JP7294713B2 - skin cosmetics - Google Patents

Description

TECHNICAL FIELD The present invention relates to a skin cosmetic, and more particularly, to a skin cosmetic which is non-sticky and has an excellent feel in use, which is capable of improving the texture and elasticity of the skin and making the skin smooth and moist. is.

On the surface of the skin, there are thin grooves running like a mesh called sulcus cutis, and between them there are large and small triangles, quadrilaterals, and other flattened areas, which are called ridges. . When the sulcus cutis consists of fine and shallow grooves, the area of the crest is small, and the surface is smooth as a whole, it is called fine-textured skin. On the other hand, if the sulcus cutis is deep, wide and conspicuous, and the bumps are large and the shape has changed, it is called rough skin. The younger skin tends to be the former, and the older or the more stressed or externally stimulating the person is, the more likely it is to be the latter. This change is called texture disorder. It is known that the finer the texture of the skin, the more smooth and transparent the skin becomes, resulting in a cosmetically desirable skin condition. In addition, it is known that when the moisturizing function of the skin declines due to aging or external stimuli, phenomena such as dry skin and accompanying rough skin, wrinkles and slack due to reduced firmness and elasticity of the skin are induced, and the texture is disturbed. there is Therefore, it is extremely important to use skin care ingredients to improve skin quality and texture, improve skin dryness, and make skin smooth as a preventive care for various cosmetically unfavorable skin conditions. is. In addition to the problem of appearance, it is also known that the skin's natural moisturizing function and barrier function will deteriorate if the skin texture is left untreated. had been

In order to prevent such disturbance of texture, various methods such as cosmetics and foods have been proposed. For example, when using skin care cosmetics to suppress rough skin caused by external factors and improve skin texture, ingredients that are effective in promoting metabolism of the skin epidermis, ingredients that are effective in protecting the stratum corneum, hyaluronic acid and collagen. Cosmetics containing ingredients that promote the synthesis of From this point of view, an anti-aging agent stably containing linolenic acid that promotes metabolism (see, for example, Patent Document 1), and texture-improving cosmetics containing sorbitol and/or mannitol and glycerin and/or diglycerin. (see, for example, Patent Document 2), a texture-improving cosmetic blended with an oily component characterized by having a skin permeation index of 2 or more (see, for example, Patent Document 3), and a texture-improving cosmetic blended with ethyl oleate. There have been proposed cosmetics (see, for example, Patent Document 4) that are excellent in the effect of adjusting skin tone.

JP-A-2002-080370 JP-A-2004-051545 JP-A-2004-051539 Japanese Patent Application Laid-Open No. 2006-273807

All of the above-mentioned prior arts have been improved to a certain extent as methods for the purpose of preventing texture disturbance. Complex factors such as improving the barrier function, reducing damage to the skin from external stimuli, and promoting the metabolism of the skin from the inside must be adjusted in an appropriate balance. not present. Therefore, there has been a strong demand for a non-sticky skin cosmetic that can improve skin quality and skin texture, improve skin dryness, and make skin smooth.

As a result of intensive research conducted by the present inventors to achieve the above object,
1 or 2 or more fruit extracts, 1 or 2 or more plant extracts extracted from parts other than fruits, glycerin, dipropylene glycol, 1,3-butylene glycol, 1,3-propanediol By containing one or more moisturizing agents selected from the following, it is possible to improve the texture and elasticity of the skin, to make the skin smooth and moist, and to provide an excellent non-sticky feeling in use. The present invention was completed by discovering that it can be a skin cosmetic.
Furthermore, it was found that the addition of one or more selected from glycyrrhizic acid and its derivatives, glycyrrhizic acid and its derivatives, tranexamic acids, ascorbic acid and its derivatives enhances the action of the present invention. completed.

The first invention of the present application is a skin cosmetic for improving skin texture and elasticity, characterized by containing the following components (A) to (C).
(A) 1 or 2 or more fruit extracts (B) 1 or 2 or more plant extracts extracted from parts other than fruits (C) glycerin, dipropylene glycol, 1,3-butylene glycol, 1 , 1 or 2 or more selected from 3-propanediol

The second invention of the present application is the first aspect of the present application, wherein the component (A) is one or more fruit extracts selected from apple fruit, star fruit fruit, bilberry fruit, and yuzu fruit. A skin cosmetic for improving skin texture and elasticity according to the invention.

