Perfluorooctyl Triethoxysilane

What Perfluorooctyl Triethoxysilane is & what it does

Perfluorooctyl Triethoxysilane is a fluorinated silane used to surface-treat powders and pigments. In skincare and sunscreen formulas it coats particles such as mineral UV filters and color pigments so they disperse evenly and resist water and oil. This treatment is notable for improving the smooth feel, water resistance and durability of the finished product.

What does Perfluorooctyl Triethoxysilane do in skincare?

Perfluorooctyl Triethoxysilane is a surface-treatment agent that coats powders and pigments, including mineral UV filters. The coating helps particles disperse evenly and resist water and oil, improving smooth feel, water resistance and durability.

Is Perfluorooctyl Triethoxysilane natural or synthetic?

It is synthetic. The ingredient is a fluorinated silane manufactured specifically to coat and modify the surface of cosmetic powders and pigments.

Is Perfluorooctyl Triethoxysilane safe?

This ingredient is used as a particle surface treatment in cosmetics and sunscreens. In a finished product it is bound to powders rather than free in the formula. As with any ingredient, sensitivity can vary, so patch testing is sensible. We do not make medical claims about it.

Sunscreens with Perfluorooctyl Triethoxysilane

We rate 12 sunscreens that contain it, showing the top 10 by overall score:

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