What it is
Dimethicone/Phenyl Vinyl Dimethicone Crosspolymer is a silicone elastomer formed by crosslinking dimethicone and phenyl-substituted siloxane units into a swellable network. In formulas it is typically dispersed as a gel or powder to thicken, stabilize, and impart a dry, silky, cushiony skin feel while helping blur the appearance of pores and fine texture. It is common in sunscreens and base makeup where an elegant slip and a soft-focus finish are desired.
Safety & warnings
Silicone elastomers of this type are generally regarded as well tolerated, non-irritating, and non-sensitizing in cosmetic use. They are not fragrance allergens. Crosslinked silicone elastomers are large, inert networks and are not associated with clogging pores at normal use levels.
Origin & sourcing
Synthetic; manufactured by crosslinking silicone (siloxane) polymers, including phenyl-modified segments, into an elastomeric network.
Questions everyone asks
Why is this silicone used in sunscreens?
It thickens the formula and provides a smooth, dry, velvety slip with a soft-focus finish that can help blur the look of pores and texture.
Is it the same as regular dimethicone?
No. Regular dimethicone is a fluid, while this is a crosslinked elastomer network that swells into a gel or powder for a cushiony, blurring feel.