In the third invention of the present application, the component (B) is one or two selected from star fruit leaves, bilberry leaves, flowers of Asteraceae plants, pomegranate flowers, peonies, pearl barley seeds, and peony roots. The skin cosmetic for improving skin texture and elasticity according to the first invention or the second invention of the present application, which is a plant extract of more than one species.

The fourth invention of the present application further comprises (D) one or more selected from glycyrrhizic acid and its derivatives, glycyrrhetinic acid and its derivatives, tranexamic acids, ascorbic acid and its derivatives, the first invention of the present application. ~ A skin cosmetic for improving skin texture and elasticity according to any one of the third invention of the present application.

The skin cosmetic of the present invention can provide a non-sticky skin cosmetic that improves the texture and elasticity of the skin, makes it possible to make the skin smooth and moist, and has an excellent feel in use. .

The configuration of the present invention will be described in detail below.

Component (A) used in the skin cosmetic of the present invention is one or more fruit extracts. Specific examples of raw materials for fruit extracts include apple fruit, star fruit, bilberry fruit, and yuzu fruit. Fruit extracts are obtained by adding water, lower alcohols such as ethanol, polyhydric alcohols such as propylene glycol and 1,3-butylene glycol, polyhydric alcohol alkyl ethers such as diethylene glycol ether, and other polar solvents after crushing each fruit. , or a mixture thereof, but not limited thereto. These ingredients are known to contain sugars and polyphenols in a well-balanced manner, and the ingredients extracted as described above are generally adjusted to contain about 1 to 10%. Available as an extract. These fruit extracts can be used singly or in combination of two or more in the skin cosmetic of the present invention.

The amount of component (A) used in the skin cosmetic of the present invention is preferably 0.0001 to 1.0%, more preferably 0.001 to 1.0% of the entire skin cosmetic composition. 0.5%. If it is less than 0.0001%, it may not be possible to sufficiently improve skin texture and elasticity. , may impair usability.

The component (B) used in the skin cosmetic of the present invention is one or more plant extracts extracted from parts other than fruits. Specific examples of raw materials for plant extracts extracted from parts other than fruit include star fruit leaves, bilberry leaves, Asteraceae plant flowers, pomegranate flowers, peonies flowers, pearl barley seeds, and peony seeds. roots and the like. For plant extracts extracted from parts other than fruits, water, lower alcohols such as ethanol, polyhydric alcohols such as propylene glycol and 1,3-butylene glycol, and polyhydric alcohols such as diethylene glycol ether are used as is or after pulverization of each raw material. It can be obtained by extraction with an alcohol alkyl ether or other polar solvent, or a mixture thereof, but is not limited to these. The components extracted as described above are generally available as plant extracts adjusted to contain about 1 to 10%. In the skin cosmetic of the present invention, plant extracts extracted from sites other than these fruits can be used singly or in combination of two or more.

The amount of component (B) used in the skin cosmetic composition of the present invention is preferably 0.0001 to 2.0%, more preferably 0.001 to 2.0% of the total composition of the skin cosmetic composition. 1.0%. If it is less than 0.00001%, the effect of improving skin texture and elasticity may not be sufficiently obtained. The feeling of use may be impaired, such as becoming stronger.

Component (C) used in the present invention is one or more selected from glycerin, dipropylene glycol, 1,3-butylene glycol, and 1,3-propanediol.

The content of component (C) used in the present invention is 3.0 to 20.0%, more preferably 5.0 to 20.0%, of the total composition. If it is less than 3%, a sufficient moisturizing effect may not be obtained.

Component (D) used in the present invention is one or more selected from glycyrrhizic acid and its derivatives, glycyrrhizic acid and its derivatives, tranexamic acid and its derivatives, ascorbic acid and its derivatives.

Component (D) used in the present invention includes glycyrrhizic acid and its derivatives, glycyrrhizic acid and its derivatives, tranexamic acid and its derivatives, and ascorbic acid and its derivatives, which are commonly used in pharmaceuticals, quasi-drugs, and cosmetics. Any compound can be used without any particular limitation, and may be synthesized by a known method, or can be obtained as a commercial product. Examples of derivatives of component (D) used in the present invention include ester derivatives with fatty acids such as stearic acid, alkali metal salts such as sodium and potassium, and ether derivatives with monohydric or higher alcohols such as glucose and glycerin. is mentioned.

