Ingredient
Trisiloxane
Octamethyltrisiloxane
MDM
What it is
A low-viscosity, volatile linear silicone (the INCI name corresponds to octamethyltrisiloxane) used as a lightweight carrier and spreading agent, common in sunscreens and other formulas for a silky, non-greasy after-feel.
How it works
Its low surface tension and volatility help spread UV filters and other actives evenly across skin before evaporating, leaving a light, non-tacky finish without an occlusive film.
What it does
Emollient
Solvent
Skin conditioning
Concerns to know
-
Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.