In liquid products, silica can play a role in thickening and thixotropic properties, while in powdered products, it can improve fluidity and storage stability, thereby playing an anti caking role. Meanwhile, due to its high specific surface area, silica can also act as an adsorbent and carrier, capable of adsorbing gases, liquids, and solids.

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.