JP2008120730A - Gel cosmetic - Google Patents

Abstract

[Problem] To provide a cosmetic that is easy to apply and excellent in skin care effect and slimming effect.
The following components (A), (B), (C), (D) and (E):
(A) a polymer thickener,
(B) a nonionic surfactant,
(C) a humectant,
(D) Yellow flower vegetables or an extract thereof,
(E) Gel cosmetics containing water.
[Selection figure] None

Description

  The present invention relates to a gel cosmetic that is excellent in skin care effect and slimming effect.

  Obesity is a result of excessive intake energy relative to energy consumed, which accumulates as neutral fat in white fat cells. Obesity with a large accumulation of visceral fat has been pointed out to be related to pathological conditions such as insulin resistance and arteriosclerosis, and obesity with a large accumulation of subcutaneous fat is large regardless of gender from the viewpoint of beauty. It is a problem.

Conventionally, in order to reduce excess fat on the face and body and maintain a firm body, in addition to various exercises and dietary restrictions, cosmetics such as massage gels and creams that promote metabolism in the body have been used. . For such cosmetics, caffeine, a plant extract having a lipolysis-promoting action (Patent Document 1), and the like are used for the purpose of promoting the decomposition of fat and obtaining a slimming effect.
However, none of them has a sufficient effect, and a cosmetic having a more slimming effect has been desired.

In addition, since such cosmetics are applied and used over a wide range of the body, there is no need for dripping or the like, easy to take in the hands, easy to apply to the skin, and easy to massage.
Japanese Patent Laid-Open No. 2005-60366

  An object of the present invention is to provide a gel cosmetic that is easy to apply and excellent in skin care effect and slimming effect.

  The present inventors use a polymer thickener, a nonionic surfactant, and a moisturizer in combination with a specific plant or an extract thereof, thereby making it easy to apply and having excellent skin care and slimming effects. The present invention has been completed by finding that a cosmetic can be obtained.

The present invention includes the following components (A), (B), (C), (D) and (E):
(A) a polymer thickener,
(B) a nonionic surfactant,
(C) a humectant,
(D) Yellow flower vegetables or an extract thereof,
(E) A gel cosmetic containing water is provided.

  The gel cosmetic of the present invention has good spread, is easy to apply to the skin, and is excellent in skin care effect and slimming effect.

As the polymer thickener of component (A) used in the present invention, vinyl polymers, cellulose polymers and the like are preferable.
Examples of the vinyl polymer include carboxyvinyl polymer, alkyl acrylate copolymer, acrylic acid / alkyl methacrylate copolymer, polyacrylic acid, polyvinyl alcohol, polyvinyl pyrrolidone, and salts thereof.

  Among these, as the acrylic acid-based (co) polymer, for example, carbopol (Noveon), synthalene (3Vsigma), PEMULEN (Noveon) and the like can be used.

  Examples of the cellulose polymer include methyl cellulose, hydroxyethyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl cellulose sodium, methyl hydroxypropyl cellulose, and the like.

  As the polymer thickener of component (A), one or more kinds can be used, and it is 0.1-2% by mass, particularly 0.2-1% by mass in the total composition. Is preferable from the viewpoint of maintaining shape retention while being good.

The nonionic surfactant of the component (B) used in the present invention is not particularly limited as long as it is used in ordinary cosmetics. For example, polyoxyethylene alkyl ethers, polyoxyethylene hydrogenated castor oils, Polyoxyethylene sorbitan fatty acid esters, sorbitan fatty acid esters, polyethylene glycol fatty acid esters, polyoxyethylene sorbit fatty acid esters, polyglycerin fatty acid esters, alkyl glycerin ethers, glycerin fatty acid esters, polyoxyethylene cholesteryl ethers, Examples include alkylpolyglucosides, sucrose fatty acid esters, amine oxides and the like.
Of these, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid esters, and polyglycerin fatty acid esters are preferred.

  One or more nonionic surfactants of component (B) can be used, and 0.1 to 10% by mass, particularly 0.2 to 5% by mass in the total composition is applied to the skin. This is preferable because both the property and the skin care effect are excellent.

