JP2007161614A - Skin care preparation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a skin care preparation containing an alginic acid polyhydric alcohol ester and/or its salt and giving a make-up cosmetic having improved make-up durability. <P>SOLUTION: The skin care preparation giving a make-up cosmetic having improved make-up durability contains (1) a polyhydric alcohol ester such as propylene glycol ester of alginic acid and/or its salt and (2) a dimer acid and/or dimer diol diester such as di(isostearyl/phytosteryl/cetyl/stearyl/behenyl) dimer dilinoleate. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a skin external preparation, and more particularly, to a skin external preparation suitable for a cosmetic having an effect of improving makeup retention.

  Makeup cosmetics are cosmetics used to adjust the skin color, to make spots and small wrinkles less noticeable, and to form a favorable impression such as emphasizing individuality. Therefore, the change over time of the surface condition of the makeup cosmetic material has a great influence on the impression formation. These make-up cosmetics may gradually change their state due to excessive sweat, sebum, etc., and may cause so-called makeup collapse. In addition, makeup makeup cosmetics are said to have a great influence on the basic cosmetics that serve as the base. On the other hand, the polyhydric alcohol ester of alginic acid has an excellent emulsifying power. By using this, a technique for obtaining a highly stable emulsified skin external preparation without using a surfactant is known. (For example, refer to Patent Document 1). However, this technique is a technique in which a cosmetic with high moisture retention and skin protection can be obtained without using a surfactant, and does not further improve the makeup-holding properties of makeup cosmetics. In other words, in the external preparation for skin containing a polyhydric alcohol ester of alginic acid, there is room for improving the makeup lasting of the makeup cosmetics, and development of a technique for further improving this makeup lasting has been desired.

  On the other hand, a technique for blending a diester of dimer acid or dimer diol into a cosmetic (see, for example, Patent Document 2), a technique for blending an ester of dimer linoleic acid into an oily cosmetic (for example, Patent Document 3, Patent Document) 4), and a technology for obtaining cosmetics having excellent moisture retention and stability by containing a dimer linoleic acid ester and a water-soluble polymer compound such as alginic acid (for example, patents). Reference 5) is also known.

  However, there is no known skin external preparation containing a polyhydric alcohol ester of alginic acid and a diester form of dimer acid and / or dimer diol, and the skin external preparation having such a constitution is used for makeup cosmetics. It has not been known that it has the effect of improving.

JP 2004-196728 A Japanese Patent Laid-Open No. 2004-262783 JP 2004-269396 A JP 2005-104854 A JP 2005-97123 A

  The present invention has been made under such circumstances, and an object of the present invention is to provide an external preparation for skin that improves the makeup of makeup cosmetics.

  In view of such circumstances, the present inventors have developed a skin external preparation that further improves the makeup of makeup cosmetics in a skin external preparation that uses a polyhydric alcohol ester of alginic acid and / or a salt thereof as an emulsifier. As a result of diligent research efforts, the cosmetic preparation for external use containing a polyhydric alcohol ester of alginic acid and / or its salt contains a diester of dimer acid and / or dimer diol. As a result, it was found that a cosmetic preparation with improved skin external preparation can be obtained, and the present invention was completed. That is, the present invention is as follows.

(1) A skin external preparation containing 1) a polyhydric alcohol ester of alginic acid and / or a salt thereof, and 2) a diester of dimer acid and / or dimer diol.
(2) The external preparation for skin according to (1), wherein the polyhydric alcohol ester of alginic acid is alginate propylene glycol ester.
(3) The skin according to (1) or (2), wherein the diester of dimer acid and / or dimer diol is dimer linoleic acid di (phytosteryl / isostearyl / cetyl / stearyl / behenyl) Topical agent.
(4) The external preparation for skin according to any one of (1) to (3), further comprising alginic acid and / or a salt thereof.
(5) The skin external preparation according to any one of (1) to (4), further comprising an ester of an acylated amino acid.
(6) The topical skin preparation according to any one of (1) to (5), wherein the acylated amino acid ester is dilauroyl glutamate (phytosteryl / 2-octyldodecyl).
(7) The skin external preparation according to any one of (1) to (6), which is an oil-in-water emulsifier type.
(8) The external preparation for skin according to any one of (1) to (7), which is a cosmetic.

