What it is
Polymethylsilsesquioxane/silica crosspolymer is a hybrid powder that combines a crosslinked methyl silicone resin with silica. In formulas it provides a smooth, silky slip, helps absorb excess oil for a matte finish, and blurs the look of pores and fine lines through a soft-focus optical effect. It also improves spreadability and the overall sensory feel of sunscreens and makeup.
Safety & warnings
Silicone and silica powders of this type are inert and generally well tolerated, with low irritation and low comedogenic potential.
Origin & sourcing
A synthetic material made by crosslinking polymethylsilsesquioxane silicone resin with silica.
Questions everyone asks
What texture benefit does this powder give?
It adds silky slip, helps mattify by absorbing oil, and softens the look of pores and lines for a smoother appearance.
Is it a silicone?
It is a hybrid of a crosslinked methyl silicone resin and silica, supplied as a fine powder.