The content of component (D) used in the present invention is preferably 0.001 to 3.0%, more preferably 0.1 to 1.0% in the total composition.
If it is less than 0.001%, the texture-improving effect associated with the improvement of rough skin may not be sufficiently obtained.

The skin cosmetic of the present invention contains the above-described components as essential constituents, but the composition includes other components, such as anionic surfactants and amphoteric surfactants, as long as the objects of the present invention are not impaired. Active agents, nonionic surfactants, oils, polymer compounds, thickeners, powders (dyes, resins, pigments), preservatives, fragrances, moisturizers, bioactive ingredients, salts, solvents, antioxidants, Components such as chelating agents, pearlizing agents, neutralizers, pH adjusters, insect repellents, enzymes, etc. can be appropriately blended.

In addition, the skin cosmetic of the present invention can contain a physiologically active ingredient as appropriate within a range that does not impair the object of the present invention. A physiologically active substance is a substance that imparts some physiological activity to the skin when applied to the skin. Bactericidal agents, desiccants, cooling agents, warming agents, vitamins, amino acids, wound healing promoters, irritation reducing agents, analgesics, cell activators, enzyme components and the like.

The skin cosmetic of the present invention can be produced according to a conventional method. Moreover, the skin cosmetics of the present invention include basic cosmetics, makeup cosmetics, body cosmetics and the like. The dosage form can also be arbitrarily selected according to the purpose. That is, liquid, cream, gel, milky lotion, sheet, stick, aerosol, and the like can be mentioned. The skin cosmetics of the present invention are not limited to general cosmetics, but include quasi-drugs, designated quasi-drugs, topical drugs, and the like.

EXAMPLES Next, the present invention will be described in detail based on examples, but it is not limited thereto. Prior to Examples, test methods and evaluation methods employed in each Example will be described.

(1) Improving Texture Disturbance A texture improvement effect test was conducted on the face (part: cheek) of five evaluation panels. A continuous use test was conducted for 4 weeks, in which an appropriate amount of the skin cosmetic of the present invention was applied to either the left or right cheek and pure water was applied to the other cheek twice a day. The state of texture on the same site of the cheek before and after continuous use was observed with a microscope (manufactured by Keyence Corporation, VHX-1000), and changes in depth, size and isotropy of texture were visually measured. For the evaluation of the effect of improving the disordered texture, each of the two items of "width of sulcus cutis" and "height of unevenness of sulcus cutis/carpus" was scored according to the following 5-grade evaluation. Furthermore, the total score of the two items was calculated using the following formula, and evaluation was performed based on the following evaluation criteria. The results are shown in the table.
Texture disorder improvement effect (point) = (skin width evaluation reference point) + (cutaneous sulcus/cutaneous bump height evaluation reference)

<Evaluation criteria for the width of the sulcus cutis>
5 points: the width of the sulcus cutis narrowed 4 points: the width of the sulcus cutis slightly narrowed 3 points: the width of the sulcus cutis did not change 2 points: the width of the sulcus cutis slightly widened 1 point … the width of the sulcus cutis widened

<Evaluation criteria for the height of unevenness of cutaneous sulcus/carpus>
5 points: sulcus cutis/carcus cutis shallow, overall smooth 4 points: slightly shallow cutis cuta, cucumis cutis smooth overall 3 points: cutis cutis/carcus cutis 2 points where there is almost no change in the unevenness: the sulcus cutis/carcinus has slightly deep unevenness, and the overall unevenness is observed 1 point: the cuticular groove/cutaneous unevenness is deep, and the overall unevenness is clear Is recognized

(Evaluation criteria for texture disorder improvement effect test)
A: The average score of 5 panelists was 8 or more.
Good: The average score of 5 panelists was 6 or more and less than 8.
Δ: The average score of 5 panelists was 4 points or more and less than 6 points.
×: The average score of 5 panelists was less than 4 points.