As the humectant for component (C), polyhydric alcohols and oils are preferred.
Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, 1,3-butylene glycol, diethylene glycol, dipropylene glycol, triethylene glycol, hexylene glycol, polyethylene glycol, ethoxydiglycol, and glycerin.
Of these, propylene glycol, 1,3-butylene glycol, dipropylene glycol, polyethylene glycol (molecular weight: 200 to 1,000,000), ethoxydiglycol, and glycerin are particularly preferable from the viewpoint of usability.

The oil agent is not particularly limited as long as it is used in normal cosmetics. For example, hydrocarbon oils, animal and vegetable oils, ester oils, higher fatty acids, higher alcohols, silicone oils, phospholipids, sphingosine derivatives and the like. Can be mentioned.
Of these, hydrocarbon oils such as liquid paraffin and squalane; silicone oils such as dimethylpolysiloxane are preferred.

  One or more humectants of the component (C) can be used, and 0.5 to 20% by mass, particularly 5 to 10% by mass in the total composition is excellent in skin care effect but has a sticky feeling. This is preferable because a feeling of use is small.

  Ingredients (D) yellow rape are Helicocarpus licorice (Hemerocallis plicata Stepf (Chugakudai Dictionary, edited by Shanghai Science and Technology Publishers and Shogakukan, Volume 1, Shogakukan Co., Ltd., 1985, p114)), Honkanzo (Hemerocallis fulva L. (Chokuyaku Daiten Dictionary, edited by Shanghai Science and Technology Publishers and Shogakukan, Volume 1, Shogakukan Co., Ltd., 1985, p378)), Yabukanzo (Hemerocalis fulva L. Technical Publishing Company and Shogakukan, Vol. 1, Shogakukan Co., Ltd., 1985, p381, p539)), Hemeralis flava L. (Chokuyaku Daiten Dictionary, Shanghai Science and Technology Publishing Company and Shogakukan, Vol. 1) , Shogakukan Co., Ltd., 1985, p378, p539 )), Hemerocallis minor Mill. (Chukayaku Dictionary, edited by Shanghai Science and Technology Publishers and Shogakukan, Volume 1, Shogakukan Co., Ltd., 1985, p378, p539)) and related plants A generic term for plant flowers and buds.

  In the present invention, “yellow flower vegetables” includes all of these series of plants. It is preferable to use the yellow rape vegetables that are distributed in the market as they are or dried (also known as gold needle vegetables). In addition, drying can apply the method normally used for drying of a plant, for example, any of a sun, a wind, a heating, or freeze-drying may be sufficient.

  As the yellow flower vegetable extract used in the present invention, the above-mentioned "yellow flower vegetable" is extracted at room temperature or under heating, and a solvent extract obtained by preparing it, a diluted solution thereof, a concentrated solution thereof or a dried product thereof. Can be mentioned.

  In the present invention, examples of the method for extracting yellow flower vegetables extract include immersion, decoction, leaching, reflux extraction, supercritical extraction, ultrasonic extraction, and microwave extraction.

  As the extraction solvent used for extracting the yellow flower vegetable extract, either a polar solvent or a nonpolar solvent can be used, and these can be used in combination.

  Examples of polar solvents include water, alcohols and ketones; examples of nonpolar solvents include esters, chain and cyclic ethers, polyethers, hydrocarbons, aromatic hydrocarbons, pyridines, Examples include critical carbon dioxide, fats and oils, waxes, and other oils.

  Examples of alcohols include methanol, ethanol, propanol, butanol, propylene glycol, butylene glycol and the like. Examples of ketones include acetone and methyl ethyl ketone. Examples of the esters include methyl acetate and ethyl acetate. Examples of chain and cyclic ethers include tetrahydrofuran and diethyl ether. Examples of polyethers include polyethylene glycol. Examples of hydrocarbons include hexane, cyclohexane, petroleum ether, and the like. Examples of aromatic hydrocarbons include benzene and toluene.

