WO2019230578A1 - Warm sensation-imparting cosmetic preparation - Google Patents

Abstract

The purpose of the present invention is to provide a water-in-oil warm sensation-imparting cosmetic preparation which exhibits excellent warm sensation-imparting effect, while having good feeling of use and excellent storage stability. The present invention relates to a warm sensation-imparting cosmetic preparation which is characterized by containing a polyhydric alcohol, an oil-phase thickening agent, an emulsifying agent and water.

Description

Warm feeling cosmetics

The present invention relates to a warm cosmetic that gives a warm feeling when applied to the skin. More specifically, the present invention relates to a water-in-oil warm cosmetic material having excellent emulsification stability and exhibiting a cosmetic effect and having a good feeling of use.

In general, it is known that imparting an appropriate warm feeling to the skin promotes blood circulation in the skin, increases metabolism, and provides a blood color improving effect, a relaxation effect, a fatigue recovery effect, and the like. Therefore, in view of these effects, exothermic substances are blended in cosmetics. As exothermic substances to be blended in cosmetics, humectants such as polyhydric alcohols, zeolite, metal salts or metal oxides are widely used. All of these are hygroscopic and generate heat when in contact with moisture on the skin, thereby bringing warmth to the skin.

In Patent Document 1, a moderate viscosity and an excellent warm feeling-imparting effect can be obtained. Therefore, a warm cosmetic composition obtained by emulsifying a polyhydric alcohol with a specific nonionic surfactant to form an oil in a polyhydric alcohol. Fees have been proposed. Further, Patent Document 2 proposes that a highly exothermic zeolite is dispersed in a polyhydric alcohol solvent to enhance the warmth imparting effect.
As described above, various bases have been proposed as warming cosmetics. However, the cosmetics of Patent Document 1 are oil-in-water bases, and the polyhydric alcohol directly touches the skin. high. For this reason, it is a rinse-off type cleaning material that is applied to the skin and washed off after a lapse of a certain time. Moreover, although the cosmetic of patent document 2 is a leave-on type, since it is non-aqueous, it is difficult to mix | blend stably the aqueous solution containing the salt-type chemical | medical agent which has a cosmetic effect.

Therefore, there is a demand for a water-in-oil base that exhibits an excellent warmth-imparting effect, is excellent in stability and usability, and can be formulated with a cosmetic agent such as a whitening component.

JP 2014-37404 A Japanese Unexamined Patent Publication No. 2016-193841

An object of the present invention is to provide a water-in-oil warm sensation cosmetic that exhibits an excellent warm feeling-imparting effect and has a good feeling of use and is excellent in storage stability.

As a result of intensive studies by the present inventors, it has been found that the above object can be achieved by blending a polyhydric alcohol, an oil phase thickener, an emulsifier and water, and the present invention has been completed.
That is, the present invention
Polyhydric alcohol,
Oil phase thickener,
A water-in-oil warm cosmetic composition containing an emulsifier and water is characterized.

The warm cosmetic composition of the present invention exhibits an excellent warm feeling imparting effect and is also excellent in emulsion stability. In addition, since the warm cosmetic of the present invention is a water-in-oil warm cosmetic that prevents the polyhydric alcohol from directly touching the skin, the moisturizer (polyhydric alcohol) is highly blended. However, stickiness is suppressed as compared with conventional oil-in-water type or polyhydric alcohol-in-oil type warm-sensitive cosmetics. Therefore, the warm cosmetic composition of the present invention can be used as a leave-on type warm cosmetic base. Further, since water can be blended, a salt-type drug having a cosmetic effect such as a whitening component can be blended.

The warm cosmetic composition of the present invention is characterized by containing polyhydric alcohol, an oil phase thickener, an emulsifier and water as essential components. Hereinafter, the present invention will be described in detail.

<Polyhydric alcohol>
The polyhydric alcohol used in the warming cosmetic composition of the present invention refers to one that imparts warmth when applied to the skin. Specific examples include, but are not limited to, glycerin, diglycerin, polyglycerin, 1,3-butylene glycol, ethylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol (eg PEG-8), polypropylene glycol, polyethylene glycol. -Polypropylene glycol, methyl glutes-10, trimethylolethane, trimethylolpropane, erythritol, pentaerythritol, sorbitan, glucose, sorbitol, maltitol, sucrose, raffinose, hexylene glycol, 1,2-pentanediol, trehalose, etc. Can do.
Among these, it is preferable to use glycerin, dipropylene glycol, polyethylene glycol, 1,3-butylene glycol, methyl glutes-10 and the like by appropriately blending them.

