone, erythrulose, etc. More specifically, the present invention relates to a self-tanning cosmetic which imparts a uniform color to the skin and a color closer to natural tanning. And a water-in-oil self-tanning cosmetic containing a self-tanning agent stably.

[0002]

2. Description of the Related Art In order to give an impression of tanned skin being healthy, it has been possible to tan the skin arbitrarily by sunbathing or the like for a long time. The number of people who tan their skin even in the low light season is increasing.

On the other hand, in the cosmetics field, it is known that by applying a cosmetic containing a self-tanning agent such as dihydroxyacetone to the skin, the skin can be artificially tanned without being exposed to ultraviolet rays. Yes,
Many products have been released from various companies since ancient times.

[0004] Many of these products have been usually developed as oil-in-water emulsified preparations due to their use properties (comfort, softness, ease of use) and the stability of dihydroxyacetone. In many cases, the coloring state is greatly different from that of naturally tanned skin, such as uneven application due to non-uniform application to the skin, or determination of too yellow by the user. In addition, the stability of dihydroxyacetone over time in the preparation was sometimes insufficient, for example, the product was yellowed due to decomposition of dihydroxyacetone.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a self-tanning cosmetic which is stably blended with a self-tanning agent, which can uniformly color the skin and imparts a color closer to natural tanning. Is to do.

[0006]

Means for Solving the Problems In view of the above circumstances, the present inventors have conducted intensive studies, and as a result, have found that in cosmetics containing dihydroxyacetone and / or erythrulose, a crosslinked polyether-modified silicone, a specific amount of silicone, By blending oil, and inorganic salt, the skin is colored evenly, and also gives a color closer to natural tanning,
The present inventors have found that a water-in-oil self-tanning cosmetic containing dihydroxyacetone and / or erythrulose stably can be obtained, and have completed the present invention.

That is, the present invention comprises (A) dihydroxyacetone and / or erythrulose, (B) a crosslinked polyether-modified silicone, (C) 5 to 50% by mass of silicone oil, and (D) an inorganic salt. A water-in-oil type self-tanning cosmetic characterized by the following.

A second aspect of the present invention is the above water-in-oil self-tanning cosmetic, further comprising (E) a polyether-modified silicone and / or an alkyl polyether-modified silicone.

[0009]

Embodiments of the present invention will be described below in detail.

The (A) dihydroxyacetone and erythrulose used in the present invention are common self-tanning agents in cosmetics, and can be used alone or in combination of two or more. In particular, dihydroxyacetone is preferable because it can impart coloring closer to natural tanning.

The amount of the (A) dihydroxyacetone and / or erythrulose used in the present invention is 0.1 to 0.1% based on the total amount of the water-in-oil self-tanning cosmetic.
It is preferably 20% by mass (hereinafter abbreviated as%), particularly preferably 1 to 10%. If it is less than 0.1%, the coloring of the skin may not be sufficient, and if it is more than 20%, the stability over time of dihydroxyacetone and / or erythrulose may be insufficient.

The crosslinked polyether-modified silicone (B) used in the present invention is represented by the following general formula (I).

[0013]

Embedded image [However, in General formula (I), X shows the integer of 10-200, Y shows the number of 1.0-10.0, and Z shows the integer of 3-20. ]

The crosslinked polyether-modified silicone (B) used in the present invention can be produced by the methods described in JP-A-4-272932 and JP-A-5-140320.

The (B) cross-linked polyether-modified silicone used in the present invention is obtained by previously kneading with a silicone oil (C) under a shearing force to form a paste-like polyether-modified silicone composition. (B) a cross-linked polyether-modified silicone and (C)
Silicone oil may be blended as a cosmetic component. It is also possible to mix (B) the crosslinked polyether-modified silicone, (C) silicone oil, and other cosmetic ingredients and then knead them under shearing force.

In the above general formula (I), when Z is less than 3,
When the crosslinked polyether-modified silicone is kneaded with the silicone oil (C) under shearing force and used, the obtained paste composition has poor emulsifiability of water,
When Z exceeds 20, the swellability of (B) the crosslinked polyether-modified silicone in (C) silicone oil becomes insufficient.