  ADVANTAGE OF THE INVENTION According to this invention, the skin external preparation which can improve the makeup lasting of makeup cosmetics can be provided.

(1) Polyhydric alcohol ester of alginic acid which is an essential component of the external preparation for skin of the present invention The external preparation for skin of the present invention is characterized by containing a polyhydric alcohol ester of alginic acid. The polyhydric alcohol constituting the polyhydric alcohol ester of alginic acid can be used without particular limitation as long as it is used in a skin external preparation or the like, and those having 2 to 4 carbon atoms are preferable. Specifically, propylene glycol, glycerin, 1,3-butanediol, ethylene glycol and the like can be preferably exemplified. Among these, propylene glycol is particularly preferable because of the balance between hydrophilicity and hydrophobicity. Such polyhydric alcohol esters of alginic acid include those already on the market, and these can be purchased and used. For example, “Kimiloid LLV”, “Kimiloid NLS-K”, “Kimiloid LV”, “Kimiloid BF” and the like are commercially available from Kimika Co., Ltd. with different degrees of esterification and different viscosities. Can be preferred. Among these, “Chimiloid BF” is particularly preferable. As a salt used for the polyhydric alcohol ester of alginic acid and / or a salt thereof, any salt can be used as long as it is a monovalent salt, but sodium salts and potassium salts which are alkali metal salts are preferred. The preferable content of such a polyhydric alcohol ester of alginic acid is preferably 0.1 to 2% by mass of the whole external preparation for skin. 0.2-1 mass% is more preferable. If the amount is less than this, it may be difficult to obtain a sufficient emulsifying power. If the amount is too large, the hardness increases and the usability may be impaired.

(2) Diester of dimer acid and / or dimer diol, which is an essential component of the skin external preparation of the present invention The skin external preparation of the present invention contains a diester of dimer acid and / or dimer diol. It is said. The diester of dimer acid and / or dimer diol used in the external preparation for skin of the present invention is obtained by dimerizing mono- or di-unsaturated fatty acid and then hydrogenating as necessary. Diesters with various alcohols, dimer diols obtained by reducing dimer acid and diesters of various fatty acids, dimer acid and dimer diol esters, and the like. Dimer dilinoleate di (phytosteryl / Examples thereof include isostearyl / cetyl / stearyl / behenyl), dimer dilinoleate di (isostearyl / phytosteryl), dimer dilinoleate dilinoleyl, diisostearate dimer dilinoleyl and the like. These compounds were obtained from Nippon Seika Co., Ltd., dimer dilinoleate di (isostearyl phytosteryl) as “LUSPLAN PI-DA” and dimer dilinoleate dilinoleyl as “LUSPLAN DD-DA”. Linoleil is commercially available as “LUSPLAN DD-IS” and dimerlinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) is commercially available as “Plandool-H”, etc. This is preferable. These diesters of dimer acid and / or dimer diol have excellent gloss and emollient effects, and are used in lipsticks and emollient creams. In the topical skin preparation of the present invention, the makeup effect of makeup cosmetics is high when dimer linoleic acid di (phytosteryl / isostearyl / cetyl / stearyl / behenyl) is used, and it is particularly preferable to use this. The content of such dimer acid and / or dimer diol diester in the external preparation for skin is preferably 0.1 to 5% by mass, and more preferably 0.5 to 2% by mass. If the amount is less than this, the effects of the present invention may not be obtained. If the amount is too large, the usability may be impaired.

(3) External preparation for skin of the present invention The external preparation for skin of the present invention relates to an external preparation for skin containing the above polyhydric alcohol ester of alginic acid and / or a salt thereof and a diester of dimer acid and / or dimer diol. It is. More specifically, in a topical skin preparation containing a polyhydric alcohol ester such as propylene glycol ester of alginic acid and / or a salt thereof, dimer acid such as dimer dilinoleic acid di (phytosteryl / isostearyl / cetyl / stearyl / behenyl) The present invention relates to an external preparation for skin characterized by containing a diester.