In addition, the blending of polyhydric alcohol produces a warm feeling effect that leads to bright and bloody skin, and at the same time prevents makeup from breaking down due to its high moisturizing effect.

The blending amount of the polyhydric alcohol in the cosmetic of the present invention is 20% by mass or more, preferably 20 to 80% by mass, more preferably 30 to 70% by mass with respect to the total amount of the cosmetic. When the blending amount of the polyhydric alcohol is less than 20% by mass, the warm feeling during use cannot be obtained sufficiently.

<Oil phase thickener>
The oil phase thickener used in the warm cosmetic composition of the present invention refers to one that can impart viscosity to the oil phase. Examples include emulsifiable or non-emulsifiable cross-linked siloxane elastomers, dextrin fatty acid esters, hydrophobized modified polysaccharides, fatty acids, waxes and the like. Among these, in the present invention, it is preferable to use a non-emulsifiable cross-linked siloxane elastomer from the viewpoint of suppressing stickiness.

The non-emulsifying crosslinkable siloxane elastomer is not particularly limited, but is methylpolysiloxane crosspolymer, methylphenylpolysiloxane crosspolymer, vinyl dimethicone / lauryl dimethicone crosspolymer, lauryl polydimethylsiloxyethyl dimethicone / bis-vinyl. Examples include dimethicone cross polymer, alkyl (C30-45) cetearyl dimethicone cross polymer, cetearyl dimethicone cross polymer, and the like. As these non-emulsifiable cross-linkable siloxane elastomers, those commercially available in the form of swollen matter swollen in various oils such as silicone oil, mineral oil, triethylhexanoin, squalane and the like can be used. Specific examples include the following.

Examples of the methylpolysiloxane crosspolymer include 9040 silicone elastomer blend, 9041 silicone elastomer blend, 9045 silicone elastomer blend, EL-8040ID silicone organic blend (above, manufactured by Toray Dow Corning), KSG-15, Dimethicone / vinyl dimethicone crosspolymer such as KSG-16, KSG-1610 (manufactured by Shin-Etsu Chemical Co., Ltd.), vinyl dimethicone / methicone silsesquioxane crosspolymer such as KSP-100 (manufactured by Shin-Etsu Chemical Co., Ltd.), Tospearl 150KA And polymethylsilsesquioxane such as Momentive Performance Materials.

Examples of the methylphenylpolysiloxane crosspolymer include dimethicone / phenyldimethicone crosspolymer such as KSG-18A (dimethicone / phenylvinyldimethicone crosspolymer, manufactured by Shin-Etsu Chemical Co., Ltd.).

Examples of the vinyl dimethicone / lauryl dimethicone cross polymer include KSG-41A, KSG-42A, KSG-43, KSG-44 (manufactured by Shin-Etsu Chemical Co., Ltd.) and the like.

Examples of swelled products of lauryl polydimethylsiloxyethyl dimethicone / bis-vinyl dimethicone crosspolymer include KSG-042Z and KSG-045Z (manufactured by Shin-Etsu Chemical Co., Ltd.).

Examples of the alkyl (C30-45) cetearyl dimethicone crosspolymer include VELVESIL 125, VELVESIL 034 (manufactured by Momentive Performance Materials).

Examples of the cetearyl dimethicone crosspolymer include VELVESIL DM (manufactured by Momentive Performance Materials).

The blending amount of the oil phase thickener in the cosmetic of the present invention is more than 1.25% by mass and not more than 15% by mass, preferably 1.26-12% by mass, more preferably 1%, based on the total amount of the cosmetic. 27 to 10% by mass, more preferably 1.28 to 10% by mass. When the blending amount of the oil phase thickener is 1.25% by mass or less, the emulsion stability tends to be inferior or the usability tends to be inferior. On the other hand, when the blending amount exceeds 15% by mass, a stable cosmetic is prepared. Can be difficult.

As the oil phase thickener of the present invention, one or a combination of two or more selected from the non-emulsifiable cross-linked siloxane elastomers can be used.

<Emulsifier>
The emulsifier used in the warm cosmetic composition of the present invention is relatively high in lipophilicity and can exhibit an emulsion stabilizing effect of an aqueous component and an oil component that are highly blended with a polyhydric alcohol. In the present invention, a polyether-modified silicone or an organic-modified clay mineral having specific properties is preferably used.