(2) Moisturizing property A continuous use test was conducted for one week by applying an appropriate amount of the skin cosmetic composition of the present invention to one of the left and right cheeks of five panelists and pure water to the other cheek twice a day. Before and after prolonged use, the entire face was washed with lukewarm water, then after 20 minutes of acclimatization in an environment with a temperature of 25°C and a relative humidity of 50%, the moisture content of the stratum corneum on the cheek (skin conductance value) was measured using a Corneometer (MPA580). , manufactured by Courage+Khazaka). By using the skin conductance value, it is possible to examine the effects on the water absorption and water retention capacity of the stratum corneum. The moisturizing effect was evaluated by calculating the moisturizing effect (%) from the following formula, obtaining the average value of 5 people, and evaluating it based on the following criteria. The results are shown in the table.
Moisturizing effect (%) = (keratin moisture content after continuous use/keratin moisture content before continuous use) x 100

<Evaluation Criteria>
A: The moisturizing effect (%) was 120% or more.
◯: The moisturizing effect (%) was 110% or more and less than 120%.
Δ: The moisturizing effect (%) was 100% or more and less than 110%.
x: The moisturizing effect (%) was less than 100%.

(3) Skin Elasticity A sensory evaluation was carried out on the elasticity of the skin after continuous use of each skin cosmetic by a panel of five experts after continuous use of each skin cosmetic for one week. Evaluation criteria are as follows.

<Evaluation Criteria>
◎: Extremely good (4 or more people answered that their skin had improved elasticity compared to before long-term use)
○: Good (2 people answered that their skin had improved elasticity compared to before continuous use)
×: Poor (less than 1 person answered that their skin had improved elasticity compared to before continuous use)

(4) Smoothness of Skin A sensory evaluation was carried out on the smoothness of the skin after continuous use of each skin cosmetic by a panel of five experts after continuous use of each skin cosmetic for one week. Evaluation criteria are as follows.

<Evaluation Criteria>
◎: Very good (4 or more people answered that their skin was smoother than before continuous use)
○: Good (3 people answered that their skin was smoother than before continuous use)
△: Slightly bad (2 people answered that their skin was smoother than before continuous use)
×: Bad (less than 1 person answered that their skin was smoother than before continuous use)

(5) Absence of skin stickiness A sensory evaluation was carried out on the non-stickiness of the skin during and after use of each skin cosmetic by a panel of five specialists. Evaluation criteria are as follows.

<Evaluation Criteria>
◎: Very good (4 or more people answered that the skin did not feel sticky during and after use)
○: Good (3 people answered that the skin was not sticky during and after use)
△: Slightly bad (2 people answered that the skin was not sticky during and after use)
×: Poor (less than 1 person answered that the skin did not feel sticky during and after use)

(6) Stability over time Skin cosmetics were allowed to stand in an environment of 40° C. for 2 months, and changes in appearance were evaluated according to the following evaluation criteria.

<Evaluation Criteria>
○: Good Precipitation of compounded ingredients, generation of cages, and separation are not observed ×: Poor Precipitation of compounded ingredients, generation of cages, or separation is observed

Reference Examples 1-40 and Comparative Examples 1-8
Skin cosmetics having the compositions shown in Tables 1 to 4 were prepared according to a conventional method. Each test of non-stickiness and stability over time was carried out. The results are also shown in Tables 1 to 4.

As is clear from Tables 1 to 4, all of the skin cosmetics of Reference Examples 1 to 40 using the ingredients of the present invention exhibited excellent performance. On the other hand, the skin cosmetics of Comparative Examples 1 to 8 are inferior in any of improvement of texture disturbance, skin elasticity, moisturizing property, skin smoothness, non-stickiness of skin, and stability over time. The object of the present invention could not be achieved.

Hereinafter, other formulation examples of the skin cosmetic of the present invention will be given as examples. The skin cosmetics of these Examples were also examined for each item in terms of improvement of texture disorder, skin elasticity, moisturizing property, skin smoothness, and non-stickiness. , was good with excellent properties.

