Silicon dioxide is widely used in various personal care products, such as skincare products, sunscreen, makeup, antiperspirants, hair care products, shower gel, facial cleansers, etc. The particle shape of ordinary silica is spherical or nearly spherical, and the particle size is usually 1-100 micrometers. It will scatter and refract light under illumination, with limited reflectivity and covering power.

The spherical, small particle size, and porous properties of silica make it an anti caking agent and thickener in the cosmetics field, which can improve storage stability and dispersion of powdered products, and is widely used.