Stearyl Dimethicone ●
TL;DR. This ingredient is a conditioning emollient and film-former that adds slip, gloss, and water resistance to skin care, hair care, and color cosmetics. It also helps reduce tack and improve spreadability in anhydrous or emulsion systems.
What does Stearyl Dimethicone do in a cosmetic formula?
This ingredient is a conditioning emollient and film-former that adds slip, gloss, and water resistance to skin care, hair care, and color cosmetics. It also helps reduce tack and improve spreadability in anhydrous or emulsion systems.
Is Stearyl Dimethicone clean?
It is generally low-irritation and inert on skin, but many clean frameworks scrutinize or restrict this class because it is synthetic and persistent rather than readily biodegradable. The concern is more about environmental profile and standards alignment than typical skin tolerance.
Is Stearyl Dimethicone sustainable?
It is typically made from mineral-derived silicon chemistry plus petrochemical or oleochemical alkyl inputs. It is not readily biodegradable and can persist in wastewater and sediments, which is the main environmental friction.
Is Stearyl Dimethicone COSMOS-approved?
It is not aligned with COSMOS-natural or COSMOS-organic standards because synthetic organosilicon polymers are not permitted in those frameworks. From a Green Chemistry lens, its persistence and limited biodegradability outweigh its low reactivity and functional efficiency.
How does Stearyl Dimethicone work chemically?
The molecule is a waxy, long-chain alkyl-substituted organosilicon polymer with a flexible inorganic backbone and C18 hydrocarbon side groups, giving it a soft, substantive feel. It is typically used at low single-digit levels, is broadly pH-stable, and is often paired with oils, waxes, esters, or volatile carriers to tune glide, payoff, and film properties.
Last updated 2026-05-13