PEG-8 Methyl Ether Triethoxysilane is a polyethylene glycol-modified organosilane used in cosmetics as a film-forming polymer. It's added to boost formula uniformity, improve adhesion on skin or hair, and give a smooth, non-tacky finish.
A film-forming ingredient that gives products a smooth, less-tacky finish.
Category
Skin Conditioning
Type
Film Former
Ratings
Overall Rating
Fair
Comedogenic Risk
None
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
Is PEG-8 Methyl Ether Triethoxysilane a Good Ingredient?
Rated Fair: it's useful as a film former for laydown and feel, but the performance and longevity gains are highly formula-dependent and data on direct skin benefits are limited. Sensitive skin may also notice mild irritation or tightness from the polymer film, which keeps it below Good.
What it does
Skin Benefits
Improves product uniformity and adhesion while creating a smoother, less-tacky finish. May reduce transfer and improve wear in some formulas.
Where you'll find it
Uses in Skincare & Cosmetics
Found in makeup primers, long-wear liquid foundations, and hair serums or sprays to improve cosmetic wear and finish.
Before you use it
Safety
Generally low risk at cosmetic use levels with minimal skin penetration. Film formers can occasionally irritate very sensitive or compromised skin. Discontinue use on broken skin if irritation occurs.