Cosmetic silica is a type of processed silica with unique forms and properties. Its particle morphology is an irregular polyhedron or fiber like shape, with particle sizes mostly ranging from 0.1 to 10 microns. This form of silica has higher reflectivity and covering power. In the field of cosmetics and other fields, cosmetic silica is used as an efficient optical whitening agent and covering agent, which can effectively improve the color and texture of products.

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.