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

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3,5-Dihydroxy-4-isopropylstilbene

Korean: 3,5-다이하이드록시-4-아이소프로필스틸벤 · CAS 79338-84-4 ·

KR South Korea (MFDS)

No specific rule on file.

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.

Other markets

How 3,5-Dihydroxy-4-isopropylstilbene is treated in 1 more market, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.

Market	Status	Conditions
CN China	Prohibited	if benzene is technically unavoidable to be present in cosmetics as an impurity, its limit should not exceed 2mg/kg.

Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026

Also listed as

3,5-Dihydroxy-4-isopropylstilbene 3,5-다이하이드록시-4-아이소프로필스틸벤

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 3,5-Dihydroxy-4-isopropylstilbene 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 3,5-Dihydroxy-4-isopropylstilbene banned in South Korea?

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

Is 3,5-Dihydroxy-4-isopropylstilbene 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 3,5-Dihydroxy-4-isopropylstilbene called on Korean labels?

Korea's MFDS standard Korean name is 3,5-다이하이드록시-4-아이소프로필스틸벤.

What is the CAS number of 3,5-Dihydroxy-4-isopropylstilbene?

CAS 79338-84-4 (from official records).