JP2003238336A - Cosmetic composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic composition that gives cosmetic which is excellent in moisture retention, has a good effect of improving chapped skin, and especially has excellent usability, without having sticky feelings nor frictional feelings. <P>SOLUTION: This cosmetic composition contains one, two or more kinds of saccharides as a component (A), one, two or more kinds of betaines as a component (B), and one or more compound selected from 1,2-pentanediol, dipropylene glycol, and 1,3-butylene glycol as a component (C). The composition preferably contains a glucose as the component (A) and trimethylglycine as the component (B). <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hypoallergenic cosmetic composition which is excellent in moisturizing effect on the skin, highly effective in improving rough skin, has an excellent feeling of use without stickiness or squeaking, and has no skin irritation. Regarding

[0002]

2. Description of the Related Art It has been known to blend polyhydric alcohols, sugars, plant extracts and the like into cosmetics for the purpose of moisturizing the skin and improving the rough skin. However, when a large amount of a moisturizer is used, the moisturizing effect and the skin roughening effect are improved, but there is a problem in the feeling of use such as stickiness and squeaking. Techniques for solving these problems have been disclosed. For example, in Japanese Patent Laid-Open No. 9-95411, a low-molecular-weight betaine and trehalose and / or erythritol are contained so that the moisturizing effect is excellent, and the composition is not sticky and is excellent in usability. Is disclosed, and Japanese Patent Laid-Open No. 2000-
No. 44423 discloses a technique in which a polyhydric alcohol or saccharide and raffinose are blended to reduce the stickiness and to give the skin a smooth and moist feel after application.

However, since saccharides are easily assimilated by microorganisms especially in water-based cosmetics, it is an essential condition to incorporate chemical preservatives and a large amount of polyhydric alcohol in cosmetics containing saccharides. Such chemical preservatives include parabens, phenoxyethanol, benzoic acid and its salts,
Acids such as salicylic acid and its salts, dehydroacetic acid and its salts, sorbic acid and its salts, benzalkonium chloride, benzethonium chloride, quaternary ammoniums such as alkyltrimethylammonium chloride, alkylaminoethylglycine hydrochloride, stearylhydroxyethyl chloride Amphoteric surfactants such as betaine sodium are used. Therefore, there are problems such as skin irritation and stickiness, and a satisfactory product has not been obtained. In particular, glucose, which is a monosaccharide, is generally more easily assimilated by microorganisms than trehalose and erythritol, which are polysaccharides, so that it has less stickiness and is excellent in a moisturizing effect and a rough skin improving effect, but is conventionally blended in cosmetics. There were few things.

[0004]

DISCLOSURE OF THE INVENTION According to the present invention, by blending sugars, betaines, 1,2-pentanediol, dipropylene glycol and 1,3-butylene glycol, excellent moisturizing properties and an effect of improving rough skin are obtained. The purpose of the present invention is to obtain a hypoallergenic cosmetic composition which is expensive and has no stickiness or squeaky feeling and is particularly excellent in usability. Furthermore, it is an object of the present invention to obtain a cosmetic having excellent moisturizing properties, a rough skin improving effect, and an excellent feeling of use without stickiness or squeaking by using glucose as a saccharide and trimethylglycine as a betaine.

[0005]

That is, the present invention is as follows. One or more saccharides as component (A), one or more betaines as component (B), and 1,2-pentanediol, dipropylene glycol and 1,3-butylene as component (C). 1. A cosmetic composition comprising at least one selected from glycols. Wherein the component (A) is glucose,
2. The cosmetic composition according to 1. 3. The cosmetic composition according to 1, wherein the component (B) is trimethylglycine. 4. A cosmetic composition comprising glucose and trimethylglycine. 5. The cosmetic composition according to any one of 1 to 4, which has low irritation, and 6. Any of 1 to 5, characterized in that it does not contain phenoxyethanol, or its content is less than 0.2% by mass, or it does not contain ethanol, or its content is less than 5% by mass. The cosmetic composition according to 1.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION As the saccharides of the component (A) used in the cosmetic of the present invention, monosaccharides such as glucose, xylose and fructose, disaccharides such as brown sugar, saccharose, xylobiose, maltose and lactose, and multi-saccharides. Examples thereof include sugar alcohols such as Tol, xylitol, sorbitol, and mannitol; oligosaccharides such as fructooligosaccharides and galactooligosaccharides; and pullulan, sodium hyaluronate, polysaccharides such as sodium chondroitin sulfate, cellulose, dextran, chitin, and chitosans.