Reference Example 41 (lotion)
(1) Apple fruit extract 0.5%
(2) Ascorbic acid 0.5%
(3) Dipotassium glycyrrhizinate 0.2%
(4) Coix seed extract 0.3%
(5) Peony root extract 0.05% (6) Hydrolyzed conchiolin 0.5%
(7) Dipropylene glycol 2.0%
(8) Polyethylene glycol 1000 1.0%
(9) Glycerin 3.0%
(10) Maltitol 0.5%
(11) Sorbitol 0.5%
(12) Polyoxyethylene (60) Hydrogenated castor oil 0.2%
(13) Glycereth-26 0.2%
(14) Hydroxypropyl methylcellulose 0.1%
(15) Citric acid 0.05% (16) Sodium citrate 0.1%
(17) placenta extract 0.2%
(18) xanthan gum 0.05% (19) disodium edetate 0.01% (20) 2-ethylhexyl paramethoxycinnamate 0.2%
(21) Phenoxyethanol 0.2%
(22) Methylparaben 0.05% (23) Perfume 0.01% (24) Purified water remainder

(Manufacturing method) (6) to (13) and (20) to (23) are uniformly mixed, and (1) to (5), (14) to (19) and (24) are uniformly mixed. After adding and sufficiently stirring, a dispenser bottle container was filled to prepare a lotion.

Example 42 (sheet mask)
(1) Star fruit fruit extract 0.2%
(2) Bilberry leaf extract 0.2%
(3) tranexamic acid 1.0%
(4) Calendula officinalis flower extract 0.2%
(5) Yuzu fruit extract 0.2%
(6) Coix seed extract 0.2%
(7) Glyceryl glucoside 0.1%
(8) Dipropylene glycol 7.0%
(9) Polyethylene glycol 4000 1.0%
(10) Polyglycerin 1.0%
(11) Sorbitol 1.0%
(12) xanthan gum 0.1%
(13) Carboxyvinyl polymer 0.5%
(14) Alkyl-modified carboxyvinyl polymer 0.1%
(15) hyaluronic acid Na 0.3%
(16) Na polyacrylate 0.1%
(17) Trisodium hydroxyethylethylenediamine triacetate 0.1%
(18) Phenoxyethanol 0.3%
(19) purified water remainder

(Manufacturing method) Parts of (8) to (12), (17) to (18) and (19) are uniformly dispersed in a homomixer. Then, the remaining parts of (1) to (7), (13) to (16), and (19) are added and uniformly mixed, and then dispersed again with a homomixer and impregnated into a sheet to prepare a sheet mask. bottom.

Reference Example 43 (Emulsion)
(1) Star fruit leaf extract 0.5%
(2) Pomegranate flower extract 0.3%
(3) Coenzyme Q10 0.1%
(4) tranexamic acid 0.2%
(5) Coix seed extract 0.5%
(6) Yuzu fruit extract 0.3%
(7) sodium hyaluronate 0.1%
(8) Liquid paraffin 6.0%
(9) Lipophilic glyceryl monostearate 2.0%
(10) Vaseline 1.0%
(11) Methylpolysiloxane (100cs) 0.5%
(12) stearic acid 1.0%
(13) Cholesterol 1.0%
(14) Sorbitol 3.0%
(15) behenyl alcohol 0.5%
(16) Bentonite 0.5%
(17) N-stearoyl-L-sodium glutamate 0.3%
(18) Glycerin 5.0%
(19) 1,3-propanediol 1.0%
(20) Water-soluble collagen 0.3%
(21) Methylparaben 0.2%
(22) Phenoxyethanol 0.2%
(23) purified water remainder

(Manufacturing method) Heat (8) to (15) to about 80°C and stir to uniformly dissolve (solution A) Heat (16) to (23) to about 80°C and stir to uniformly dissolve. (Liquid B). Add B liquid to A liquid and disperse with a homomixer. After cooling, (1) to (7) were added at 30° C. and further dissolved uniformly, and then filled into a glass container to prepare a milky lotion.

Reference Example 44 (body milk)
(1) Bilberry fruit extract 0.5%
(2) Artichoke flower extract 0.3%
(3) Dipotassium glycyrrhizinate 0.1%
(4) tranexamic acid 0.2%
(5) Coix seed extract 0.5%
(6) Silk hydrolyzate 0.3%
(7) Ethanol 10.0%
(8) Polyoxyethylene (2) alkyl (12-15) phosphate 0.5%
(9) Polyoxyethylene (2) Oleyl ether 0.5%
(10) Liquid paraffin 2.0%
(11) Methylpolysiloxane (100cs) 2.0%
(12) Squalane 1.0%
(13) Cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol 0.5%
(14) Carboxyvinyl polymer 0.2%
(15) Potassium hydroxide 0.15% (16) Disodium edetate 0.05% (17) Perfume 0.1%
(18) Phenoxyethanol 0.2%
(19) purified water remainder

(Manufacturing method) (7) to (13) are uniformly dispersed, (14) to (19) are added to the uniformly dispersed mixture, and dispersed with a homomixer. Next, (1) to (6) were sequentially added, stirred, and filled into a tube container to prepare a body milk.