  Among these, it is preferable to use water or an alcohol alone or a water-alcohol mixture, more preferably a water-alcohol mixture, and particularly preferably a water-methanol or water-ethanol mixture. In the case of a water-alcohol mixture, the mixing ratio (V / V) of alcohol to the mixture is preferably 0 to 80%, more preferably 0 to 60%.

  Although the usage-amount of an extraction solvent changes also with the kind of solvent, Preferably it is 1-100 mass parts with respect to 1 mass part of dried yellow vegetables, More preferably, it is 5-20 mass parts.

  Moreover, extraction temperature is 5-70 degreeC, Preferably it is 5-50 degreeC, More preferably, it is 10-40 degreeC. The extraction time is 1 hour to 30 days, preferably 7 to 14 days.

  The yellow rape extract can be used after extraction / preparation as a liquid or diluted, but the extract liquid is concentrated under reduced pressure, freeze concentrated or membrane concentrated, wind, heated or lyophilized, concentrated, It may be prepared and used in a paste or dry product (powder).

  Moreover, it is preferable to use what the inactive impurities removed from the said yellow flower vegetable extract by well-known techniques, such as liquid-liquid distribution, solid-liquid distribution, a filtration membrane, activated carbon, adsorption resin, an ion exchange resin. Furthermore, you may use, after performing processes, such as a deodorizing and a decoloring, as needed.

  Component (D) yellow rape or extract thereof is preferably contained in the total composition in an amount of 0.005 to 5 mass%, particularly 0.05 to 2 mass% in terms of dry matter.

  The water of component (E) plays an important role not only as a carrier agent for a water-soluble active ingredient but also for the feeling of use, applicability, and product stability. In this invention, it is preferable to contain water normally 63-99 mass% in the whole composition, especially 82-95 mass%.

  The gel cosmetic of the present invention can further contain (F) caffeine or a salt thereof, and can further enhance the skin care effect and the slimming effect.

  As caffeine or a salt thereof, a commercially available one may be used, but it is extracted from a plant having a high caffeine content such as coffee beans, green tea leaves, oolong tea, black tea and mate tea by the above or a known extraction method, It may be a plant extract or a synthetic product obtained by preparation. Moreover, you may use the said plant or its extract as a caffeine supply source. The caffeine may be a dry product, a liquid or a paste.

  Examples of caffeine salts include mineral acid salts such as hydrochloric acid and sulfuric acid, and organic acid salts such as acetic acid and citric acid.

  Component (F) caffeine or a salt thereof is contained in the total composition in an amount of 0.01 to 0.5% by mass, particularly 0.05 to 0.2% by mass, while maintaining the effects of the invention. It is preferable because it is superior in stability.

The gel cosmetic of the present invention can further contain (G) menthol, and can feel more squeezed.
Menthol is preferably contained in the whole composition in an amount of 0.005 to 1% by mass from the viewpoint that a feeling of squeezing can be felt, and in particular, 0.05 to 0.3% by mass of menthol is squeezed and refreshing. It is preferable because it is more excellent in stability.

  The gel cosmetics of the present invention are components other than the above-mentioned components used in ordinary cosmetics, such as preservatives, ultraviolet absorbers, antioxidants, sequestering agents, dyes, inorganic pigments, and polymer powders. , Perfume and the like.

  The gel cosmetic of the present invention can be produced by a usual method, and the viscosity at 25 ° C. is 5000 to 80000 mPa · s, which is excellent in easiness of spreading and stability at the time of application, particularly 10,000 to 50000 mPa. S is preferred because there is no dripping at the time of coating, it is easy to spread over a wide range, and is excellent in stability. The viscosity is measured with a helical viscometer (B8R type) at 25 ° C.

Production Example 1 (Manufacture of yellow flower vegetable extract)
400 g of 50% (v / v) ethanol-water mixed solution was added to 40 g of yellow flower vegetables (Shinwa Bussan Co., Ltd.), extracted for 7 days at room temperature (20-30 ° C.), and then filtered to obtain 340 mL of an extract. The solvent was distilled off from this extract under reduced pressure to obtain 18.4 g of a dried product.