When X is less than 10, the crosslinked polyether-modified silicone (B) does not swell sufficiently in the silicone oil (C), while when X exceeds 200, the resulting paste-like composition is obtained. However, the emulsifiability of water becomes poor.

On the other hand, if Y is less than 1.0, a three-dimensional structure cannot be formed, and the composition does not become a paste-like composition even if it is kneaded with (C) silicone oil. On the other hand, if Y exceeds 10.0, the crosslink density of the three-dimensional structure becomes too high, so that the silicone oil cannot be retained even when kneaded with the silicone oil (C), and a stable paste is obtained. No composition can be obtained.

The silicone oil (C) used in the present invention excludes (B) a crosslinked polyether-modified silicone and (E) a polyether-modified silicone and an alkyl polyether-modified silicone. Kneading process with polyether modified silicone under shearing force,
It is used for preparing a paste-like polyether-modified silicone composition, and is also used as an oil agent (oil phase component).

(B) The silicone oil used for preparing a paste-like polyether-modified silicone composition by kneading with a crosslinked polyether-modified silicone under shearing force has a viscosity at 25 ° C. 100mP
A low-viscosity silicone oil of a · s or less is preferably used.

Such low viscosity silicone oils include:
For example, chain silicone oils such as dimethylpolysiloxane, methylphenylpolysiloxane, diethylpolysiloxane, ethylmethylpolysiloxane, ethylphenylpolysiloxane, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodeca Examples include cyclic silicone oils such as methylcyclohexasiloxane and tetradecamethylcycloheptasiloxane. These silicone oils are 1
Species can be used alone or in combination of two or more.

When the above components (B) and (C) are kneaded under shearing force to prepare a paste-like polyether-modified silicone composition, the proportions of the components (B) and (C) are as follows: A component obtained by kneading using the component (C) in a ratio of 10 to 1000 parts by mass, preferably 20 to 500 parts by mass, based on 100 parts by mass of the component (B) is preferable. If the amount of the component (C) is less than 10 parts by mass, it is difficult to form a uniform paste.
If it exceeds 000 parts by mass, it is difficult to obtain a sufficient viscosity increase, and it is difficult to form a good paste.

The kneading treatment carried out under a shearing force can be carried out using, for example, a three-roll mill, a two-roll mill, a sand grinder, a colloid mill, a Gaulin homogenizer, etc., and particularly preferably a three-roll mill. .

The paste-like polyether-modified silicone composition, which is a kneaded product of the component (B) and the component (C) under shearing force, is commercially available, for example, as “KSG” series (manufactured by Shin-Etsu Chemical Co., Ltd.). And are commercially available. In the present invention, it is most preferable to use KSG-21 (manufactured by Shin-Etsu Chemical Co., Ltd.).

The amount of the crosslinked polyether-modified silicone (B) used in the present invention is preferably 0.1 to 10%, particularly preferably 0.1 to 10%, based on the total amount of the water-in-oil self-tanning cosmetic. 5 to 5%. If the amount is less than 0.1%, the emulsification may be insufficient. On the other hand, if the amount exceeds 10%, the elongation is poor and the usability is heavy, which is not preferable. (B) When compounding the crosslinked polyether-modified silicone as a paste-like polyether-modified silicone composition, it is preferable to select the amount of the crosslinked polyether-modified silicone in the above range so as to fall within the above range.

The silicone oil (C) used in the present invention is also used as an oil agent. For example, in addition to the above, there may be mentioned methyl hydrogen polysiloxane, highly polymerized methyl polysiloxane, alcohol-modified silicone, alkyl-modified silicone, amino-modified silicone and the like.

The compounding amount of the silicone oil (C) used in the present invention is as follows: the one used for preparing the paste-like polyether-modified silicone composition by kneading the component (B) under shearing force; The total amount of the water-in-oil self-tanning cosmetics, including those used as oil agents, is 5 to 50%, particularly preferably 10 to 30%.
It is. If it is less than 5%, a refreshing feel cannot be obtained, while if it exceeds 50%, a stable water-in-oil emulsion cannot be obtained.