Reference Example 45 (beauty essence)
(1) Hydrogenated soy lecithin 1.0%
(2) Methylphenylpolysiloxane 1.0%
(3) Methylcyclopolysiloxane 1.0%
(4) Octyldodecyl myristate 1.0%
(5) Phytosterol 0.2%
(6) Star fruit fruit extract 0.5%
(7) Pomegranate fruit extract 0.3%
(8) Dipotassium glycyrrhizinate 0.1%
(9) Coix seed extract 0.5%
(10) Yuzu fruit extract 0.3%
(11) POE (60) hydrogenated castor oil 0.1%
(12) Ascorbic acid glucoside 2.0%
(13) Glycerin 5.0%
(14) Polyethylene glycol 1000 1.0%
(15) Sorbitol 3.0%
(16) Maltitol 3.0%
(17) Diisopropanolamine 0.05% (18) Potassium hydroxide 0.05% (19) Carboxyvinyl polymer 0.1%
(20) Alkyl-modified carboxyvinyl polymer 0.12% (21) Xanthan gum 0.05% (22) Disodium edetate 0.01% (23) Remainder of purified water

(Manufacturing method) (6) to (23) are uniformly dissolved at 80°C, (1) to (5) are uniformly dispersed at 80°C, added to the mixture, dispersed and cooled with a homomixer to prepare a beauty essence. bottom.

Reference Example 46 (Cream)
(1) Apple fruit extract 0.1%
(2) Star fruit leaf extract 0.05% (3) Bilberry leaf extract 0.05% (4) Coix seed extract 0.2%
(5) Cornflower flower/leaf/stem extract 0.2%
(6) isononyl isononanoate 5.0%
(7) Liquid paraffin 1.0%
(8) cetostearyl alcohol 1.0%
(9) Polyglyceryl monoisostearate 2.0%
(10) Beeswax 2.0%
(11) Phytosteryl oleate 0.5%
(12) Methylpolysiloxane (20cs) 0.3%
(13) Tri(caprylic/capric/myristate/stearate)glyceryl
1.0%
(14) Glyceryl monostearate 0.2%
(15) sodium stearoyl glutamate 0.3%
(16) Water-soluble collagen 0.5%
(17) Phenoxyethanol 0.5%
(18) HEDTA-3Na 0.2%
(19) 1,2-pentanediol 0.2%
(20) Dipropylene glycol 2.0%
(21) Tripropylene glycol 1.0%
(22) Glycerin 3.0%
(23) tranexamic acid 2.0%
(24) pure water remainder

(Manufacturing method) (6) to (8) and (10) to (14) were heated to 80°C and uniformly dissolved (solution A). (9), (15) and (18) to (24) were uniformly dissolved and then heated to 80° C. (solution B). Liquid A was added to liquid B, dispersed with a homomixer, and then cooled to room temperature. Next, (1) to (5), (16) and (17) were added and dispersed again with a homomixer to prepare a cream.

Claims (3)

A skin cosmetic for improving skin texture and elasticity, characterized by containing the following components (A) to (C).
(A) Star fruit extract (B) Coix seed extract (C) One or more selected from glycerin, dipropylene glycol, 1,3-butylene glycol, and 1,3-propanediol 2. The improvement of skin texture and elasticity according to claim 1, further comprising (D) one or more selected from glycyrrhizic acid and its derivatives, glycyrrhizic acid and its derivatives, tranexamic acids, ascorbic acid and its derivatives. skin cosmetics. The amount of the component (A) is 0.0001 to 1.0% in the total composition,
The amount of the component (B) is 0.0001 to 2.0% in the total composition,
The amount of the component (C) is 3.0 to 20.0% in the total composition,
3. The skin cosmetic for improving skin texture and elasticity according to claim 1 or 2.