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

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Tetrabromodiphenyl ether and pentabromodiphenyl ether

Korean: 테트라브로모다이페닐에터와 펜타브로모다이페닐에터 · CAS 5436-43-1 ·

KR South Korea (MFDS)

Prohibited MFDS prohibited ingredients

Source: MFDS — cosmetic ingredient use restrictions · checked Oct 17, 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

Tetrabromodiphenyl ether and pentabromodiphenyl ether 테트라브로모다이페닐에터와 펜타브로모다이페닐에터

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 Tetrabromodiphenyl ether and pentabromodiphenyl ether 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 Tetrabromodiphenyl ether and pentabromodiphenyl ether banned in South Korea?

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

Is Tetrabromodiphenyl ether and pentabromodiphenyl ether 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 Tetrabromodiphenyl ether and pentabromodiphenyl ether called on Korean labels?

Korea's MFDS standard Korean name is 테트라브로모다이페닐에터와 펜타브로모다이페닐에터.

What is the CAS number of Tetrabromodiphenyl ether and pentabromodiphenyl ether?

CAS 5436-43-1 (from official records).