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KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.

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Perfluorooctylethyl Triethoxysilane

Korean: 퍼플루오로옥틸에틸트라이에톡시실레인 · CAS 101947-16-4 · Functions: anticaking

KR South Korea (MFDS)

Prohibited MFDS prohibited ingredients

Source: MFDS — cosmetic ingredient use restrictions · checked Oct 16, 2026

EU European Union (CosIng)

No specific rule on file.

US United States (FDA)

No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.

Also listed as

PERFLUOROOCTYLETHYL TRIETHOXYSILANE 퍼플루오로옥틸에틸트라이에톡시실레인

Information only, not medical advice. Rules change — always check the linked official source. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist.

Frequently asked questions

Is Perfluorooctylethyl Triethoxysilane banned in the European Union?

We found no specific rule for it in the EU's CosIng records. That is not an approval or a safety statement.

Is Perfluorooctylethyl Triethoxysilane banned in South Korea?

In Korea's MFDS records it is listed as “Prohibited” (MFDS — cosmetic ingredient use restrictions).

Is Perfluorooctylethyl Triethoxysilane allowed in cosmetics in the U.S.?

We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.

What is Perfluorooctylethyl Triethoxysilane used for in cosmetics?

The EU's CosIng inventory lists its functions as: anticaking.

What is Perfluorooctylethyl Triethoxysilane called on Korean labels?

Korea's MFDS standard Korean name is 퍼플루오로옥틸에틸트라이에톡시실레인.

What is the CAS number of Perfluorooctylethyl Triethoxysilane?

CAS 101947-16-4 (from official records).