film former
Perfluorohexylethyl Triethoxysilane
What we found
We don't have a detailed writeup for Perfluorohexylethyl Triethoxysilane yet — it's currently classified as "Avoid (in cosmetics)" based on available data.
Source: FDABy product type
In cosmetics
AvoidA PFAS that the EU has restricted in cosmetics under REACH (Regulation (EU) 2024/2462) since 10 October 2026; California and Minnesota also ban intentionally added PFAS in cosmetics.
Rules by region
How the EU, the US and Canada treat Perfluorohexylethyl Triethoxysilane, with the regulation behind each rule.
- European UnionRestricted
Limited to 1,000 ppb in cosmetics. From 10 October 2026, cosmetics may not contain PFHxA-related substances, including this one, at or above 1,000 ppb in total. Products placed on the market before that date are exempt. A limit that low is rated the same as a ban.
EUR-Lex – Regulation (EU) 2024/2462 (REACH Annex XVII, entry 79) · Since October 10, 2026 - California and MinnesotaBanned
Cosmetics with intentionally added PFAS banned since 1 January 2025. Both states define PFAS as chemicals with at least one fully fluorinated carbon atom, which includes this ingredient. Minnesota's law is Minn. Stat. 116.943.
California Legislature – Health and Safety Code §108981.5 · Since January 1, 2025
Last updated November 11, 2026
Is Perfluorohexylethyl Triethoxysilane safe?
We don't give a safety verdict. Here is what the EU, Canada and the US say.
Who should be careful
In the app, a household profile with any of these gets an alert when a product contains Perfluorohexylethyl Triethoxysilane.
- PFAS ("forever chemicals")
Related ingredients
Other ingredients that do the same job.
See it in a real product.
Scan any label and get a full ingredient-by-ingredient breakdown.