  In the external preparation for skin of the present invention, the effects of the present invention are improved by containing alginic acid and / or a salt thereof in addition to the above essential components. In the present invention, alginic acid and / or a salt thereof is used together with a polyhydric alcohol ester of alginic acid and / or a salt thereof to improve the protective properties of the skin. It has an effect of further improving the durability, and it is also preferable to use this together. As a salt used for alginic acid and / or a salt thereof used in the present invention, a monovalent salt can be used without any problem, but a sodium salt or potassium salt which is an alkali metal salt can be preferably exemplified. As for preferable content of such alginic acid and / or its salt, 0.1-2 mass% of the whole skin external preparation is preferable. 0.2-1 mass% is more preferable. This is because if the amount is less than this, the effects of the present invention may not be obtained, and if the amount is too large, the hardness may be too high and the usability may be impaired.

  In the external preparation for skin of the present invention, it is also preferable to contain an ester of an acylated amino acid in addition to the above components. Similar to the diester form of dimer acid and / or dimer diol having two ester bonds in the molecule, the ester form of an acylated amino acid is polar having an ester bond and an amide bond in the molecule. It is a high oil agent. By further containing a highly polar oil such as an ester of an acylated amino acid, the makeup-holding effect of the makeup cosmetic of the external preparation for skin of the present invention is further improved. As the ester of acylated amino acid, N-lauroyl-glutamate di (phytosteryl / 2-octyldodecyl) from Ajinomoto Co., Inc. is “Erudu PS203”, and N-lauroyl-glutamate di (phytosteryl / behenyl / 2-octyldodecyl) is “Eldue PS304”, N-lauroyl-glutamate di (cholesteryl / 2-octyldodecyl) is “Eldue CL202”, N-lauroyl-glutamate diester (cholesteryl / behenyl / 2-octyldodecyl) is “Eldue CL301”, N-lauroyl -Sarcosine-isopropyl is commercially available as "Eldue SL205", which can be purchased and used, and is preferred. Among these, it is particularly preferable to use N-lauroyl-glutamate di (phytosteryl / 2-octyldodecyl).

  Further, the external preparation for skin of the present invention is preferably an oil-in-water emulsifier type utilizing the emulsifying action of a polyhydric alcohol ester of alginic acid, and the propylene glycol and / or alginic acid network of alginic acid in this external aqueous phase In order to strengthen the structure, it is also a preferred form to contain a polyvalent metal salt. The metal root of the polyvalent metal salt used in the external preparation for skin of the present invention can be any polyvalent metal root that can be used in cosmetics, etc., but calcium, magnesium, aluminum, zinc, nickel , Copper, iron and the like can be preferably exemplified, among which calcium, aluminum and zinc are more preferable. As the counter ion of the metal root of these polyvalent metal salts, any of chlorine ion, sulfate ion, nitrate ion and the like can be used, which is preferable. These polyvalent metal salts are coordinated to the carboxylic acid portion of the alginic acid and / or salt thereof, participate in ionic crosslinking between carboxylic acids, and contribute to the maintenance of the network structure of the pharmaceutical system.

