JP6866718B2 - Introduced cosmetics - Google Patents

Description

The present invention relates to an introductory cosmetic that can be used before skin care to improve its effect.

Skin care cosmetics such as lotions, milky lotions, beauty essences, and creams contain various moisturizers and oils (emollients) in addition to the main component water in order to effectively moisturize the skin. One of the purposes of skin care is to replenish the skin with water and retain the water, but it is difficult to retain the water for a long time.
Conventionally, studies have been made to enhance the water retention effect of moisturizers, for example, amino acid derivatives (trimethylglycine, N-acylamino acid ester, etc.), protein hydrolysates (hydrolyzed collagen, hydrolyzed elastin, hydrolyzed silk, etc.). , Various highly functional moisturizing ingredients such as acidic mucopolysaccharide (hyaluronic acid, chondroitin sulfate, etc.) have been proposed.
However, in the case of rough skin damaged by dryness or inflammation, the skin may not be in a state where it can sufficiently accept the moisturizing component.

Therefore, as a means for sufficiently obtaining the moisturizing effect of skin care, Patent Document 1 (Japanese Unexamined Patent Publication No. 2009-91274) discloses a non-woven fabric for a decorative sheet used by impregnating it with a cosmetic water. It has been proposed that the non-woven fabric for use contains cellulose-based fibers and hydrophobic fibers, and that the hydrophobic fibers are unevenly distributed on the surface portion of the non-woven fabric for decorative sheets.
It is described that the decorative sheet using the non-woven fabric disclosed in Patent Document 1 easily retains the cosmetic water and has good transfer of the cosmetic water to the skin.

Further, as a cosmetic that is used before the application of the skin care cosmetic and effectively improves the effect of the skin care cosmetic including its moisturizing effect, that is, a so-called introductory cosmetic, Patent Document 2 (Japanese Unexamined Patent Publication No. 2004-137219) Discloses a preskin care cosmetic containing polymethacryloyloxyethyl phosphorylcholine. Compared with the case where only the conventional skin care cosmetics are applied, by applying the preskin care cosmetics before the skin care cosmetics, the skin moisture retention effect obtained by the conventional skin care cosmetics is improved, and the skin care cosmetics. It is stated that the moisturizing effect of the skin can be further enhanced.

However, it cannot be said that the development of technology for the basics of skin care, which is to rehydrate the skin and maintain the moisturizing effect, is not sufficient, and the improvement of the moisturizing effect is the occurrence of stickiness and the feeling of penetration into the skin. It can also lead to a decline. Furthermore, consumers are also demanding the development of technology that gives them a feeling of improved skin care effects.

Japanese Unexamined Patent Publication No. 2009-91274 Japanese Unexamined Patent Publication No. 2004-137219

Therefore, in view of the above circumstances, it is an object of the present invention to provide an introductory cosmetic that is not sticky, has a high penetration into the skin, and can improve the transparency of the skin after skin care and the effect of skin care. To do.

As a result of diligent studies to solve the above problems, the present inventors have identified specific alkylene oxide-added derivatives having skin moisturizing or emollient properties, divalent alcohols having 3 to 6 carbon atoms, and extracts of camellia. It has been found that the composition contained in the weight ratio of the above can achieve the above object as an introductory cosmetic, and the present invention has been completed.
That is, the present invention relates to the following.

[1] One or more selected from the group consisting of an alkylene oxide-added derivative of glycerin represented by the formula (A) and an alkylene oxide-added derivative of an alkyl glycoside represented by the formula (II). 0.5 to 10% by mass,
(B) 3 to 30% by mass of dihydric alcohol having 3 to 6 carbon atoms, and (C) 0.001 to 0.5% by mass of camellia extract.
Introductory cosmetics to contain.

