Silicon Dioxide

Silicon Dioxide (fumed silica) is an ultra-fine, amorphous form of silica produced through high-temperature vapor-phase hydrolysis of silicon tetrachloride. Its extremely high surface area (200-400 m²/g) and unique three-dimensional network structure make it exceptionally effective at absorbing moisture and oils, preventing powder clumping, and creating silky textures in cosmetics. Formulators favor fumed silica over precipitated forms for its superior oil absorption capacity, mattifying properties in color cosmetics, and ability to stabilize emulsions while imparting a luxurious, velvety skin feel.