Silica Dimethyl Silylate is a hydrophobic fumed silica treated with dimethyl groups and used as a cosmetic rheology modifier. It's employed to thicken and stabilize formulas, add slip and blur, and reduce greasy feel on skin or hair.
A silica powder that controls shine and blurs uneven texture.
Category
Oil Control, Tone/Texture
Type
Rheology Modifier
Ratings
Overall Rating
Great
Comedogenic Risk
None
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
Is Silica Dimethyl Silylate a Good Ingredient?
This one earns Great because the hydrophobic silica reliably boosts oil control and texture while staying chemically inert and stable, with a long history of low irritation at typical use levels.
What it does
Skin Benefits
It helps control excess shine and gives a soft-focus, blurred look to uneven texture, contributing to a drier, non-tacky finish that can help makeup last longer.
Where you'll find it
Uses in Skincare & Cosmetics
It's common in mattifying primers, gel-creams, and liquid foundations to refine the finish, and it's also used in hair texturizing pastes and balms for a more touchable feel.
Before you use it
Safety
It's generally well tolerated on skin and irritation is uncommon. As a fine powder, avoid inhaling dust during handling or application. No widely recognized regulatory restrictions apply to topical use.