[In formula (I), Gly is a residue obtained by removing a hydroxyl group from glycerin, PO is an oxypropylene group, EO is an oxyethylene group, BO is an oxybutylene group, and a, b and c are PO, EO and BO, respectively. A + b is 1 to 30, c is 1 to 5, and the content ratio (PO / EO) of PO and EO is 1/5 to 5/1 in terms of mass ratio. ]

[In formula (II), R is an alkyl group having 1 to 4 carbon atoms, G is a residue obtained by removing a hydroxyl group from glucose, EO is an oxyethylene group, PO is an oxypropylene group, BO is an oxybutylene group, and x. , Y and z indicate the average number of added moles of EO, PO and BO, respectively. x is 5 to 20, y is 1 to 10, z is 1 to 2, and the ratio of the EO content to the total content of EO and PO (EO / (EO + PO)) is 55 to 90% by mass. .. ]
[2] The introduced cosmetic according to [1], which further contains (D) apricot juice in an amount of 0.01 to 1% by mass.

According to the present invention, it is possible to provide an introductory cosmetic that is less sticky at the time of use, has a high penetration into the skin, and can satisfactorily improve the transparency of the skin after skin care and the effect of skin care.

The introduced cosmetic of the present invention is one selected from the group consisting of an alkylene oxide-added derivative of glycerin represented by the formula (A) (I) and an alkylene oxide-added derivative of an alkyl glycoside represented by the formula (II). Alternatively, it contains two or more kinds, (B) a dihydric alcohol having 3 to 6 carbon atoms, and (C) a camellia extract. Hereinafter, these will be described in order.
The "introduced cosmetic" in the present invention is a cosmetic used in the pre-stage of skin care and has a role of enhancing the effects of the skin care cosmetic such as skin moisturizing and protective effects.

(A): alkylene oxide-added derivative In the introduced cosmetic of the present invention, the alkylene oxide-added derivative contained as the component (A) is an alkylene oxide-added derivative of glycerin represented by the formula (I) and the formula (II). It is selected from the group consisting of alkylene oxide-added derivatives of alkyl glycosides represented by.

[In formula (I), Gly is a residue obtained by removing a hydroxyl group from glycerin, PO is an oxypropylene group, EO is an oxyethylene group, BO is an oxybutylene group, and a, b and c are PO, EO and BO, respectively. A + b is 1 to 30, c is 1 to 5, and the content ratio (PO / EO) of PO and EO is 1/5 to 5/1 in terms of mass ratio. ]

[In formula (II), R is an alkyl group having 1 to 4 carbon atoms, G is a residue obtained by removing a hydroxyl group from glucose, EO is an oxyethylene group, PO is an oxypropylene group, BO is an oxybutylene group, and x. , Y and z indicate the average number of added moles of EO, PO and BO, respectively. x is 5 to 20, y is 1 to 10, z is 1 to 2, and the ratio of the EO content to the total content of EO and PO (EO / (EO + PO)) is 55 to 90% by mass. .. ]

In the formula (I), the oxypropylene group represented by PO and the oxybutylene group represented by BO may be either linear or branched, but propylene oxide (1,2-epoxypropane) and 1,2. -The oxypropylene group and the oxybutylene group obtained by butylene oxide are preferable.
In the formula (I), for the oxypropylene group represented by PO and the oxyethylene group represented by EO, the total number of average addition moles (a + b) per hydroxyl group of glycerin is 1 to 30, preferably 2 to 30. It is 20, and more preferably 3 to 10. Regarding the oxybutylene group represented by BO, the average number of moles of c added per hydroxyl group of glycerin is 1 to 5, preferably 1 to 3, and more preferably 1 to 2.
In the alkylene oxide-added derivative of glycerin represented by the formula (I), the content ratio (PO / EO) of the oxypropylene group represented by PO and the oxyethylene group represented by EO is 1/5 to 5 / by mass ratio. It is 1, preferably 1/2 to 4/1, and more preferably 1/2 to 3/1.
Further, the oxypropylene group and the oxyethylene group may be added to the hydroxyl group of glycerin in either a random form or a block form, but the oxypropylene group and the oxyethylene group may be added randomly in order to obtain a high permeation feeling. preferable. The oxybutylene group is added in a block shape to the end of the alkylene oxide chain.

