Back to Ingredient Dictionary

PERFLUOROOCTYL TRIETHOXYSILANE

Description

Perfluorooctyl triethoxysilane is a fluorinated silane compound widely used in skincare and cosmetic formulations for its unique properties. This synthetic ingredient functions primarily as a surface modifier and water repellent agent. Its molecular structure consists of a perfluoroalkyl chain attached to a silane group, allowing it to form durable, hydrophobic coatings on various substrates.

In skincare applications, perfluorooctyl triethoxysilane creates a thin, invisible film on the skin or hair surface, providing water and oil resistance. This characteristic makes it valuable in long-wearing makeup formulations, sunscreens, and hair care products. The ingredient enhances the spreadability of formulations and contributes to a smooth, silky feel upon application.

While effective, concerns have been raised about the environmental persistence and potential bioaccumulation of perfluorinated compounds. Regulatory bodies continue to evaluate its safety profile. When used in cosmetic formulations, it is typically present in low concentrations, usually less than 1%. Formulators must consider both its performance benefits and potential environmental impact when incorporating this ingredient into skincare products.