Trimethylpentyl Polysilsesquioxane is a resinous material composed of a mixture of three-dimensional siloxane polymers and oligomers with cage structures. For the oligomers, each silicon atom in the polysilsesquioxane is connected via oxygen atoms to three other silicon atoms and can be represented by the empirical formulation RSiO3/2 where R represents the trimethylpentyl group. For the larger polymeric polysilsesquioxanes, some of the silicon atoms are not connected to other silicon atoms and
CAS #
190732-67-3, 444619-08-3
Form
Liquid
See origin →
Functions
Nail Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
UV Protection
Strengthens nails
Traditional Use
A modern synthetic silicone-derived polymer developed for cosmetics to provide a lightweight, non-greasy feel. Creates a silky texture and improves product spreadability in makeup and skincare.