The inorganic salt (D) used in the present invention is not particularly limited as long as it is usually used in cosmetics. Examples thereof include alkali metal salts such as hydrochloric acid, sulfuric acid, nitric acid, carbonic acid and phosphoric acid. , Alkaline earth metal salts, aluminum salts, zinc salts, ammonium salts and the like. Preferred inorganic salts include chlorides such as sodium chloride, potassium chloride, magnesium chloride, calcium chloride, aluminum chloride, zinc chloride and ammonium chloride, and sulfates such as sodium sulfate, potassium sulfate, magnesium sulfate, aluminum sulfate, zinc sulfate and ammonium sulfate. Nitrate such as sodium nitrate, potassium nitrate, magnesium nitrate, calcium nitrate, aluminum nitrate, zinc nitrate, ammonium nitrate, carbonate such as sodium carbonate, potassium carbonate, magnesium carbonate, calcium carbonate, phosphoric acid such as sodium phosphate and potassium phosphate Salts. Particularly preferred inorganic salts include sodium chloride, potassium chloride, magnesium chloride, calcium chloride, aluminum chloride, sodium sulfate, potassium sulfate, magnesium sulfate, and aluminum sulfate.

When the amount of the inorganic salt (D) used in the present invention is used, the amount is preferably 0.01 to 5%, based on the total amount of the water-in-oil self-tanning cosmetic.
Particularly preferably, it is 0.1 to 3%. If the amount is outside the range of 0.01 to 5%, it becomes difficult to obtain a stable water-in-oil emulsion.

The polyether-modified silicone used in the present invention is represented by the following general formula (II).

[0031]

Embedded image

[In the general formula (II), R₁Are the same but different
May represent a methyl group or a phenyl group, respectively,
R_TwoMay be the same or different.
R_Three− (OC_ThreeH₆)_h− (OC_TwoH_Four)_i-O- (CH_Two)_j
− (R_ThreeIs a hydrogen atom or an alkyl group having 1 to 12 carbon atoms
, J is a number from 1 to 5, h and i are average values,
0-35), or a phenyl group. However,
R_TwoAt least one of which is R_Three− (OC_ThreeH₆)_h− (O
C_TwoH_Four)_i-O- (CH _Two)_j-Represents a group, and the remainder is methyl.
A phenyl group or a phenyl group. f and g are average values, and f is
G represents a number of 0 to 50, and g represents a number of 0 to 50. ]

As the polyether-modified silicone used in the present invention, commercially available ones can be used.
Specific examples thereof include TSF4452 (manufactured by Toshiba Silicone Co., Ltd.) and BY22-008 (manufactured by Dow Corning Toray Silicone Co., Ltd.).

The alkylpolyether-modified silicone used in the present invention refers to a modified silicone having a polyoxyalkylene group and a hydrocarbon group having 6 to 16 carbon atoms in one molecule, for example, represented by the following general formula (III): The production method is described, for example, in JP-B-63-36620.
No., published in Japanese Unexamined Patent Publication No.

[0035]

Embedded image

[In the general formula (III), R ₄ has 1 to 1 carbon atoms.
5 represents a hydrocarbon group, R ₅ represents a hydrocarbon group having 6 to 16 carbon atoms, Q represents an alkylene group, and R ₆ represents a group-
(OC ₂ H ₄ ) _d- (OC ₃ H ₆ ) _e -OR ₇ (R ₇ represents a hydrogen atom or a lower alkyl group, d and e are d ≧ e, and — (OC ₂ H ₄ ) _{d - (OC 3 H 6)} e molecular weight of -O- 6
C is a number from 1 to 3, a and b are a <3b, and a + b + c =
The number which becomes 30-400 is shown. Where-(OC ₂ H ₄ ) _d
- (OC ₃ H ₆₎ the total weight of _e -O- does not exceed 1/3 of the alkyl polyether-modified silicone total weight. ]

In the above general formula (III) showing one example of the alkyl polyether-modified silicone used in the present invention,
Examples of the hydrocarbon group having 1 to 5 carbon atoms for R ₄ include an alkyl or alkenyl group, such as a methyl group, an ethyl group, an isopropyl group, a butyl group, a benzyl group, or a vinyl group. preferable.