  In the external preparation for skin of the present invention, in addition to the above-mentioned components, optional components that are usually used in cosmetics and external preparations for skin can be contained within the range not impeding the effects of the present invention. Such optional ingredients include, for example, macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, hydrogenated coconut oil Oils such as hardened oil, mole, hardened castor oil, beeswax, candelilla wax, carnauba wax, ibotarou, lanolin, reduced lanolin, hard lanolin, jojoba wax, waxes, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum , Hydrocarbons such as microcrystalline wax, higher fatty acids such as oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid, cetyl alcohol, stearyl alcohol, isostearyl Alcohol, behenyl alcohol, octyldodecanol, higher alcohol such as myristyl alcohol, cetostearyl alcohol, cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, malic acid Diisostearyl, di-2-ethylhexanoic acid ethylene glycol, dicaprate neopentyl glycol, di-2-heptylundecanoic acid glycerin, tri-2-ethylhexanoic acid glycerin, tri-2-ethylhexanoic acid trimethylolpropane, tri Synthetic ester oils such as trimethylolpropane isostearate and pentane erythritol tetra-2-ethylhexanoate, dimethylpolysiloxane, methylphenylpoly Loxane, linear polysiloxane such as diphenylpolysiloxane, cyclic polysiloxane such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane, amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, Oil agents such as silicone oil such as modified polysiloxane such as fluorine-modified polysiloxane, anionic surfactants such as fatty acid soap (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, triethanolamine ether of alkyl sulfate, chloride Cationic surfactants such as stearyltrimethylammonium, benzalkonium chloride, laurylamine oxide, imidazoline-based amphoteric surfactants (2-cocoyl-2-imida Zolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), amphoteric surfactants such as acylmethyltaurine, sorbitan fatty acid esters (sorbitan) Monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (glyceryl monostearate, etc.), propylene glycol fatty acid esters (propylene glycol monostearate, etc.), hardened castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbitol monolaurate, etc.), POE glycerin fatty acid ester Tells (POE-glycerol monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkyl phenyl ethers (POE nonylphenyl) Ethers, etc.), Pluronic types, POE / POP alkyl ethers (POE / POP2-decyltetradecyl ether, etc.), Tetronics, POE castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), Nonionic surfactants such as sucrose fatty acid ester and alkyl glucoside, polyhydric alcohols such as erythritol, sorbitol, xylitol, maltitol, sodium pyrrolidonecarboxylate, lactic acid, sodium lactate, etc. Moisturizing ingredients, guar gum, quince seed, carrageenan, galactan, gum arabic, pectin, mannan, starch, xanthan gum, curdlan, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylhydroxypropylcellulose, chondroitin sulfate, dermatan sulfate, glycogen, heparan sulfate , Hyaluronic acid, sodium hyaluronate, gum tragacanth, keratan sulfate, chondroitin, mucoitin sulfate, hydroxyethyl guar gum, carboxymethyl guar gum, dextran, kerato sulfate, locust bean gum, succinoglucan, caronic acid, chitin, chitosan, carboxymethyl chitin, Agar, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, polyacyl Thickeners such as sodium laurate, polyethylene glycol, bentonite, surface may be treated, mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate Such as powders, the surface may be treated, bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide inorganic pigments, the surface may be treated Pearl agents such as titanium mica, fish phosphorus foil, bismuth oxychloride, red 202, red 228, red 226, yellow 4, blue 404, yellow 5, red 505 which may be raked No., Red No. 230, Red No. 223, Orange No. 201, Red No. 213, Yellow No. 204, Yellow No. 203, Blue No. 1, Green No. 201, Purple No. 201, Red Organic dyes such as No. 204, polyethylene powder, polymethyl methacrylate, nylon powder, organic powders such as organopolysiloxane elastomers, paraaminobenzoic acid-based UV absorbers, anthranilic acid-based UV absorbers, salicylic acid-based UV absorbers , Cinnamic acid UV absorber, benzophenone UV absorber, sugar UV absorber, 2- (2′-hydroxy-5′-t-octylphenyl) benzotriazole, 4-methoxy-4′-t-butyldi UV absorbers such as benzoylmethane, lower alcohols such as ethanol and isopropanol, vitamin A or derivatives thereof, vitamin B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 or derivatives thereof, vitamin B12, vitamin B15 Or bitumen of its derivatives, etc. Class B, alpha-tocopherol, beta-tocopherol, .gamma.-tocopherol, vitamin E such as vitamin E acetate, vitamin D, vitamin H, pantothenic acid, pantethine, and vitamins pyrroloquinoline quinone or the like can preferably be mentioned. The skin external preparation of this invention can be manufactured by processing these according to a conventional method.

  The skin external preparation of the present invention thus obtained comprises anti-inflammatory agents such as glycyrrhizic acid, alkyl glycyrrhetinate and salts thereof, blood circulation promoters such as vitamin E and / or derivatives thereof, ascorbic acid phosphate ester, ascorbic acid glucoside It is also an effective use of the present invention to contain an active ingredient of one or more quasi-drugs selected from whitening agents such as kojic acid to make a quasi-drug. When these anti-inflammatory agents and whitening agents are contained, the quasi-drugs with anti-inflammatory action or the quasi-drugs with whitening action are used by utilizing the characteristics as active ingredients of the quasi-drugs. It is also possible and preferable.

The external preparation for skin of the present invention can be obtained by treating these components according to a conventional method. The product form of the external preparation for skin of the present invention is preferably used in an oil-in-water emulsion formulation, and the product form is not particularly limited. Specifically, creams, emulsions, essence milks, A milk lotion etc. can be illustrated.

  Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that the present invention is not limited only to the examples.