Examples 1-10, Comparative Examples 1-9
Gel-like cosmetics having the compositions shown in Tables 1 and 2 were produced, and the applicability to the skin, the skin care effect and the skin tightening effect were evaluated. The results are shown in Table 1 and Table 2 together. In addition, the commercially available caffeine (Wako Pure Chemical Industries Ltd.) was used.

(Production method)
After dispersing the polymer thickener in purified water, add the polyhydric alcohol and yellow rape extract and stir well. Subsequently, if it contains squalane, it is added. Furthermore, other additive components including a neutralizing agent or a fragrance were sequentially added and stirred so as to be sufficiently uniformly dispersed or dissolved to obtain a gel cosmetic.

(Evaluation methods)
(1) Applicability to skin:
Three specialized panels evaluated the dripping and ease of massage when applying a certain amount to the inside of the forearm for each gel-like cosmetic, and made the following five steps. The results are shown as average values.
5: Very good.
4: Good.
3: Neither can be said.
2: Slightly bad.
1: Bad.

(2) Skin care effect:
Gel cosmetics 0.2 g is uniformly applied in a 3 cm diameter circle on the inner side of the forearm, washed with water and dried 1 hour after application. The skin conductance after washing and drying was measured with a Corneometer CM825PC (COLOGNE). From the amount of change from the skin conductance before the treatment (Δ skin conductance), the skin care effect was evaluated according to the following criteria. The larger this value, the better the skin care effect.
4: The skin conductance value is extremely increased (Δ skin conductance ≧ 15).
3: Increased skin conductance value (15> Δ skin conductance ≧ 5).
2: Skin conductance value slightly increased (5> Δ skin conductance ≧ 2).
1: Skin conductance value does not change (2> Δ skin conductance).

(3) Skin tightening effect:
A professional panel of 5 persons evaluated the squeezing effect when each gel-like cosmetic was applied to the calf for 1 month, and evaluated it in the following 4 stages. The results are shown as average values.
4: A strong effect is strongly felt.
3: Feels the squeezing effect.
2: Feels a slight effect.
1: There was no squeezing effect.

Example 11
A gel cosmetic composition having the following composition was produced. About the obtained gel-like cosmetics, it carried out similarly to Examples 1-10, and evaluated the applicability | paintability to skin, the skin care effect, and the skin tightening effect. As a result, the application property to the skin was 4.7, the skin care effect was 4, and the skin tightening effect was 3.6.

(composition)
(1) Acrylic acid / alkyl methacrylate copolymer (Pemlen TR1, manufactured by Noveon) 1.0 (mass%)
(2) L-arginine 0.3
(3) Glycerin 5.0
(4) Cross-linked methylpolysiloxane (KSG15, manufactured by Shin-Etsu Silicone) 2.0
(5) Polyoxyethylene hydrogenated castor oil (Emanon CH60, manufactured by Kao Corporation) 0.5
(6) Ethanol 5.0
(7) Menthol 0.3
(8) Yellow Flower Vegetable Extract (Production Example 1) 0.5
(9) Caffeine 0.2
(10) Methylparaben 0.2
(11) Purified water balance (12) Perfume appropriate amount

(Production method)
After component (1) is dispersed in component (11), components (3), (5), (8) and (9) are added and stirred thoroughly. Further, component (4) is added, components (7) and (10) dissolved in component (6) are added, mixed uniformly, and then component (2) dissolved in an appropriate amount of water is added. . Finally, component (12) was added and mixed uniformly to obtain a gel cosmetic.

Claims (3)

The following components (A), (B), (C), (D) and (E):
(A) a polymer thickener,
(B) a nonionic surfactant,
(C) a humectant,
(D) Yellow flower vegetables or an extract thereof,
(E) Gel cosmetics containing water.   The gel cosmetic according to claim 1, further comprising (F) caffeine or a salt thereof.   Furthermore, the gel cosmetics of Claim 1 or 2 containing (G) menthol.