JP2001163723A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic maximally educing effectiveness of a pearl or a shell containing a nacre in addition to that of glycolic acid, improving effectiveness of firmness or bleaching of the skin, improving effects in an appearance when used to transparent or translucent cosmetics and further solving problems of precipitation, or the like, when used to transparent or translucent liquid cosmetics. SOLUTION: This cosmetic is obtained by formulating the pearl or the shell containing the nacre and the glycolic acid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is a cosmetic composition which makes the most of the effectiveness of a pearl or a shell containing a nacre. Also,
When this is used for transparent cosmetics, the external appearance is also improved.

[0002]

2. Description of the Related Art Pearls or shells containing nacres have already been used as raw materials for cosmetics, and their effectiveness has been widely recognized. Glucholic acid has also recently been used as a keratin softener and the like.

[0003]

Since pearls or shells containing nacres are insoluble, they do not dissolve even when incorporated in cosmetics. Therefore, even if incorporated, the amount of permeation into the skin is small. However, there is a disadvantage that the effect is reduced. In order to cope with this phenomenon, the powder is pulverized, but there is a limit. Further, when the powder is used as it is in a transparent liquid cosmetic, precipitation or aggregation occurs.

[0004]

Means for Solving the Problems As a result of diligent studies to solve the above-mentioned problems, the present inventors have found that it is most appropriate to mix them with glycolic acid to solve the problems. Was. It is naturally known that pearls and shells dissolve in acids, but this is only used at the raw material stage to utilize the protein pearl or nacre in concholin, which is different from the idea of the present invention. Things. Also, not all commonly used α-hydroxy acids can be applied to the present invention.
Glucocolic acid was the most suitable for dissolving pearls or shells containing nacres while retaining effectiveness. Of course, other α
It goes without saying that there is no problem in using a hydroxy acid in combination.

[0005] Dissolving pearls has a great effect of improving the effectiveness, but when used in transparent or translucent cosmetics, there is an advantage in appearance, and in liquid systems with low viscosity, sedimentation etc. occurs. A new effect of solving the above problem is also exhibited.

The pearls or shells containing nacres may be selected from freshwater and marine products such as pearl oysters, pearl mussels, black mussels, and mussels. These are powdered and used. The degree of the powder is not particularly limited, but since the stirring time when dissolving with glycolic acid changes, the smaller the particle size, the better in the economic range.

[0007] Glucholic acid is one of α-hydroxy acids and is already used in cosmetics. There is no problem if it is of a quality that can be used for commercially available cosmetics, and it is of course possible to use a mixture with other substances.

The ratio of nacre to glycolic acid is 0.5: 9
9.5 to 10:90 is preferable, and the total amount is preferably 0.5% to 10% in the preparation. If the content is 0.5% or less, the effectiveness is low, and even if 10% or more is blended, there is almost no merit. In addition, the pH of the preparation is desirably 3.0 to 5.5,
At pH 3.0 or lower, there is a problem of irritation, and at pH 5.5 or higher, dissolution may not be completely performed.

[0009] The production method is not particularly limited, and may be in accordance with the usual method for producing cosmetics. However, it is significant to mix and dissolve the pearl or shell containing nacre and glycolic acid in advance. In addition, the amount of glycolic acid and other components for adjusting pH are blended or the order of blending is adjusted so that the pH does not exceed 5.5 during the production.

[0010] Those defined above can be blended in various dosage forms. For example, lotions,
It can be in the form of emulsions, creams, ointments, packs, and bath preparations.

In order to formulate these cosmetic formulations,
Natural animal and vegetable oils and fats such as olive oil, mink oil, castor oil, palm oil, beef tallow, evening primrose oil, coconut oil, castor oil, cacao oil, macadamia nut oil and the like; waxes such as jojoba oil,
Beeswax, lanolin, carnauba wax, candelilla wax and the like; higher alcohols such as lauryl alcohol, stearyl alcohol, cetyl alcohol and oleyl alcohol; higher fatty acids such as lauric acid, palmitic acid, stearic acid, solid paraffin, squalane,
Vaseline, ceresin, microcrystalline wax and the like; synthetic ester oils such as butyl stearate, hexyl laurate, diisopropyl adipate, diisopropyl sebacate, octyl dodecyl myristate, isopropyl myristate, isopropyl palmitate isopropyl myristate, cetyl isooctanoate ,
Neopentyl glycol dicaprate; silicone derivatives such as silicone oils such as methyl silicone and methyl phenyl silicone

