Oil-control sunscreen makeup primer and preparation method thereof

Abstract

The invention discloses an oil-control sunscreen makeup primer and a preparation method thereof. The makeup primer is prepared from the raw materials in parts by weight: 5-10 parts of N-octanoylated chitosan modified kaoline, 5-10 parts of core-shell structure sunscreen particles, 10-15 parts of glycerin, 5-8 parts of squalane, 3-5 parts of isononyl isonanoate, 1-3 parts of hyaluronic acid, 0.5-1part of capryloyl glycine, 0.5-1 part of tocopherol, 0.1-0.5 part of ascorbic acid, and 50-70 parts of water. The core of the core-shell structure sunscreen particles is titanium dioxide and the shelllayer thereof is Al-doped lanthanum ferrite layer. According to the scheme, the kaoline is modified by N-octanoylated chitosan surfactant to improve the oil-absorbing effect of the kaoline and meanwhile improve the dispersion stability of the kaoline and the sunscreen particles. Therefore, the makeup primer has good oil-control and sunscreen effects while the texture is light and thin and the skin touch is refreshing. In the meantime, the shell layer of the core-shell structure sunscreen particles is green and has the effects of toner, so the effect of even skin color can be achieved.

Description

Technical field [0001] The invention relates to the field of cosmetics, in particular to an oil-control sunscreen makeup pre-cream and a preparation method thereof. Background technique [0002] Primer is a beauty and skin care product used after basic skin care and before make-up. It is used to isolate skin and make-up. It prevents chemical components in make-up from directly contacting the skin and deteriorates skin condition. It is a protective screen between skin and make-up. Pre-makeup milk generally also has functions such as oil control and sun protection to prevent excessive oil secretion from affecting the makeup effect, make the makeup more compliant and clean, extend the makeup holding effect, and protect the skin from UV damage. [0003] The pre-makeup cream in the prior art generally achieves the oil control effect by adding kaolin and other components that can absorb oil, but the oil absorption effect of kaolin is limited, the added amount is small, the oil control ef...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the limited oil-absorbing effect of kaolin in the sunscreen primer in the prior art, and the oil control effect is poor if the amount added is small, which affects the makeup effect and makeup retention; too much added amount will cause the primer together with sunscreen particles The texture is heavy, greasy and difficult to push away, and the skin is stuffy and airtight after application, which increases the burden on the skin. An oil-controlling sunscreen primer and its preparation method are provided. N-octanoyl chitosan surfactant is used to treat kaolin Modification improves the oil-absorbing effect of kaolin and improves the dispersion stability of kaolin and sunscreen particles, so that the primer has good oil control and sunscreen effects, and at the same time has a light texture and a refreshing skin feel, which reduces the burden on the skin and improves the comfort of use

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