In the general formula (III), examples of the hydrocarbon group having 6 to 16 carbon atoms of R ₅ include a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, Examples thereof include a straight-chain alkyl group such as a tetradecyl group and a hexadecyl group, and a branched-chain alkyl group such as an isooctyl group, a sec-octyl group and a 2-ethylhexyl group. Of these, a dodecyl group is particularly preferred.
When b> 1 of the present invention, each R ₅ may be the same group or a combination of two or more different groups.

In the above general formula (III), examples of the alkylene group for Q include a methylene group, an ethylene group, a propylene group, a trimethylene group and a butylene group. Of these, a propylene group and a trimethylene group are particularly preferred.

In the above general formula (III), R ₆ represents a group
Shows a _{(OC 3 H 6) e -O} -R 7 - (OC 2 H 4) d. Here, R ₇ is a hydrogen atom or a lower alkyl group such as a methyl group, an ethyl group, an isopropyl group, and a butyl group.
Of these, a hydrogen atom is particularly preferred. D and e are d
≧ e, and-(OC ₂ H ₄ ) _d- (OC ₃ H ₆ ) _e O-
Is a number that gives a molecular weight of 600 to 3500. Preferred examples of d and e in the present invention are d = 15 and e
= 0; d = e = 18; d = e = 25; or d = 29
And e = 7.

In the general formula (III), c is 1 to 3.
A and b are a <3b and a + b + c
= 30 to 400, a is preferably 0 to 100, particularly 0, preferably a + b + c = 30 to 70, and c is preferably 2 or less. In the present invention, finally _{- (OC 2 H 4) d} - (OC 3 H 6) the total weight of _e -O- general formula (III) in the total weight of the alkyl polyether-modified silicone represented Should not exceed 1/3.

As the alkyl polyether-modified silicone used in the present invention, commercially available ones can be used, and specific examples thereof include “DC 52” sold by Dow Corning Toray Silicone Co., Ltd.
00 "(lauryl methicone copolyol; general formula (II)
I), R ₄ 3CH ₃ , R ₅ ａC ₁₂ H ₂₅ , a = 0), “ABI (ABI) sold by Glenn
L) B9896 "(cetyl dimethicone copolyol; R ₄ ＣＨCH ₃ , R ₅ ＣC ₁₆ H ₃₃ , a =
0) and the like.

When the compounding amount of (E) the polyether-modified silicone and / or the alkyl polyether-modifying silicone used in the present invention is used, the compounding amount is set to 0.1% based on the total amount of the water-in-oil self-tanning cosmetic. 01-1
0% is preferable, and particularly preferably 0.5 to 5%.
If it is less than 0.01%, it is difficult to obtain a stable water-in-oil emulsion, while if it is more than 10%, the feeling of use tends to deteriorate, which is not preferable.

The water-in-oil self-tanning cosmetic composition of the present invention further comprises a pH adjuster and / or
Alternatively, it is preferable to add an antioxidant.

The pH adjuster is not particularly limited as long as it is generally used in cosmetics. Examples thereof include glycolic acid, malic acid, acetic acid, lactic acid, oxalic acid, tartaric acid, and the like.
Examples thereof include organic acids such as citric acid and levulinic acid and salts thereof, and citric acid and salts thereof are particularly preferable. The water-in-oil self-tanning cosmetic composition of the present invention is preferably adjusted to pH 3.0 to 4.0 in order to further improve the stability of dihydroxyacetone and / or erythrulose.

The antioxidant is not particularly limited as long as it is generally used in cosmetics. For example, vitamin C and its derivatives, vitamin E and its derivatives, B
HA, BHT, propyl gallate, erythorbic acid and salts thereof, dilauryl thiodipropionate, tolylguanide, p-hydroxyanisole, octyl gallate, tea extract, apple extract and the like, particularly ascorbic acid, ascorbyl palmitate, Ascorbyl stearate, erythorbic acid, sodium erysorbate are preferred.