The alkylene oxide addition derivative of glycerin represented by the formula (I) can be appropriately synthesized and used by a alkylene oxide addition reaction known per se, but "WILBRIDE (registered trademark) S" provided by NOF CORPORATION. -753 ”(in formula (I), a + b = 4.3, c = 1, and the mass ratio of PO and EO (PO / EO) = 4/5) or the like is used. You can also.

In the formula (II), examples of the alkyl group having 1 to 4 carbon atoms represented by R include methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl and tert-butyl, and methyl, ethyl and the like are preferable. , Methyl is more preferred.

In the formula (II), the oxypropylene group represented by PO and the oxybutylene group represented by BO may be either linear or branched, but propylene oxide (1,2-epoxypropane) and The oxypropylene group and the oxybutylene group obtained by 1,2-butylene oxide are preferable.
Further, in the formula (II), the average number of moles of the oxyethylene group (EO) represented by x is 5 to 20, preferably 6 to 15, and even more preferably 6 to 10. The average number of moles of oxypropylene group (PO) represented by y is 1 to 10, preferably 2 to 8, and even more preferably 2 to 5. The average number of moles of the oxybutylene group represented by z is 1 to 2, preferably 1.
In the alkylene oxide-added derivative of the alkylglycoside represented by the formula (II), the ratio of the content of the oxyethylene group represented by EO to the total content of the oxyethylene group represented by EO and the oxypropylene group represented by PO. (EO / (EO + PO)) is 55 to 90% by mass, preferably 60 to 80% by mass, and more preferably 65 to 75% by mass.
Further, the oxyethylene group and the oxyprepyrene group may be added to the hydroxyl group of the alkyl glycoside in either a block form or a random form, but are preferably added in a random form. The oxybutylene group is added in a block shape to the end of the alkylene oxide chain.

In the alkylene oxide addition derivative of the alkyl glycoside represented by the formula (II), the alkylene oxide group is added to all the free hydroxyl groups of the alkyl glycoside.

The alkylene oxide addition derivative of the alkyl glycoside represented by the formula (II) can be appropriately synthesized and used by an alkylene oxide addition reaction known per se.

In the present invention, as the component (A), one or more can be selected and used from the group consisting of the above-mentioned alkylene oxide-added derivative of glycerin and the alkylene oxide-added derivative of alkyl glycoside.

The content of the component (A) in the introduced cosmetic of the present invention is 0.5 to 10% by mass, preferably 1 to 8% by mass, and more preferably 1.5 to 5% by mass.
If the content of the component (A) is less than 0.5% by mass, the feeling of penetration into the skin is lowered, and there is a possibility that the feeling of transparency after skin care and the feeling of sufficient improvement in the effect of skin care cannot be obtained. In addition, if the content of the component (A) is more than 10% by mass, stickiness may occur and the feeling of penetration into the skin may decrease, and the skin care effect may not be sufficiently improved after skin care. There is.

(B): Dihydric alcohol having 3 to 6 carbon atoms The dihydric alcohol having 3 to 6 carbon atoms contained as the component (B) in the cosmetic introduced in the present invention is a chain aliphatic alcohol having 3 to 6 carbon atoms. It is a compound having a structure in which each of two carbon atoms of a hydrocarbon is substituted with a hydroxyl group. The chain-like aliphatic hydrocarbon in which two hydroxyl groups are substituted may be either a straight chain or a branched chain, and may be saturated or unsaturated, but a saturated hydrocarbon is preferable.
Specifically, 1,2-propanediol (propylene glycol), 1,3-propanediol, 1,2-butanediol, 1,3-butanediol (butylene glycol), 1,4-butanediol, 1, 2-Pentanediol (pentylene glycol), 1,5-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 2-methylpentane-2,4-diol (hexylene glycol), dipropylene glycol Among them, 1,2-propanediol (propylene glycol), 1,3-propanediol, 1,3-butanediol (butylene glycol), 1,2-pentanediol (pentylene glycol), di Propylene glycol and 1,2-hexanediol are preferable, and 1,3-propanediol, 1,3-butanediol (butylene glycol) and 1,2-pentanediol (pentylene glycol) are particularly preferable.
With dihydric alcohol having less than 3 carbon atoms, it is difficult to obtain a sufficient effect of improving the transparency of the skin after skin care. On the other hand, a dihydric alcohol having more than 6 carbon atoms is not preferable because it reduces the feeling of penetration into the skin and increases the cost.
The above-mentioned dihydric alcohol having 3 to 6 carbon atoms can be contained in the introductory cosmetic of the present invention as the component (B), either alone or in combination of two or more.

