Polymethyl …
INCI: POLYMETHYL/OCTYL/PHENYL/PROPYLSILSESQUIOXANE DIMETHICONE CROSSPOLYMER
Reviewed by Emma · Last updated 18 Aug 2026
What Is Polymethyl …?
Polymethyl/Octyl/Phenyl/Propylsilsesquioxane Dimethicone Crosspolymer is the crosslinked copolymer formed by the reaction of dimethyldimethoxysilane, propyltrimethoxysilane, octyltrimethoxysilane, methyltrimethoxysilane and phenyltrimethoxysilane.
Its declared cosmetic functions are film forming and skin conditioning.
Source: European Commission CosIng inventory.
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