Of these, glucose is particularly preferably used in the present invention. Glucose has a molecular weight of 180.
2 Molecular formula: C ₆ H ₁₂ O ₆ Appearance is white crystals or crystalline powder. The substance can be used in cosmetic compositions as a moisturizing component. Glucose is a known substance that is abundant in ripe fruits in the plant kingdom and is present in all of leaves, stems, roots, flowers, and many are commercially available. It is also possible to purchase and use these. For example, a product called anhydrous crystalline glucose TDA-C is commercially available from Meito Sangyo. The amount of the sugar compounded is 0.01 to 20 in the cosmetic composition.
It is mass%, preferably 0.1 to 10 mass%. If the blending amount is less than 0.01% by mass, not only a moisturizing effect and a rough skin improving effect are not exhibited, but also a moisturizing feeling may not be felt. If it exceeds 20% by mass, stickiness occurs, which is not preferable.

The betaines of component (B) are N-amino acids.
Trialkyl-substituted compounds such as trimethylglycine, γ-butyrobetaine, homarin, trigonelline, β
-Alanine betaine, carnitine, atrinin, homoserine betaine, antopreurin, valine betaine, lysine betaine, ornithine betaine, alanine betaine, taurobetaine, stachydrin, betaine glutamate, phenylalanine betaine and the like. In the present invention, it is particularly preferable to use trimethylglycine.

Trimethylglycine used in the present invention is contained in a wide range of animals and plants, and is also contained in many plants such as sugar beet, shrimp, and crab. The amino group is trimethylated to form an inner salt. It is a zwitterionic moisturizer. It is a known substance obtained by extracting from molasses, which is a by-product of beet sugar, by chromatography, purifying and crystallizing it, and these can be purchased and used. For example, a product called Aminocoat is commercially available from Asahi Kasei. The content of betaine is 0.01 to 20% by mass, preferably 0.1 to 10% by mass. If the amount is less than 0.01% by mass, the effect of suppressing the stickiness of sugar and the moist feeling may not be obtained. Further, even if it exceeds 20% by mass, the effect corresponding to the amount cannot be obtained, which is not preferable.

1,2-Pentanediol used as the component (C) is a kind of divalent aliphatic alcohol and is a known substance, and is a component usually incorporated in cosmetics as a moisturizing agent. The compounding amount of 1,2-pentanediol was 0.
In general, 1 to 20% by mass is preferable, and 0.5 to 10% by mass is particularly preferable. If it is less than 0.1% by mass, the antibacterial effect may not be sufficient, and if it exceeds 20% by mass, it may cause stickiness or skin irritation, which is not preferable. Similarly, dipropylene glycol and 1,3-butylene glycol are components usually incorporated in cosmetics as moisturizers. The blending amount is 0.1-2
0% by weight is generally preferred and 0.5-10% by weight is particularly preferred. However, when used alone, it is 5
20% by weight is generally preferred, with 10-15% by weight being especially preferred. If it is less than 5% by mass, the antibacterial effect is not sufficient, and if it exceeds 20% by mass, it may cause stickiness or skin irritation, which is not preferable.

By blending sugars and betaines according to the present invention, it has excellent moisturizing properties and a high effect of improving rough skin, and
It is possible to obtain a cosmetic composition which is not sticky or squeaky and is particularly excellent in usability. In particular, cosmetics containing glucose and trimethylglycine have a very excellent feeling of use and a high effect of improving rough skin. In addition to sugar and betaine, 1,2-pentanediol, dipropylene glycol,
By blending 1,3-butylene glycol, a sufficient antibacterial property is obtained, and a hypoallergenic cosmetic product containing no preservative and having no skin irritation can be obtained. As the polyhydric alcohol, 1,2-pentanediol is particularly preferable.