  In accordance with the prescription shown below, after a) was mixed, it was heated to 70 ° C., and after b) was mixed and heated to 70 ° C., it was stirred and emulsified with a homomixer. Further, C) and D) heated to 70 ° C. were sequentially added with stirring. This was cooled with stirring to obtain Cream 1 of the present invention. In cream 1 of Example 1, dimer linoleic acid di (isostearyl / phytosteryl / cetyl / stearyl / behenyl) was replaced with water as Comparative Example 1, and propylene glycol alginate was replaced with water as Comparative Example 2, Comparative Example 3 was obtained by substituting dimerlinoleic acid di (isostearyl / phytosteryl / cetyl / stearyl / behenyl) and propylene glycol alginate together with water.

I)
Propylene glycol ester alginate: “Kimiloid BF” (Kimika Co., Ltd.) 1.0 mass%
Sodium alginate 0.5% by mass
1,3-butanediol 6.0% by mass
Glycerin 5.0% by mass
Phenoxyethanol 0.3% by mass
Pure water 38.0% by mass
B)
2-Ethylhexanoic acid triglyceride 8.0 mass%
Benzyl ursolate 0.1% by mass
Isostearic acid 1.0% by mass
Dimer dilinoleic acid di (isostearyl / phytosteryl / cetyl / stearyl / behenyl) ... "Plandool-H" (manufactured by Nippon Seika Co., Ltd.) 0.5% by mass
Sorbon S60A 0.5 mass%
Polyethylene glycol monostearate (25EO) 0.5% by mass
Tri (capryl / caprin / myristin / stearic acid) triglyceride ... "Saracos 334" (Nisshin Oilio Co., Ltd.) 2.7 mass%
Behenyl alcohol 0.3% by mass
Squalane 1.0 mass%
N-lauroyl glutamate di (phytosteryl / 2-octyldodecyl)
... "El Dew PS203" (Ajinomoto Co., Inc.) 0.5% by mass
Methyl polysiloxane 1.0% by mass
C)
Calcium chloride 0.05% by mass
Pure water 3.5% by mass
D)
Potassium hydroxide 0.1% by mass
Pure water 29.45% by mass

According to the following prescription, a) was well mixed and stirred while heating to 70 ° C., and b) was added and stirred to prepare a foundation for evaluation.
(Foundation prescription)
I)
Titanium dioxide 12.0 mass%
Bengala 1.0 mass%
Yellow iron oxide 3.0% by mass
Beeswax 1.0 mass%
Vaseline 1.0% by mass
2-Ethylhexanoic acid triglyceride 6.0% by mass
Dimethicone 3.0% by mass
POE (25EO) monostearate 1.0% by mass
Glyceryl monostearate 0.7% by mass
Phenoxyethanol 0.3% by mass
1,3-butanediol 8.0% by mass
Glycerin 8.0% by mass
B)
Carbopol 0.4% by mass
Pure water 54.6% by mass

<Test Example 1> Evaluation 1 of makeup holding under severe conditions
In the 12 subjects, after washing the face, left and right separately, the cream 1 of Example 1, the comparative example 1, the comparative example 2, the cream of the comparative example 3, and any two are selected from among the creams not applied, Each 0.5g of cream was used on one face, and then the foundation was used on all faces. At this time, each cream was selected to be used in 5 sites, and the non-application was selected to be 4 sites. Then, they were allowed to rest for 2 hours in a room at 32 ° C. and 80% humidity, and evaluated for makeup collapse. The evaluation was performed by two expert evaluators based on the evaluation criteria described in Table 1 below using “dullness”, “shine”, and “fun” as indices. That is, 4 or 5 sites were evaluated by 2 people for one sample, and the values were averaged. The evaluation results are shown in Table 2.

  From the results of Table 2, when the non-application and Comparative Example 3 were compared, the makeup lasting time was improved, and the effect as a base cosmetic was recognized in Comparative Example 3, but this includes “Plandour H” or “ In Comparative Example 1 and Comparative Example 2 to which “Kimiloid BF” was added, the makeup lasting was further improved, and in Cream 1 containing “Kimiloid BF” and “Plandour H”, it was remarkable compared to any of these four It can be seen that the improvement of long-lasting makeup is recognized. In other words, it can be said that the cream 1 is considered to have an improvement in makeup lasting due to the synergistic effect of “Prandeur H” and “Kimiroid BF”.

