JPH04346910A - Nail-beatifying agent - Google Patents

Abstract

PURPOSE:To provide a nail-beautifying agent capable of reducing damages such as the lowering of the luster of nails and the generation of the cracks of the nails caused by the employment of conventional nail-beautifying agents containing organic solvents and further capable of maintaining the health of the nail, by adding a dipentaerythritol fatty acid ester. CONSTITUTION:A nail-beautifying agent contains a dipentaerythritol fatty acid ester (especially preferably a 12-hydroxystearyl fatty acid ester) preferably in an amount of 0.1-2wt.% and, if necessary, a sterol extracted from pearl oysters preferably in an amount of 0.0001-3wt.%, supplies water and fats and oils for the nail, reduces the damages of the nail and does not damage the nail even when used for a long period. The addition of the sterol extracted from the pearl oysters permits to further heighten the effect.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention supplements the moisture and oil content of nails,
To provide a nail beauty product that reduces damage to the nails and does not damage the nails even when used for a long period of time.

0002

BACKGROUND OF THE INVENTION Since commonly used nail polishes use organic solvents, they have dehydrating and degreasing effects and tend to remove water and oil originally contained in nails. As a result, this can cause various types of damage to the nails, and if used repeatedly,
In some cases, the nails turned white and lost their luster, even though they were otherwise healthy.

[0003] For this reason, cholesteryl-12-hydroxystearate is blended into nail beauty products as in JP-A No. 1-143817, and bitane is blended into nail beauty products as in JP-A-2-235805. It is known that

0004

[Problem to be solved by the invention] It is an object of the present invention to provide a nail beauty product that can maintain healthy nails by alleviating various problems such as loss of luster and cracking of nails caused by the use of nail beauty products containing organic solvents. It is to provide.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present inventors conducted intensive research on many substances that can be used in cosmetics, and as a result, added dipentaerythritol fatty acid ester to nail polishes. The present invention has been completed based on the discovery that the problem can be solved by the following. Furthermore, it was found that the effect was further enhanced by adding sterol extracted from pearl oyster to dipentaerythritol fatty acid ester.

That is, the present invention provides (1) a nail beauty product containing a dipentaerythritol fatty acid ester;

(2) A nail beauty product containing dipentaerythritol fatty acid ester and sterol extracted from pearl oyster.

As the fatty acid for dipentaerythritol fatty acid ester, fatty acids such as 12-hydroxystearic acid, rosin acid, stearic acid, isostearic acid, and palmitic acid can be used, but 12-hydroxystearic acid is particularly preferred, and branched Fatty acids with chains are particularly effective. Also, there is no problem with esters of these mixed fatty acids.

[0009] The amount of dipentaerythritol fatty acid ester in the nail polish is preferably 0.01 to 8% by weight, preferably 0.1 to 2% by weight, and the amount of sterol extracted from pearl oyster is 0.01 to 8% by weight. 000001 to 5% by weight, preferably 0.0001 to 3% by weight. In addition, other raw materials for nail beauty products are not particularly limited, but depending on the blending amount, the type and amount of organic solvent may be limited.

[0010] There are various types of nail beauty products, and they can be used as base coats, nail colors, and their thinners.

[0011]

[Examples] The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited to these Examples in any way. It goes without saying that there is no problem in adding pigments as a nail beauty agent. Table 1 below shows the formulations of Examples 1 to 4 and Comparative Example 1.

0012

[Table 1]

Regarding Examples 1 to 4 and Comparative Example 1, 24 men and 16 women were divided into 4 groups, and after applying the Examples on one hand and the Comparative Example on the other hand every day for one month, they completed a questionnaire. I took it. The respondents were asked to answer the following evaluation criteria, and the total scores are shown in Table 2. Example 3 is much better Example 3 is much better Example 2 is slightly better 1 There is no difference
0 comparative example is slightly better
-1 Comparative example is much better
-2 Comparative example is much better -3

[Table 2] There were no cracks in the nails or the like in any of the Examples. In the comparative example, this occurred in 5 out of 40 people.

[0014]

[Effect of the invention] A nail beauty product containing a dipentaerythritol fatty acid ester or a nail beauty product containing both this dipentaerythritol fatty acid ester and a sterol extracted from pearl oyster can prevent whitening of nails and improve nail beauty. It has been revealed that it protects gloss from organic solvents, suppresses dehydration and degreasing effects, and greatly suppresses damage to nails.

Claims (2)

[Claims] [Claim 1] A nail beauty product containing dipentaerythritol fatty acid ester. [Claim 2] A nail beauty product containing dipentaerythritol fatty acid ester and sterol extracted from pearl oyster.