JP2712126B2 - Moisturizer for make-up cosmetics of powder compound type - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a powdered makeup cosmetic (hereinafter, simply referred to as a “cosmetic”) that prevents skin roughness, gives a moist feeling, and prevents makeup loss. Humectant for obtaining "make-up cosmetics").

[Conventional technology]

Makeup cosmetics are cosmetics in which a large amount of powder is added to a cosmetic base. Therefore, when this cosmetic is applied to the skin, it may deprive the skin of moisture, roughen the skin, and lose makeup.

Therefore, in order to prevent such undesired properties of the makeup cosmetics on the skin, moisturizing components such as oils and polyhydric alcohols have been blended.

[Problems to be solved by the invention]

In the above-mentioned conventional makeup cosmetics in which the skin is not roughened, those in which oil and a polyhydric alcohol are blended in the cosmetic base easily give the skin glare and cause makeup loss. Also, the blending of the polyhydric alcohol is not preferable because it gives a sticky feeling.

SUMMARY OF THE INVENTION An object of the present invention is to provide a moisturizer for makeup cosmetics that prevents the skin from sticking and gives a moist feeling.

[Means for solving the problem]

The present invention is a moisturizing agent for make-up cosmetics of a powder blending type containing kojic acid as an active ingredient.

Kojic acid, which is an active ingredient of the humectant of the present invention, is a known substance obtained by culturing bacteria belonging to the genera Aspergillus, Penicillium, Escalikia, Acetobacter, and Gluconobacter.

In addition, since this substance has a melanin production inhibitory action, fair skin cosmetics containing this substance as an active ingredient are known.
Further, the present substance is extremely low toxicity, mice, LD ₅₀ Acute toxicity oral, intraperitoneal administration in rats of about 2.5 to 3.5
g / kg, no primary irritation and no cumulative irritation to the skin,
It is a safe substance with no allergic reactions.

The amount of kojic acid to be added to the makeup cosmetic is 0.01 to 5.0% by weight based on the total amount of the makeup cosmetic, preferably
0.1-2.0% weight.

The dosage form of the makeup cosmetic compounded with the humectant of the present invention is a powder compound type in powder form such as powder, foundation, eyeshadow, powder press such as cheek shadow, etc.
Powders such as foundations; oil plates; powders such as lip steps; oil sticks; powders such as emulsion foundations; and emulsions.

The moisturizer containing kojic acid of the present invention as an active ingredient is blended with a predetermined amount in a powder-type makeup cosmetic base, and by a method for producing the same cosmetic, to prevent rough skin, It can be a makeup cosmetic that gives a moist feeling. In this case, as the powder, talc, mica,
Titanium, kaolin, zinc white, sericite, silica resin powder, extender pigments such as nylon powder and polyethylene powder, pigments such as titanium oxide, iron oxide, ultramarine, navy blue, organic pigments, etc. Is used.

The makeup cosmetics containing the humectant of the present invention prevent the skin from sticking, give a moist feeling, prevent the makeup from being discolored, and have the original fairness effect of kojic acid when used in foundations and the like.

Next, examples of the present invention and examples of an effect test for giving the skin a moist feeling will be described.

[Example] Example 1 (oil-based foundation) 1.3 g of candelilla wax, 1.2 g of carnauba wax, 0.5 g of diglyceryl oleate, and 5.0 g of glyceryl trioctanoate
g, cetyl octanoate 41.0 g and natural vitamin E 0.1 g were heated and dissolved, and kojic acid 1.0 g and nylon powder were added to this solution.
10.0 g, a trace of red No. 202, a trace of blue No. 1 aluminum lake and 59.9 g of crosslinked polystyrene powder are added, and the mixture is made uniform and defoamed. This is poured into a metal plate, molded and filled into a container to obtain a product.

Example 2 (press-type foundation) 5.0 g of silicic anhydride, 10.0 g of polymethyl methacrylate, 15.0 g of methylpolysiloxane, 0.2 g of Blue No. 404, 0.1 g of ethyl valaoxybenzoate, 0.1 g of jojoba oil, 0.1 g of lactic acid, 0.1 g of urocaninate 0.1 g, kojic acid 1.0 g and nylon powder are added to make a total amount of 100 g. This is uniformly mixed, dispersed, and pulverized, and a given amount is stamped on a middle plate to obtain a product.

Example 3 (Teak shadow) 0.1 g of ethyl paraoxybenzoate, 4.0 g of methylpolysiloxane, 2.0 g of glyceryl isostearate, jojoba oil
2.0 g, cetyl octanoate 2.0 g, natural vitamin E 0.1 g, nylon powder 15.0 g, red No. 226 2.0 g, yellow 205 No. 2.0
g, 1.0 g of kojic acid, add cross-linked polystyrene powder to make the total amount 100
g, and then uniformly mixed, dispersed, and pulverized, and then used as a punch to obtain a product.

Test examples (skin feel, makeup loss test) 1) Test sample Press-type foundation of Example 2 2) Test method When 10 adults are used as panelists, the test sample is applied and the test sample is applied. The cases where no control (control) was performed were evaluated for the degree of feel of the skin of each paneler and the makeup loss.

3) Test results The test results were as shown in Table 1 below.

As is clear from the above results, the makeup cosmetics containing the humectant of the present invention are excellent in moist skin feeling,
It does not cause makeup loss.

[Effects of the Invention] According to the present invention, by blending it into a powdered makeup cosmetic, the skin becomes less sticky, the moist feeling is enhanced, and the makeup does not lose its shape. A moisturizer containing kojic acid as an active ingredient for obtaining an excellent makeup cosmetic is provided.

Claims (1)

(57) [Claims] 1. A moisturizer for makeup cosmetics of a powdered type, comprising kojic acid as an active ingredient.