Polymethylsilsesquioxane

Functions
Opacifier
Emollient
Lubricator
Water-repellent
CAS Number(s)
68554-70-1
FDA UNII
59Z907ZB69

Polymethylsilsesquioxane is a spherical, fine-particle silicone resin exhibiting a very sharp particle size distribution. It provides excellent lubricity, slip and feel, and water repellency.

 Polymethylsilsesquioxane is a powder polymer used in skin care products, particularly color cosmetics.

Synonyms
Polymethylsilsesquioxane (4.5 Microns)