The polyether-modified silicone having the specific properties used as the emulsifier of the present invention has an HLB of 8.0 or less and a viscosity at 25 ° C. of 10,000 mm ² / s or more, preferably 15, 000 mm ² / s or more, and still more preferably 20,000 mm ² / s or more. When the viscosity is less than 10,000 mm ² / s, good emulsification stability cannot be obtained.
Specific examples of the polyether-modified silicone include PEG / PPG-19 / 19 dimethicone (trade name “BY11-030”, HLB = 3, viscosity 30,000 mm ² / s; manufactured by Toray Dow Corning).

The organically modified clay mineral used in the present invention is a kind of colloidal hydrous aluminum silicate having a three-layer structure, and a clay mineral represented by the following general formula (1) is converted to a quaternary ammonium salt type cationic surfactant. Those modified with can be used.
[Chemical 1]
(X, Y) _2-3 (Si, Al) ₄ O ₁₀ (OH) ₂ Z _1/3 · nH ₂ O (1)
In the above formula, X is Al, Fe (III), Mn (III) or Cr (III), Y is Mg, Fe (II), Ni, Zn or Li, and Z is K, Na or Ca. is there.

Specifically, natural or synthetic montmorillonite such as montmorillonite, saponite, hectorite (in this case, (OH) group in the formula is replaced with fluorine) (commercially available products such as beegum, kunipia, laponite) and It is obtained by treating clay minerals such as sodium silicic mica, synthetic mica known as sodium or lithium teniolite (commercially available products such as Daimonite; manufactured by Topy Industries, Ltd.) with quaternary ammonium salt type cationic surfactants. It is done.

The quaternary ammonium salt type cationic surfactant used here is represented by the following general formula (2).

In the formula, R ¹ is an alkyl group or benzyl group having 10 to 22 carbon atoms, R ² is a methyl group or an alkyl group having 10 to 22 carbon atoms, R ³ and R ⁴ are alkyl groups or hydroxyalkyl having 1 to 3 carbon atoms The group X represents a halogen atom or a methyl sulfate residue.

Examples of the quaternary ammonium salt type cationic surfactant include dodecyltrimethylammonium chloride, myristyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, aralkyltrimethylammonium chloride, behenyltrimethylammonium chloride, myristyldimethylethylammonium. Chloride, cetyldimethylethylammonium chloride, stearyldimethylethylammonium chloride, aralkyldimethylethylammonium chloride, behenyldimethylethylammonium chloride, myristyldiethylmethylammonium chloride, cetyldiethylmethylammonium chloride, stearyldiethylmethylammonium chloride, ara Rudiethylmethylammonium chloride, behenyldiethylmethylammonium chloride, benzyldimethylmyristylammonium chloride, benzyldimethylcetylammonium chloride, benzyldimethylstearylammonium chloride, benzyldimethylbehenylammonium chloride, benzylmethylethylcetylammonium chloride, benzylmethylethylstearylammonium chloride, Examples include dibehenyl dihydroxyethylammonium chloride and the corresponding bromide, and dipalmitylpropylethylammonium methyl sulfate. In carrying out the present invention, one or more of these are arbitrarily selected.

Representative examples of organically modified clay minerals include dimethyl distearammonium hectorite (disteadimonium hectorite), dimethylalkylammonium hectorite, benzyldimethylstearylammonium hectorite, distearyldimethylammonium chloride-treated aluminum magnesium silicate Etc. Of these, dimethyl disteammonium hectorite is particularly preferable. Examples of commercially available products include Benton 27 (benzyldimethylstearyl ammonium chloride-treated hectorite: manufactured by Elementis Japan) and Benton 38VCG (Distearyldimethylammonium chloride-treated hectorite: manufactured by Elementis Japan).

The blending amount of the emulsifier in the cosmetic of the present invention is 0.1 to 5% by mass, preferably 0.2 to 4% by mass, more preferably 0.4 to 3% by mass with respect to the total amount of the cosmetic. If the blending amount is less than 0.1% by mass, the viscosity is difficult to be obtained and the stability is poor. If the blending amount exceeds 5% by mass, stickiness and powderiness derived from the emulsifier are produced, which is not preferable in terms of usability.