The content of the component (B) in the introduced cosmetic of the present invention is 3 to 30% by mass, preferably 5 to 25% by mass, and more preferably 8 to 20% by mass.
If the content of the component (B) is less than 3% by mass, the feeling of penetration into the skin is lowered, and there is a possibility that the feeling of transparency after skin care and the feeling of sufficient improvement in the effect of skin care cannot be obtained. Further, if the content of the component (B) is more than 30% by mass, stickiness may occur and the feeling of penetration into the skin may decrease, and the effect of skin care may not be sufficiently improved after skin care. ..

(C) Camellia extract The camellia extract contained as the component (C) in the cosmetics introduced in the present invention is from camellia (Camellia japonica) belonging to the genus Camellia of the Theaceae family, its variants and related species of plants. It is an extracted extract.
Examples of camellia-related species include Camellia reticulata, and examples of camellia varieties include Camellia rusticana Honda, Camellia rusticana Honda, Camellia japonica var. ) Nagam.) And the like.
For the purposes of the present invention, an extract of Camellia japonica is preferred.

For extraction, parts such as fruits such as camellia, leaves, flowers, seeds, and bark can be used, and among them, seeds and leaves are preferably used.
Extraction can be carried out according to a conventional method. For example, seeds such as camellia and plants such as leaves can be shredded, dried, pulverized, etc., immersed in an extraction solvent, and allowed to stand or stirred. The plant may be ultrasonically crushed, homogenated or the like in the extraction solvent.
Extraction solvents include hydrocarbons such as hexane and benzene, esters such as ethyl acetate, ketones such as acetone, ethers such as diethyl ether and tetrahydrofuran, halogenated hydrocarbons such as chloroform and methylene chloride, and lower alcohols. , Alcohols such as polyhydric alcohols, water and the like, and one type can be used alone or two or more types can be used in combination.
For the purposes of the present invention, water; lower alcohols such as methanol, ethanol, propanol and isopropanol; and polar solvents such as polyhydric alcohols such as 1,2-propanediol, 1,3-butanediol and glycerin are preferably used.
The amount of the extraction solvent used is usually about 5 to 100 times the weight of a plant such as camellia. The extraction temperature is appropriately determined according to the type of extraction solvent used. For example, when the extraction solvent is water, the extraction temperature is usually about 20 ° C. to 120 ° C., and when the extraction solvent is a lower alcohol, it is usually about 20 ° C. to 50 ° C., preferably room temperature. After the extraction treatment, the extract can be obtained by solid-liquid separation by means such as filtration and centrifugation.

The extract such as camellia may be used as it is, or the extraction solvent may be distilled off and concentrated according to a conventional method, and if necessary, treatment such as purification and drying may be performed before use. Further, the dried extract may be used by dissolving it in one or more kinds of solvents such as water, ethanol and 1,3-butanediol.
In the present invention, an extract may be obtained from seeds, leaves, etc. of camellia by the above method and used. For example, "Camellia seed extract BG" (manufactured by NOF CORPORATION), "Camellia leaf extract BG" Commercially available products such as (manufactured by NOF CORPORATION) can also be used.

