Snapshot
- Overview
- A silicone that helps makeup last longer and resist water.
- Category
- Tone/Texture, Skin Conditioning
- Type
- Silicone
Stearyl Triethoxysilane
Stearyl triethoxysilane is an organosilane silicone with a long stearyl chain and hydrolyzable triethoxy groups. It works as a film former and surface modifier, helping products spread more evenly, wear longer, resist water, and feel more refined.
Like this ingredient?
Our take
Is Stearyl Triethoxysilane a Good Ingredient?
It rates Fair because it boosts wear and water resistance as a film former, but direct skin benefits are limited and data on long-term conditioning effects are modest. Film formation and possible hydrolysis byproducts can also pose mild irritation risks for sensitive or compromised skin.
What it does
Skin Benefits
It helps makeup stay put longer and better tolerate sweat and humidity, providing a refined, silky finish that smooths the look of uneven texture.
Where you'll find it
Uses in Skincare & Cosmetics
It's used in primers, long-wear foundations, and sunscreens to form flexible films that improve durability, and appears in setting products and fluid serums aimed at a smoother finish.
Before you use it
Safety
It's generally regarded as low toxicity, but may cause mild stinging or irritation, especially on sensitive or freshly exfoliated skin. Avoid applying to broken skin and discontinue use if redness or discomfort occurs.
Products with Stearyl Triethoxysilane