Examples of the surfactant include anionic surfactants such as alkyl sulfates, fatty acid salts, alkyl phosphates, phosphates and sulfates of polyoxyethylene alkyl ethers; nonionic surfactants such as Glycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, polyglycerin fatty acid ester, etc .; , Phosphatidylserine, phosphatidylglycerol, phosphatidylinositol and their lyso forms, as well as phosphatidic acid and its salts

Polyhydric alcohols such as ethylene glycol, diethylene glycol, triethylene glycol,
More polyethylene glycols, propylene glycol, dipropylene glycol, more polypropylene glycols, 1,3-butylene glycol,
Butylene glycols such as 1,4-butylene glycol, glycerin, diglycerin, and more polyglycerins, sorbitol, mannitol, xylitol,
Sugar alcohols such as maltitol, ethylene oxide (hereinafter abbreviated as EO) of glycerin, propylene oxide (hereinafter abbreviated as PO) adduct, sugar alcohol E
O, PO adducts, monosaccharides such as galactose, glucose and fructose and their EO, PO adducts, maltose,
Polysaccharides such as lactose and polyhydric alcohols such as EO and PO adducts

As drugs, tocopherol, tocopherol acetate, vitamin C, allantoin, placental extract, elastin, arbutin, collagen, triclosan, trichlorocarban, dipotassium glycyrrhizinate, methylparaben, butylparaben

The required preparation is obtained by combining these raw materials. Of course, the use of α-hydroxy acids such as citric acid, malic acid, tartaric acid and lactic acid other than glycolic acid is effective. Examples are described below, but the present invention is not limited by these Production Examples and Examples.

Example 1 Lotion parts by weight olive oil 0.5 polyoxyethylene (20E.O.) sorbitan monostearate 2.0 polyoxyethylene (60E.O.) hydrogenated castor oil 2.0 ethanol 10.0 1.0% sodium hyaluronate aqueous solution 1.0 1,3 butylene glycol 5.0 Pearl powder (finely ground pearl pearl) 0.1 glycolic acid 2.0 Purified water 77.4

(Example 2) Cream parts by weight A Squalane 20.0 Olive oil 2.0 Mink oil 1.0 Jojoba oil 5.0 Beeswax 5.0 Cetostearyl alcohol 2.0 Glycerin monostearate 1.0 Sorbitan monostea Rate 2.0 B Purified water 46.85 Polyoxyethylene (20E.O.) Sorbitan monostearate 2.0 Polyoxyethylene (60E.O.) Hydrogenated castor oil 1.0 Glycerin 5.0 1.0% Hyaluron Aqueous sodium acid solution 2.0 Finely pulverized pearl oyster shells 0.05 Glycolic acid 5.0 Methyl parahydroxybenzoate 0.1 A and B are each weighed, heated to 70 ° C, and gradually stirred into B while A is stirred. And then slowly agitate for 30 minutes.
Cooled to ° C.

(Usage test) The face of eight women was divided into left and right sides, and the lotion and cream of the example were set on one side, and the lotion and cream of the comparative example were set on the other side. After three months,
Evaluation was made on whitening, prevention of rough skin, improvement of skin luster, blemishes, and skin abrasion. In addition, 16 persons were divided into two groups and tested using the samples shown in Table 1 below.

A comparative example is shown below. Comparative Example 1 A product prepared in the same manner as in Example 1 except for glycolic acid from Example 1 Comparative Example 2 A product prepared in the same manner as in Example 2 except for glycolic acid from Example 2 Comparative Example 3 Except for the pearl powder from Example 1, except that it was prepared in the same manner as in Example 1. Comparative Example 4 Except for the finely ground pearl oyster shell from Example 2, except for Example 2,
Created in the same way as

The evaluation was performed according to the following evaluation criteria, and the results are summarized in Table 2 below. (Evaluation criteria) Example is very good 3 Example is considerably better 2 Example is slightly better 1 No difference 0 Comparative example is slightly better -1 Comparative example is much better − 2 Comparative example is much better -3

[0021]

[0022]

【Effects】 Cosmetics containing pearl or nacreous shells and glycolic acid have the best effect of cholesteric acid as well as pearls or nacreous shells. In addition, when used in transparent or translucent cosmetics, the effect on appearance is improved, and when used in transparent or translucent liquid cosmetics, problems such as precipitation are further solved.

Claims (1)

[Claims] 1. A cosmetic composition containing pearl or a shell containing nacre and glycolic acid.