The content of the component (C) in the introduced cosmetic of the present invention is 0.001 to 0.5% by mass, preferably 0.005 to 0.3% by mass, in terms of the amount of dry residual substance of the camellia extract. It is more preferably 0.01 to 0.1% by mass.
Here, the "dry residual substance amount" means the mass of the residual substance when each extract is dried and solidified.
If the content of the component (C) is less than 0.001% by mass, the feeling of penetration into the skin is lowered, and there is a possibility that the feeling of transparency after skin care and the feeling of sufficient improvement in the effect of skin care cannot be obtained. Further, if the content of the component (C) is more than 0.5% by mass, the effect commensurate with the blending amount cannot be seen, which is uneconomical.

The introduced cosmetic of the present invention preferably further contains the following component (D) in addition to the above components (A) to (C). As a result, the effect of the present invention becomes even more remarkable.

(D) Apricot fruit juice The apricot fruit juice contained as the component (D) in the introduced cosmetics of the present invention is apricot (Prunus armenica L.) of the genus Plum of the family Plum, and apricot (Prunus armeniaca L. var), which is a cultivated variety of apricots. Apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots, apricots.
In the present invention, fruit juice obtained by pressing fruits such as apricots and apricots may be used as it is, fruit juice obtained by further concentrating or reducing it may be used, and the fruit juice or concentrated fruit juice may be used. It is also possible to use a processed product obtained by subjecting the concentrated and reduced fruit juice to treatments such as filtration, centrifugation, dilution with various solvents, and fractionation with a column or the like. That is, the "fruit juice" in the present invention refers to the fruit juice itself obtained by pressing fruits such as apricots and apricots, concentrated fruit juice or concentrated reduced fruit juice, or processed products thereof, and means and fruit juice for obtaining fruit juice from the fruit. The treatment for apricots does not include extraction with water or organic solvents.
In the present invention, as the apricot juice, a fruit juice prepared by pressing apricot fruit or a fruit juice obtained by further concentration or various treatments can be used. For example, "Apricot juice PH" (NOF) can be used. Commercially available products such as (manufactured by Oil Co., Ltd.) can also be used.

When the introduced cosmetic of the present invention contains the component (D), the content thereof is preferably 0.001 to 1% by mass in terms of the amount of dry residual substance with respect to the total amount of the cosmetic. It is more preferably ~ 0.8% by mass, and even more preferably 0.1 to 0.5% by mass.
When the content of the component (D) is within the above range, it is more preferable in terms of the feeling of penetration into the skin, the feeling of transparency after skin care, and the feeling of improving the effect of skin care.

Introduced cosmetics of the present invention include solvents such as water and lower alcohols (ethanol, isopropanol, etc.) in addition to the above components (A) to (D); other than the components (B), as long as the characteristics of the present invention are not impaired. Moisturizers such as polyhydric alcohols (glycerin, etc.), sugar alcohols (sorbitol, etc.), amino acids (sodium pyrrolidone carboxylate, alanine, etc.), acidic mucopolysaccharides (hyaluronic acid, chondroitin sulfate, etc.); Ethylene sorbitan monostearic acid ester, etc.); Thickening polysaccharide (carrageenan, xanthan gum, locust bean gum, etc.), water-soluble polymer (polyacrylic acid, carboxyvinyl polymer, etc.) thickening / gelling agent; pH adjuster (pH adjuster) Acetic acid, sodium acetate, citric acid, sodium citrate, sodium chloride, etc.); Chelating agent (sodium edetate, etc.); Antioxidant (ascorbic acid, etc.); Preservative (methyl paraoxybenzoate, etc.); Pigment; Dye; Fragrance Etc., general additives such as, etc. can be contained.

The introduced cosmetic of the present invention can preferably be provided in the form of a lotion, a milky lotion, a beauty essence, a mist-like lotion, a cream, a gel, or the like, and is a general production method well known in the art, for example. 17th Amendment General Provisions of Japanese Pharmaceuticals Pharmaceuticals [3] The product can be manufactured according to the methods described in "External liquids", "Creams", "Gels", "Sprays", etc. in each article of the pharmaceuticals.