In the cosmetics of the present invention, phenols, especially 2
-Even if phenoxyethanol or ethanol is not added, sufficient antibacterial properties can be obtained, and a cosmetic having an excellent feeling of use can be obtained. Such cosmetics are safe without irritation even when applied to so-called sensitive skin. The cosmetic of the present invention further does not contain phenoxyethanol,
Alternatively, it is characterized in that its content is less than 0.2% by mass, or it does not contain ethanol, or its content is less than 5% by mass. Furthermore, isopropylmethylphenol, paraoxybenzoic acid ester, phenols such as 2-phenoxyethanol, benzoic acid and salts thereof, salicylic acid and salts thereof, dehydroacetic acid and salts thereof, sorbic acid and salts thereof, which are used in cosmetics. Acid, benzalkonium chloride, benzethonium chloride, quaternary ammonium such as alkyltrimethylammonium chloride, alkylaminoethylglycine hydrochloride,
It is also possible to prepare a so-called antiseptic-free cosmetic for so-called sensitive skin, which does not contain an antiseptic such as an amphoteric surfactant such as sodium stearyl hydroxyethyl betaine chloride.

In the cosmetic composition of the present invention, in addition to the above-mentioned essential components, oil agents, powders, fluorine compounds, resins, surfactants, thickeners, antioxidants, chelating agents, and mediums commonly used in cosmetics. Ingredients such as a solvating agent and a pH adjusting agent can be appropriately used.

The cosmetic composition of the present invention can be widely applied to detergents and cosmetics, quasi drugs and the like. For example, a cleaning agent for cleaning the face, body and hair, lotions of skin cosmetics, emulsions, creams, packs,
It can be applied to gels, beauty essences and the like. Further, it can be applied to various dosage forms such as makeup base and foundation of makeup cosmetics. In particular, the effects of the invention can be remarkably obtained by applying it to lotions and beauty essences.

Hereinafter, the present invention will be described in detail with reference to examples. The usability test and antiseptic test were conducted as follows.

[Usability Test] Using 20 women as subjects, usability was evaluated for each item of stickiness, squeaky feeling, and moisturizing feeling. The evaluation of usability is based on the following criteria. Sum the average score of each item, and the total score is 10 points or more (○),
5 points or more and less than 10 points were judged as (Δ), and less than 5 points were judged as (x). Furthermore, at the start of use and after a use period of 30 days, the rough skin condition was visually evaluated, and whether or not improvement was observed was evaluated.

[Stickiness] 5 points: None 4 points: Not good 3 points: Normal 2 points: Somewhat 1 point: many

[Squeak] 5 points: None 4 points: Not good 3 points: Normal 2 points: Somewhat 1 point: many

[Moisture] 5 points: many 4 points: somewhat high 3 points: Normal 2 points: Not good 1 point: Not at all

[Preservative test] After 20 g of the sample was inoculated with the bacterial solution, the change in the number of bacteria was examined by the pour method. The results obtained were classified according to the following three-stage criteria. In addition, among the following classifications, those with ⊚ or ○ were judged to have passed. ⊚: A marked decrease in the number of bacteria is observed. ○: A decrease in the number of bacteria is seen.
X: Almost no decrease in the number of bacteria, or no decrease in the number of bacteria at all.

The lotions of Examples 1 to 3 and Comparative Examples 1 and 2 having the formulations shown in Table 1 were prepared in accordance with ordinary methods, and each evaluation and test were carried out. The test results are shown in Table 1.

[0022]

[Table 1]

The cosmetics of Examples 1 to 3 were all excellent in usability, and in half of the subjects in the usability test,
A rough skin improving effect was obtained. In addition, there was no problem with the antibacterial property required for cosmetics. The lotions of Comparative Examples 1 and 2 containing neither glucose nor betaine had no problem in antibacterial property, but had a problem in feeling in use. Comparative Example 1,
In the lotion of No. 2, no subject showed an effect of improving rough skin by the use test.