<Water>
In the warm cosmetic composition of the present invention, water (ion-exchanged water, purified water, natural water, etc.) can be blended as an aqueous solvent. However, since the warming effect is reduced when an aqueous solvent is present, when the aqueous solvent is blended, it is 10% by mass or less, preferably 8% by mass or less, more preferably 5% by mass, based on the total amount of the warming cosmetic. % Should be kept below. Therefore, in the warming cosmetic composition of the present invention, the amount of water is 0.1 to 10% by mass, or 1 to 10%, from the viewpoint of sufficiently dissolving a drug such as a whitening drug and obtaining a sense of warmth. It is preferable that the content is 1% by mass, more preferably 0.1 to 8% by mass, alternatively 1 to 8% by mass, and even more preferably 1 to 5% by mass.

<Whitening drug>
Conventional leave-on-type warm cosmetics are non-aqueous, and it was difficult to mix water-soluble drugs. On the other hand, the warm-sensitive cosmetics of the present invention contain water, so water-soluble drugs are blended. It is characterized in that it can be

The whitening agent to be blended is not particularly limited as long as it is a whitening agent blended in ordinary cosmetics. For example, ascorbic acid (vitamin C), tranexamic acid, kojic acid, ellagic acid, arbutin, alkoxysalicylic acid , And salts or derivatives thereof. More specific examples include sodium L-ascorbate, L-ascorbic acid ester magnesium salt, L-ascorbic acid glucoside, 2-O-ethyl-L-ascorbic acid, 3-O-ethyl-L-ascorbic acid, 4 -Methoxysalicylic acid sodium salt, 4-methoxysalicylic acid potassium salt and the like.
In the present invention, 4-methoxysalicylic acid potassium salt is preferably used.

In addition, a drug other than the whitening drug can be blended. Examples of drugs include vitamin A, vitamin A palmitate, vitamin A derivatives such as vitamin A acetate, vitamin B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 and its derivatives, vitamin B12, vitamin B15 and their Vitamin B such as derivatives, vitamin E such as α-tocopherol, β-tocopherol, vitamin E acetate, vitamin D such as vitamin D, vitamin H, pantothenic acid, pantethine; γ-oryzanol, allantoin, glycyrrhizic acid (salt) ), Glycyrrhetinic acid, stearyl glycyrrhetinate, hinokitiol, bisabolol, eucalptone, thymol, inositol, saikosaponin, carrot saponin, hechisaponon, muclodisaponin, etc. , Various drugs such as pantothenyl ethyl ether, arbutin, cephalanthin, etc. And plant extracts such as lily, mugwort, peonies, aloe, gardenia and cherry leaf, and pigments such as β-carotene.
The compounding amount of the agent of the present invention is arbitrarily determined within a compounding amount range that can be dissolved in the warm cosmetic material. From the viewpoint of obtaining a sufficient drug effect in cosmetics, it is preferably 0.5 to 4% by mass, more preferably 1 to 3% by mass.

<Polyether-modified silicone>
In the present invention, the emulsion stability can be further improved by blending a polyether-modified silicone having an HLB of 8.0 or less and a viscosity at 25 ° C. of less than 10,000 mm ² / s. Of these, those having no alkyl chain in the side chain and having a polyoxyalkylene group in the side chain of the linear or branched silicone skeleton are preferred.

Specific examples of the polyether-modified silicone having a linear silicone skeleton include PEG-3 dimethicone (trade name “KF-6015”, HLB = 4.5, viscosity 150 mm ² / s; manufactured by Shin-Etsu Chemical Co., Ltd.), PEG-9 methyl ether dimethicone (trade name “KF-6016”, HLB = 4.5, viscosity 150 mm ² / s; manufactured by Shin-Etsu Chemical Co., Ltd.), PEG-10 dimethicone (trade name “KF-6017P”, HLB = 4) .5, viscosity 850 mm ² / s; manufactured by Shin-Etsu Chemical Co., Ltd.), PEG-12 dimethicone (trade name “SH3772M”, HLB = 6, viscosity 1,050 mm ² / s, trade name “SH3773M”, HLB = 8, viscosity 650mm ² / s, the trade name of "SH3775M", HLB = 5, viscosity 1,600mm ² / s; all the more, manufactured by Dow Corning Toray Co., Ltd.) PEG / PPG-20/22 butyl ether dimethicone (trade name "KF-6012", HLB = 7.0, viscosity 1,600mm ² / s; manufactured by Shin-Etsu Chemical Co., Ltd.).