The introduced cosmetic of the present invention is less sticky when used, has a high penetration feeling into the skin when applied, and has an effect of improving the transparency of the skin after using the skin care cosmetic and the effect of skin care. Excellent.
The introduced cosmetic of the present invention can be used not only before skin care but also during skin care.

Examples of the skin care cosmetics used after using the introduced cosmetics of the present invention include lotions, milky lotions, beauty essences, creams and the like used for the purpose of skin care such as moisturizing and protecting the skin.
The introduced cosmetics of the present invention can particularly preferably improve the effects of aqueous cosmetics such as cosmetics containing useful ingredients such as plant extracts having cell activating and anti-inflammatory effects. it can.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples.

[Examples 1 to 8 and Comparative Examples 1 to 7]
According to the formulations shown in Tables 1 and 2, the introduced cosmetics (toners) of Examples 1 to 8 and Comparative Examples 1 to 7 of the present invention were prepared.
<Manufacturing method>
The components (A) to (D) in Table 1 or the components (A) to (D) and (C') in Table 2 are sequentially added to purified water, mixed, and uniformly dissolved. Introduced cosmetics were obtained by filtration.
In Tables 1 and 2, the content of each component is shown in% by mass. The following raw materials were used as the components shown in Tables 1 and 2.
(* 1) alkylene oxide-added derivative of glycerin; "WILBRIDE S-753" (manufactured by NOF CORPORATION) (Display name: PEG / PPG / polybutylene glycol-8 / 5/3 glycerin)
(* 2) An alkylene oxide-added derivative of methylglucoside; in formula (II), R is methyl, G is a residue obtained by removing a hydroxyl group from glucose, x is 7.25, y is 2.25, and z is 1. , Alkylene oxide-added derivative (* 3) 1,3-propanediol in which the mass ratio of EO to the total content of EO and PO is 71% by mass; "Zemea select propanediol" (DuPontate and Lyle Bioproducts) DuPont Tate & Lyle Bio Products)) (Display name: Propanediol)
(* 4) "Dipropylene glycol DPG-FC" (manufactured by Asahi Glass Co., Ltd.) (Display name: DPG)
(* 5) Tsubaki seed extract; "Tsubaki seed extract BG" (manufactured by Nichiyu Co., Ltd.) (Display name: Tsubaki seed extract (0.8% by mass), BG (50% by mass), water (49.2% by mass) %) (The display name "BG" means 1,3-butanediol (butylene glycol).))
(* 6) Camellia leaf extract; "Camellia leaf extract BG" (manufactured by Nichiyu Co., Ltd.) (Display name: Camellia leaf extract (1% by mass), BG (49.5% by mass), water (49.5% by mass) %)))
(* 7) Apricot juice; "Apricot juice PH" (manufactured by Nichiyu Co., Ltd.) (Display name: Apricot juice (85% by mass), glycerin (15% by mass))
(* 8) Tea leaf extract; "Green tea extract BG" (manufactured by Maruzen Pharmaceuticals Co., Ltd.) (Display name: Tea leaf extract, BG, water)
(* 9) Calendula officinalis flower extract; "Calendula officinalis extract BG-J" (manufactured by Maruzen Pharmaceuticals Co., Ltd.) (Display name: Calendula officinalis flower extract, BG, water)

For each of the introduced cosmetics of Examples 1 to 8 and Comparative Examples 1 to 7 prepared above, (1) stickiness, (2) skin penetration, (3) skin transparency after skin care, and ( 4) The feeling of improvement in skin care effect after skin care was evaluated by the following method.