The water-in-oil self-tanning cosmetic composition of the present invention comprises the above-mentioned components as essential components, and the composition contains other components such as an anion as long as the object of the present invention is achieved. Surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, thickeners, oils, powders (pigments, dyes, resins), preservatives, fragrances, humectants, bioactive ingredients Components such as salts, solvents, chelating agents, pearlizing agents, neutralizing agents, insect repellents, enzymes and the like can be appropriately compounded. Specific examples of the components are shown below, but are not limited thereto.

Examples of the anionic surfactant include α-acyl sulfonate, alkyl sulfonate, alkyl allyl sulfonate, alkyl naphthalene sulfonate, alkyl sulfate, alkyl ether sulfate, alkylamide sulfate, Polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl amide ether sulfate, alkyl phosphate, alkyl amide phosphate, alkylloylalkyl taurine salt, N-acyl amino acid salt,
Sulfosuccinate, perfluoroalkyl phosphate, and the like.

Examples of the cationic surfactant include alkyltrimethylammonium chloride, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, distearyldimethylammonium chloride, stearyldimethylbenzylammonium chloride, and behenyltrimethylammonium bromide.

Examples of the amphoteric surfactant include a glycine type, an aminopropionic acid type, a carboxybetaine type, a sulfobetaine type, a sulfonic acid type, a sulfuric acid type, and a phosphoric acid type. -Carboxymethyl-N-hydroxyethylimidazolinium betaine, coconut oil fatty acid amidopropyl betaine and the like.

Examples of the nonionic surfactant include fatty acid alkanolamide, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, and alkylamine oxide.

Examples of the tackifier include dimethyldiallylammonium chloride / acrylamide copolymer, acrylamide / acrylic acid / dimethyldiallylammonium chloride copolymer, cellulose, keratin and collagen or derivatives thereof, calcium alginate, pullulan, agar, gelatin , Tamarind seed polysaccharide, xanthan gum, carrageenan, high methoxyl pectin, low methoxyl pectin, guar gum, gum arabic, crystalline cellulose, arabinogalactan, karaya gum, tragacanth gum, alginic acid, albumin, casein, curdlan, gellan gum, dextran and the like. .

Examples of the oil agent include volatile and non-volatile oil agents, solvents and resins usually used in cosmetics, and may be liquids, pastes or solids at room temperature, but liquids excellent in handling are preferable. Examples of oils include
For example, cetyl alcohol, isostearyl alcohol,
Higher alcohols such as lauryl alcohol, hexadecyl alcohol and octyldodecanol, fatty acids such as isostearic acid, undecylenic acid and oleic acid, myristyl myristate, hexyl laurate, decyl oleate, isopropyl myristate, hexyldecyl dimethyloctanoate, mono Esters such as glyceryl stearate, diethyl phthalate, ethylene glycol monostearate, octyl oxystearate, hydrocarbons such as liquid paraffin, petrolatum, squalane, lanolin, reduced lanolin, wax such as carnauba wax, mink oil, cocoa butter, Fats and oils such as coconut oil, palm kernel oil, camellia oil, sesame oil, castor oil, olive oil and the like can be mentioned.

Examples of powders include Red 201 and Yellow 4
No. 1, Blue No. 1, Black No. 401, etc., Yellow No. 4 Al lake, Yellow No. 203 Ba lake, etc., Nylon powder, Silk powder, Silicone powder, Cellulose powder, Silicone elastomer spherical powder,
Polymers such as polyethylene powder, yellow iron oxide, red iron oxide, chromium oxide, carbon black, colored pigments such as ultramarine and navy blue, white pigments such as zinc oxide and titanium oxide, talc, mica, sericite, kaolin, etc. Pigments, pearl pigments such as titanium mica, metal salts such as barium sulfate, calcium carbonate, magnesium carbonate and magnesium silicate, inorganic powders such as silica and alumina, bentonite, smectite, boron nitride and the like. The shape of these powders (spherical,
There is no particular limitation on a rod shape, a needle shape, a plate shape, an irregular shape, a scaly shape, a spindle shape, and the like.