  In accordance with the prescription shown below, after a) was mixed, it was heated to 70 ° C., and after b) was mixed and heated to 70 ° C., it was stirred and emulsified with a homomixer. Further, C) and D) heated to 70 ° C. were sequentially added with stirring. This was cooled with stirring to obtain Cream 2 of the present invention. In Example 2, dimer dilinoleate dimer dilinoyl was replaced with dimer dilinoleate di (isostearyl / phytosteryl) cream 3, dimer dilinoleate dimer dilinoyl was replaced with diisostearate dimer dilinoyl Cream 6 was obtained by replacing sodium alginate with water. Cream 6 was obtained by replacing cream 5, di-N-lauroyl glutamate (phytosteryl / 2-octyldodecyl) with water.

I)
Propylene glycol ester alginate: “Kimiloid BF” (Kimika Co., Ltd.) 0.2% by mass
Sodium alginate 0.5% by mass
1,3-butanediol 6.0% by mass
Glycerin 5.0% by mass
Phenoxyethanol 0.3% by mass
Pure water 38.0% by mass
B)
2-Ethylhexanoic acid triglyceride 8.0 mass%
Benzyl ursolate 0.1% by mass
Isostearic acid 1.0% by mass
Dimer dilinoleic acid dimer dilinoyl: “LUSPLAN DD-DA” (manufactured by Nippon Seika Co., Ltd.) 2.0 mass%
Sorbon S60A 0.5 mass%
Polyethylene glycol monostearate (25EO) 0.5% by mass
Tri (capryl / caprin / myristin / stearic acid) triglyceride ... "Saracos 334" (Nisshin Oilio Co., Ltd.) 2.7 mass%
Behenyl alcohol 0.3% by mass
Squalane 1.0 mass%
N-lauroyl glutamate di (phytosteryl / 2-octyldodecyl)
... "El Dew PS203" (Ajinomoto Co., Inc.) 0.5% by mass
Methyl polysiloxane 1.0% by mass
C)
Calcium chloride 0.05% by mass
Pure water 3.5% by mass
D)
Potassium hydroxide 0.1% by mass
Pure water 28.75% by mass

<Test Example 2> Evaluation 2 of makeup holding under severe conditions
In 15 subjects, in the same manner as in Test Example 1, each sample of Cream 2, Cream 3, Cream 4, Cream 5, Cream 6, and Comparative Example 3 of Example 1 was used in the same manner as in Test Example 1. Evaluation was conducted. The evaluation results are shown in Table 3.

  From the results of Table 3, compared to the cream of Comparative Example 3 of Example 1, in Example 2, cream 2 using dimer dilinoleate dimer dilinoyl, dimer dilinoleate dimer dilinoyl was added to dimer dilinoleate dimer. In cream 3 in which (isostearyl / phytosteryl) is substituted, and in cream 4 in which dimer dilinoyl dimer dilinoleate is substituted with dimer dilinoyl diisostearate, the cosmetic durability is improved in the same manner as cream 1 in Example 1. understood. Furthermore, in the formulation of cream 2, although the effect of cream 6 in which sodium alginate is replaced with water and cream 5, N-lauroyl glutamate di (phytosteryl / 2-octyldodecyl) is replaced with water is recognized, the effect is cream No. 2 was more prominent, and it was found that sodium alginate and N-lauroyl glutamate (phytosteryl / 2-octyldodecyl) also contributed to the long-lasting effect.

Claims (8)

An external preparation for skin containing 1) a polyhydric alcohol ester of alginic acid and / or a salt thereof, and 2) a diester of dimer acid and / or dimer diol. The external preparation for skin according to claim 1, wherein the polyhydric alcohol ester of alginic acid is a propylene glycol ester of alginic acid. The external preparation for skin according to claim 1 or 2, wherein the diester of dimer acid and / or dimer diol is dimer dilinoleate (diphytosteryl / isostearyl / cetyl / stearyl / behenyl). Furthermore, alginic acid and / or its salt are contained, The skin external preparation in any one of Claims 1-3 characterized by the above-mentioned. The skin external preparation according to any one of claims 1 to 4, further comprising an ester of an acylated amino acid. The skin external preparation according to any one of claims 1 to 5, wherein the ester of the acylated amino acid is N-lauroyl-glutamate di (phytosteryl / 2-octyldodecyl). It is an oil-in-water type emulsifier type, The skin external preparation in any one of Claims 1-6 characterized by the above-mentioned. The skin external preparation according to any one of claims 1 to 7, which is a cosmetic.