(1) Stickiness Twenty women (23-55 years old) were used as panelists, and after washing their faces, 0.5 g of each of the introduced cosmetics of Examples and Comparative Examples was applied to all faces, and then all panelists were given Table 3 Skin care with a lotion prepared according to the prescription shown in the above was carried out. At that time, the stickiness felt about the introduced cosmetics was evaluated according to the following evaluation criteria.
<Evaluation criteria>
2 points: When you feel that there is little stickiness.
1 point: If you feel a little sticky.
0 points: When you feel a clear stickiness.
The total score of the evaluation points of 20 persons was calculated and judged according to the following criteria.
<Criteria>
⊚: Total score is 35 points or more; It is a very non-greasy introduction cosmetic.
◯: The total score is 30 points or more and less than 35 points; it is a non-greasy introduction cosmetic.
Δ: The total score is 20 points or more and less than 30 points; it is a slightly sticky introduction cosmetic.
X: Total score is less than 20 points; Introductory cosmetics that feel sticky.

(2) Permeation into the skin Twenty women (23-55 years old) were used as panelists, and after washing their faces, 0.5 g of each of the introduced cosmetics of Examples and Comparative Examples was applied to all faces, and then to all panelists. , Skin care with a lotion prepared according to the formulation shown in Table 3 was carried out. At that time, the feeling of penetration of the introduced cosmetic into the skin was evaluated according to the following evaluation criteria.
<Evaluation criteria>
2 points: When you feel that the feeling of penetration is high.
1 point: When you feel a little permeation.
0 points: When no sense of penetration is felt.
The total score of the evaluation points of 20 persons was calculated and judged according to the following criteria.
<Criteria>
⊚: Total score is 35 points or more; It is an introductory cosmetic with a very high penetration feeling.
◯: Total score is 30 points or more and less than 35 points; Introduced cosmetics having a high penetration feeling.
Δ: Total score is 20 points or more and less than 30 points; Introduced cosmetics having a slightly low permeation feeling.
X: Total score is less than 20 points; Introduced cosmetics with low penetration.

(3) Transparency of skin Twenty women (23-55 years old) were used as panelists, and after washing their faces, 0.5 g of each of the introduced cosmetics of Examples and Comparative Examples was applied to all faces, and then all panelists were applied. Skin care with a lotion prepared according to the formulation shown in Table 3 was carried out. The transparency of the skin after the end of skin care was evaluated according to the following evaluation criteria.
<Evaluation criteria>
2 points: When you feel that the transparency of your skin has improved due to the use of the introduced cosmetics.
1 point: When you feel that the transparency of the skin has improved slightly by using the introduced cosmetics.
0 points: When you do not feel that the transparency of your skin has improved even after using the introduced cosmetics.
The total score of the evaluation points of 20 persons was calculated and judged according to the following criteria.
<Criteria>
⊚: The total score is 35 points or more; it is an introductory cosmetic that greatly improves the transparency.
◯: Total score is 30 points or more and less than 35 points; Introduced cosmetics with improved transparency.
Δ: The total score is 20 points or more and less than 30 points; it is an introductory cosmetic that does not give much improvement in transparency.
X: Total score is less than 20 points; Introduced cosmetics with no improvement in transparency.

(4) Improving skin care effect Twenty women (23-55 years old) were used as panelists, and after washing their faces, 0.5 g of each of the introduced cosmetics of Examples and Comparative Examples was applied to all faces, and then to all panelists. , Skin care with a lotion prepared according to the formulation shown in Table 3 was carried out. The application of the introduced cosmetics and skin care were carried out for 7 consecutive days, and the feeling of improvement in the skin care effect after the completion of the 7 days was evaluated according to the following evaluation criteria.
<Evaluation criteria>
2 points: When you feel that the skin care effect has improved by using the introduced cosmetics.
1 point: When you feel that the skin care effect is slightly improved by using the introduced cosmetics.
0 points: When you do not feel that the skin care effect has improved by using the introduced cosmetics.
The total score of the evaluation points of 20 persons was calculated and judged according to the following criteria.
<Criteria>
⊚: Total score is 35 points or more; It is an introductory cosmetic with a very high sense of improvement in skin care effect.
◯: Total score is 30 points or more and less than 35 points; Introduced cosmetics having a high sense of improvement in skin care effect.
Δ: Total score is 20 points or more and less than 30 points; Introduced cosmetics in which the feeling of improvement in skin care effect is not felt so much.
X: Total score is less than 20 points; Introduced cosmetics that do not give a feeling of improvement in skin care effect.