These powders may be subjected to conventionally known surface treatments such as fluorine compound treatment, silicone treatment, silicone resin treatment, pendant treatment, silane coupling agent treatment, and the like.
Surface treatment may be performed in advance by titanium coupling agent treatment, oil treatment, N-acylated lysine treatment, polyacrylic acid treatment, metal soap treatment, amino acid treatment, inorganic compound treatment, plasma treatment, mechanochemical treatment, etc. .

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

Examples of the physiologically active ingredient include substances which give some physiological activity to the skin when applied to the skin. For example, anti-aging agents, UV protection agents, tightening agents,
Moisturizer, blood circulation promoter, antibacterial agent, bactericide, desiccant, cooling agent, warming agent, amino acid, wound healing promoter, stimulant,
An analgesic, a cell activator, an enzyme component and the like can be mentioned.

The water-in-oil self-tanning cosmetic composition of the present invention can be produced according to a conventional method. Further, the water-in-oil self-tanning cosmetic of the present invention is not limited to general skin cosmetics, and includes quasi-drugs, designated quasi-drugs, topical drugs, and the like. The dosage form can also be arbitrarily selected depending on the purpose. That is,
It can be in the form of creams, emulsions, gels, lotions and the like.

[0059]

Next, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples. In addition, all compounding amounts are mass%.

Based on the composition shown in Table 1, a water-in-oil self-tanning cream was prepared and evaluated by the following stability test and sensory test. The evaluation results are also shown in Table 1.

Stability Test Method The change over time when each sample was stored at 45 ° C. for one month was evaluated according to the following criteria. ：: Neither viscosity reduction nor separation ○: Viscosity reduction but not separation Δ: Viscosity reduction, slightly separated ×: Viscosity reduction, separated

Sensory Test Method Twenty expert panelists evaluated the feel when each sample was applied to the face, the uniformity of coloration (no unevenness) and the color tone after 6 hours on the following five scales. The average score was determined, and 4.0 or more: 、 ３, 3.0 or more and less than 4.0, 、 ２.
0 or more and less than 3.0 were evaluated as Δ, and less than 2.0 were evaluated as ×. (Feel) 5: Very preferred 4: Preferred 3: Neither can be 2: Neither 1: Not very preferred (uniformity) 5: Uniform 4: Somewhat uniform 3: Neither can 2: Somewhat uneven 1: Uneven (color) 5: Natural 4: Somewhat natural 3: Neither can be 2: Somewhat unnatural 1: Unnatural

[0063]

[Table 1] * 1: DC 5200 [manufactured by Dow Corning Toray Silicone Co., Ltd.] * 2: KSG-21 [manufactured by Shin-Etsu Chemical Co., Ltd.] (containing 22 to 32% of crosslinked polyether-modified silicone and 68 to 78% of methylpolysiloxane)

From Table 1 above, the water-in-oil self-tanning creams of Examples 1 and 2 satisfying the constitutional requirements of the present invention are excellent in stability, uniformly color the skin, and impart a natural color. there were. On the other hand, the water-in-oil self-tanning creams of Comparative Examples 1 and 2, which do not contain (B) a crosslinked polyether-modified silicone or (D) an inorganic salt, which are constituent elements of the present invention, have uniform coloring and natural color. Inferior in the effect of imparting color, and (C) silicone oil 5
Comparative Example 3, which did not contain 50% by mass, was inferior in stability and feel.

[0065]

As described above, the present invention provides a water-in-oil self-tanning cosmetic which is stably blended with a self-tanning agent, which imparts a uniform color to the skin and imparts a color closer to natural tanning. That can be provided.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A61K 7/00 A61K 7/00 W

Claims (2)

[Claims] 1. It comprises (A) dihydroxyacetone and / or erythrulose, (B) a crosslinked polyether-modified silicone, (C) 5 to 50% by mass of silicone oil, and (D) an inorganic salt. Water-in-oil self-tanning cosmetics. 2. The water-in-oil self-tanning cosmetic according to claim 1, further comprising (E) a polyether-modified silicone and / or an alkyl polyether-modified silicone.