Specific examples of the polyether-modified silicone having a branched silicone skeleton include PEG-9 polydimethylsiloxyethyl dimethicone (trade name “KF-6028”, HLB = 4, viscosity 900 mm ² / s; manufactured by Shin-Etsu Chemical Co., Ltd.) ), Lauryl PEG-9 polydimethylsiloxyethyl dimethicone (trade name “KF-6038”, HLB = 3, viscosity 700 mm ² / s; manufactured by Shin-Etsu Chemical Co., Ltd.), cetyl PEG / PPG-10 / 1 dimethicone (trade name “ KF-6048 ”, HLB = 3.5, viscosity 2,700 mm ² / s; manufactured by Shin-Etsu Chemical Co., Ltd.).

The blending amount of the polyether-modified silicone in the cosmetic of the present invention is 0.1 to 10% by mass or less, preferably 0.3 to 6% by mass, more preferably 1 to 5% by mass relative to the total weight of the cosmetic. is there.

<Oil content>
In order to improve the feeling of use when applied to the skin, it is preferable to add an oil to the warm cosmetic of the present invention. As the oil, any oil that can be used in ordinary cosmetics can be used without particular limitation.

For example, linseed oil, camellia oil, macadamia nut oil, corn oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, kyounin oil, cinnamon oil, jojoba oil, grape oil, sunflower oil, almond oil, rapeseed oil, Oils such as sesame oil, wheat germ oil, rice germ oil, rice bran oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, evening primrose oil, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, pentadecanoic acid, heptadecanoic acid Fatty acids such as nonadecanoic acid, isostearic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid, pentaerythritol tetraoctanoate, cetyl octanoate, hexyl laurate, isopropyl myristate, octyldodecyl myristate, octyl palmitate , Isopropyl isostearate, isopalmiti Esters such as octyl acid, isodecyl oleate, cetyl ethylhexanoate, liquid paraffin, squalane, squalene, olefin oligomer, hydrogenated polydecene, paraffin, isoparaffin, octane, decane, dodecane, isododecane, hexadecane, isohexadecane, etc. , Higher alcohols such as octyl alcohol, isostearyl alcohol, oleyl alcohol, chain silicones such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodeca Mention may be made of cyclic silicones such as methylcyclohexasiloxane or silicone oils such as caprylylmethicone.

In the cosmetic of the present invention, a plurality of the above oil components may be combined and blended. The blending amount of the oil is 10 to 50% by mass, more preferably 15 to 40% by mass, and more preferably 15 to 35% by mass with respect to the total amount of the cosmetic. If the oil content is less than 10% by mass, emulsification is difficult due to the small amount of the outer oil phase, and lightness at the time of application to the skin and good spread cannot be obtained. Then, since there is little inner water phase, a viscosity is hard to come out and stability may be impaired.

<Other ingredients>
In addition to the above-mentioned components, the warm sensation cosmetics of the present invention include other components usually used in cosmetics within a range not impairing the effects of the present invention, such as powder components, UV protection agents, various aqueous solvents, A sticking agent, a sequestering agent, a sugar, an amino acid, an organic amine, a pH adjuster, a stabilizer, a skin nutrient, an antioxidant, an antioxidant aid, a fragrance and the like can be appropriately blended as necessary.

The average emulsified particle diameter of the water droplets constituting the warm cosmetic of the present invention is preferably 10 μm or less, more preferably 5 μm or less. By reducing the average emulsified particle diameter of the water droplets, the emulsion stability is excellent.

The warm cosmetic of the present invention has a hardness of 6 or more, preferably 8 or more, more preferably 10 or more, measured at 25 ° C. using a rheometer (11.3 mmφ, 10 mm penetration). A balm may be used in combination with wax. The emulsified cosmetic of the present invention having such hardness is excellent in stability, and for example, when filled in a jar container, it retains an appropriate hardness without flowing.

The warm sensation cosmetic according to the present invention is a single layer type. The warming cosmetic composition according to the present invention has good emulsification stability even when a water-soluble drug is blended, and it has no stickiness despite having a high blending of a moisturizing agent. Have For this reason, the warm cosmetics according to the present invention can be widely applied to cosmetics, for example, milky lotion, cosmetic liquid, cream, massage cosmetics, sunscreen cosmetics, makeup base, foundation, lipstick, blusher. It can be provided in any form such as eye shadow.

The warm cosmetic composition of the present invention can be produced by a conventional method. As an example, a water phase component and an oil phase component are respectively stirred and mixed to prepare a uniform water phase portion and an oil phase portion, and the water phase portion is added to the oil phase portion and stirred and mixed.

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. About a compounding quantity, mass% is shown unless there is particular notice. Prior to the examples, the evaluation method used in the present invention will be described.