The evaluation results for each of the above evaluations (1) to (4) are shown in Tables 1 and 2. Tables 1 and 2 show the judgment results for each evaluation item and the total score of the panelists' evaluation points.

[Evaluation results]
As shown in Table 1, the introduced cosmetics of Examples 1 to 8 of the present invention are less sticky, have a high penetration into the skin, improve the transparency of the skin after the end of skin care, and skin care. It was evaluated that a good feeling of improvement in the skin care effect was obtained after the continuous implementation of.
In particular, in the introduced cosmetics of Example 7, which further contained the component (D) in addition to the components (A) to (C), very good evaluations were obtained for all the evaluation items.

On the other hand, as shown in Table 2, the introduced cosmetic of Comparative Example 1 which does not contain the component (A) has insufficient penetration into the skin, and the skin becomes transparent after the skin care is completed and the skin care is continuously performed. It was evaluated that there was no sense of improvement in the skin care effect after the implementation.
(B) The introduced cosmetic of Comparative Example 2 containing no component has insufficient penetration into the skin, and the skin becomes transparent after the skin care is completed and the skin care effect is improved after the skin care is continuously performed. Was evaluated as not feeling so much.
The introduced cosmetics of Comparative Example 3 and Comparative Example 7 containing the component (C'), which is an extract of a plant other than camellia, instead of the component (C), are slightly sticky and have a feeling of penetration into the skin. It was evaluated that it was insufficient, and the transparency of the skin after the end of skin care and the improvement of the skin care effect after continuous skin care were not felt so much.
(A) The introduced cosmetic of Comparative Example 4 in which the content of the component exceeds 10% by mass is slightly sticky, has insufficient penetration into the skin, and improves the skin care effect after continuous skin care. It was evaluated that the feeling was not felt so much.
The introduced cosmetic of Comparative Example 5 containing 50% by mass of the component (B) is sticky, has a low penetration into the skin, and does not give much improvement in the skin care effect after continuous skin care. Was evaluated.
(B) The introduced cosmetic of Comparative Example 6 in which the content of the component is less than 3% by mass has a feeling of transparency of the skin after the end of skin care and a feeling of improvement of the skin care effect after continuous skin care. It was evaluated that it could not be done.

As described in detail above, the present invention provides an introductory cosmetic that is less sticky during use, has a high penetration into the skin, and can satisfactorily improve the transparency of the skin after skin care and the effect of skin care. can do.

Claims (1)

One or more selected from the group consisting of the alkylene oxide-added derivative of glycerin represented by the formula (I) and the alkylene oxide-added derivative of the alkyl glycoside represented by the formula (II). 5-10% by mass,
(B) 3 to 30% by mass of dihydric alcohol having 3 to 6 carbon atoms,
( C) 0.001 to 0.5% by mass of camellia extract, and
(D) 0.01 to 1% by mass of apricot juice
Introductory cosmetics to contain.

[In formula (I), Gly is a residue obtained by removing a hydroxyl group from glycerin, PO is an oxypropylene group, EO is an oxyethylene group, BO is an oxybutylene group, and a, b and c are PO, EO and BO, respectively. A + b is 1 to 30, c is 1 to 5, and the content ratio (PO / EO) of PO and EO is 1/5 to 5/1 in terms of mass ratio. ]

[In formula (II), R is an alkyl group having 1 to 4 carbon atoms, G is a residue obtained by removing a hydroxyl group from glucose, EO is an oxyethylene group, PO is an oxypropylene group, BO is an oxybutylene group, and x. , Y and z indicate the average number of added moles of EO, PO and BO, respectively. x is 5 to 20, y is 1 to 10, z is 1 to 2, and the ratio of the EO content to the total content of EO and PO (EO / (EO + PO)) is 55 to 90% by mass. .. ]