The lotions of Examples 1 and 2 were given twice a day to 15 female subjects (teens to 50s) with sensitive skin who were liable to have skin troubles due to changes in cosmetics, chemical substances and the external environment. (Morning / Evening) The skin irritation was evaluated after continuous use for 1 week. As a result of the test, the number of people who complained of skin irritation was 0. As a result, this cosmetic is hypoallergenic,
It can be seen that it is excellent in safety.

Examples 4 to 7 will be described below.

[0026] Example 4 Lotion% by mass       Purified water residue       1.3-Butylene glycol 7.0       1.2-Pentanediol 1.5       Glycerin 1.5       Betaine 0.5       Glucose 1.0       Parsley extract 0.1       Rosemary extract 0.3 [Production method] The above components were mixed and dissolved.

Example 5 Emulsion Mass% (A) Purified Water Residual 1.3-Butylene Glycol 6.0 1.2-Pentanediol 2.0 Carboxyvinyl Polymer 0.12 Glycerin 3.0 Betaine 3.0 Glucose 3. 0 (B) Jojoba oil 1.5 Squalane 1.5 Polyoxyethylene hydrogenated castor oil 1.0 (C) Parsley extract 0.1 Potassium hydroxide 0.05 [Production method] Water phase component belonging to A and oil belonging to B The phase components are melted by heating, the oil phase component is mixed with the aqueous phase component, and the mixture is emulsified by a milking machine. After cooling, the components belonging to C were mixed and obtained.

Example 6 Beauty Serum Mass% (A) Purified Water Residual 1.3-Butylene Glycol 6.0 1.2-Pentanediol 2.0 Betaine 2.0 Glucose 1.0 Glycerin 5.0 Carboxyvinyl Polymer 0 .15 (B) Potassium hydroxide 0.04 Sodium hyaluronate (1% aqueous solution) 0.5 [Production method] The components belonging to A were mixed and dissolved, and then the components belonging to B were mixed and obtained.

Example 7 Cream Mass% (A) Purified Water Residual Dipropylene Glycol 10.0 Carboxyvinyl Polymer 0.12 Glycerin 3.0 Betaine 3.0 Glucose 3.0 (B) Jojoba Oil 8.5 Squalane 10. 0 New oil type glyceryl monostearate 3.0 Sorbitan monostearate 1.5 Polyoxyethylene sorbitan monostearate (20 EO) 1.0 (C) Parsley extract 0.1 Potassium hydroxide 0.05 [Production method ] The water phase component belonging to A and the oil phase component belonging to B are respectively heated and dissolved, the oil phase component is mixed with the water phase component, and the mixture is emulsified by a milking machine. After cooling, the components belonging to C were mixed and obtained.

The lotions, milky lotions, beauty essences, and creams obtained in Examples 4 to 7 each had excellent moisturizing properties, a high effect of improving rough skin, and were excellent in usability without stickiness or squeaky feeling. These cosmetics had no problem in antibacterial property.

[0031]

EFFECTS OF THE INVENTION According to the present invention, there is provided a hypoallergenic cosmetic composition which is excellent in moisturizing property, highly effective in improving skin roughness, and is particularly excellent in usability without stickiness or squeaky feeling. Obtainable.

Continued front page    F-term (reference) 4C083 AA112 AB032 AC022 AC112                       AC121 AC122 AC402 AC422                       AC432 AC442 AC482 AC581                       AC711 AC712 AD041 AD092                       AD201 AD202 AD332 CC01                       CC04 CC05 DD27 DD31 EE06                       EE07 EE10

Claims (6)

[Claims] 1. A saccharide or one or more saccharides as the component (A), one or two or more betaines as the component (B), and 1,2-pentanediol, dipropylene glycol or the like as the component (C). A cosmetic composition comprising one or more selected from 1,3-butylene glycol. 2. The cosmetic composition according to claim 1, wherein the component (A) is glucose. 3. The cosmetic composition according to claim 1, wherein the component (B) is trimethylglycine. 4. A cosmetic composition comprising glucose and trimethylglycine. 5. The method according to claim 1, wherein the stimulation is low.
The cosmetic composition according to any one of to 4. 6. A phenoxyethanol-free, or content thereof is less than 0.2% by mass, or ethanol-free, or a content thereof is less than 5% by mass. Item 6. The cosmetic composition according to any one of Items 1 to 5.