(1) Warm sensation effect An actual use test was carried out on the prepared samples by 10 professional panelists. Specifically, the prepared sample was applied to the face of each paneler, and the warm feeling was evaluated according to the following criteria.
<Evaluation criteria>
A: Eight or more professional panelists recognized that there was a warm feeling effect.
B: 5 or more and less than 8 professional panelists recognized that there was a warm feeling effect.
C: 3 or more and less than 5 professional panelists recognized that there was a warm feeling effect.
D: Less than 3 professional panelists recognized that there was a warm feeling effect.

(2) Stability Each sample was allowed to stand at 0 ° C., 25 ° C., and 50 ° C. for 1 month after preparation, returned to room temperature, visually observed, and evaluated with or without separation. Moreover, the emulsified particle diameter of the water droplet after sample preparation was measured with the microscope. The smaller the average emulsified particles, the better the emulsion stability. When the average emulsified particles exceed 10 μm, the tendency for separation to be observed by long-term storage increases.

(3) Hardness Here, “hardness” in the above was measured using a rheometer (manufactured by Fudo Kogyo Co., Ltd.) under the conditions of needle diameter: 11.3 mmφ, penetration distance: 10 mm, and measurement temperature: 25 ° C.

(4) Usability An actual use test was carried out on the prepared samples by 10 expert panelists. Specifically, the prepared samples were applied to the face of each paneler, and the non-stickiness, smoothness and lightness of the spread were comprehensively evaluated according to the following criteria.
<Evaluation criteria>
A: Eight or more professional panelists recognized that it was excellent in usability.
B: 5 or more and less than 8 professional panelists recognized that it was excellent in usability.
C: Three or more professional panelists and less than five persons recognized that it was excellent in usability.
D: Less than 3 professional panelists recognized that it was excellent in usability.

[Examples 1 to 8, Comparative Examples 1 to 7]
Cosmetics were prepared according to the formulations shown in Table 1 and Table 2 below, and each property was evaluated according to the above evaluation method. The results are also shown in Table 1 and Table 2.

^{* 1} KSG-16 (Shin-Etsu Chemical Co., Ltd.)
^{* 2} DC9041 (Toray Dow Corning)
^{* 3} Tospearl 150KA (made by Momentive Performance Materials)
^{* 4} KSG-18A (Shin-Etsu Chemical Co., Ltd.)
^{* 5} KSP-100 (manufactured by Shin-Etsu Chemical Co., Ltd.)
^{* 6} BY11-030 (manufactured by Toray Dow Corning)
^{* 7} Benton 38VCG (made by Elementis Japan)
^{* 8} KF-6017P (Shin-Etsu Chemical Co., Ltd.)
^{* 9} KF-6048 (Shin-Etsu Chemical Co., Ltd.)
^{* 10} KF-6028 (manufactured by Shin-Etsu Chemical Co., Ltd.)

As shown in the results of the table, the composition containing the humectant, the oil phase thickener and the emulsifier according to the present invention (Example 1) has a sufficient warming effect and is excellent in emulsion stability. There was no stickiness and the usability was good. Further, in the compositions of Examples 2 to 8, a whitening agent could be stably blended.

On the other hand, when the composition containing no oil phase thickener (Comparative Examples 1 to 3) and the blending amount of the oil phase thickener was small (Comparative Examples 4 and 5), the stability was significantly reduced and separated. . In addition, the composition (Comparative Example 6) containing neither the polyether-modified silicone or the organically modified clay mineral having a high viscosity was remarkably low in stability. Further, when the amount of water was large (Comparative Example 7), a sufficient warming effect could not be obtained.

Claims (8)

1. Polyhydric alcohol,
   Oil phase thickener,
   A water-in-oil warm cosmetic composition containing an emulsifier and water.
2. The cosmetic according to claim 1, wherein the water content is 0.1 to 10% by mass.
3. The cosmetic according to claim 1, wherein the emulsifier is a polyether-modified silicone having a viscosity at 25 ° C of 10,000 mm ² / s or more.
4. The cosmetic according to claim 1, wherein the emulsifier is disteardimonium hectorite.
5. The cosmetic according to claim 1, wherein the oil phase thickener is a siloxane elastomer.
6. The cosmetic according to claim 1, wherein the blending amount of the oil phase thickener is more than 1.25% by mass and not more than 15% by mass.
7. Furthermore, the cosmetics of Claim 1 containing the polyether modified silicone whose viscosity in 25 degreeC is less than 10,000 mm < ² > / s.
8. The cosmetic according to claim 1, further comprising a whitening agent.