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KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
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Named by what the crawler says it is; look-alikes we detect are counted under Others. Google · Gemini includes Googlebot, Google’s search crawler, whose index Google also uses for its AI features; other search engines and bots are in Others. AI visibility →

A mixture of: Reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate (1:2), and reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate (1:3)

Korean: 4,4'-메틸렌비스[2-(4-하이드록시벤질)-3,6-다이메틸페놀]과 6-다이아조-5,6-다이하이드로-5-옥소-나프탈렌설포네이트(1:2)의 반응생성물과 4,4'-메틸렌비스[2-(4-하이드록시벤질)-3,6-다이메틸페놀]과 6-다이아조-5,6-다이하이드로-5-옥소-나프탈렌설포네이트(1:3) 반응생성물과의 혼합물 ·

KR South Korea (MFDS)

Prohibited MFDS prohibited ingredients

Conditions (official MFDS text, Korean):
4,4'-메틸렌비스[2-(4-하이드록시벤질)-3,6-다이메틸페놀]과 6-다이아조-5,6-다이하이드로-5-옥소-나프탈렌설포네이트(1:2)의 반응생성물과 4,4'-메틸렌비스[2-(4-하이드록시벤질)-3,6-다이메틸페놀]과 6-다이아조-5,6-다이하이드로-5-옥소-나프탈렌설포네이트(1:3) 반응생성물과의 혼합물로서 금지

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

EU European Union (CosIng)

Prohibited Annex II/1187

Source: EU CosIng — Annex II · checked Oct 16, 2026

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 A mixture of: Reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate (1:2), and reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate (1:3) is treated in 4 more markets, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.

MarketStatusConditions
CN ChinaProhibited —
AS ASEAN (10 countries)Prohibited MFDS summary (Korean): A mixture of: Reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate (1:2), and reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate...
BR BrazilProhibited MFDS summary (Korean): A mixture of: Reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate (1:2), and reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate...
AR ArgentinaProhibited MFDS summary (Korean): A mixture of: Reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate (1:2), and reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate...

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

Also listed as

A mixture of: Reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate (1:2), and reaction product of 4,4'-methylenebis[2-(4-hydroxybenzyl)-3,6-dimethylphenol] and 6-diazo-5,6-dihydro-5-oxo-naphthalenesulfonate (1:3) 4,4'-메틸렌비스[2-(4-하이드록시벤질)-3,6-다이메틸페놀]과 6-다이아조-5,6-다이하이드로-5-옥소-나프탈렌설포네이트(1:2)의 반응생성물과 4,4'-메틸렌비스[2-(4-하이드록시벤질)-3,6-다이메틸페놀]과 6-다이아조-5,6-다이하이드로-5-옥소-나프탈렌설포네이트(1:3) 반응생성물과의 혼합물 4,4'-메칠렌비스[2-(4-하이드록시벤질)-3,6-다이메칠페놀]과 6-다이아조-5,6-다이하이드로-5-옥소-나프탈렌설포네이트(1:2)의 반응생성물과 4,4'-메칠렌비스[2-(4-하이드록시벤질)-3,6-디메칠페놀]과 6-다이아조-5,6-다이하이드로-5-옥소-나프탈렌설포네이트(1:3) 반응생성물과의 혼합물

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.

Ask KBeauty Verified™
KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
Reading time:
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ChatGPT: 2 Claude: 0 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 0
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Named by what the crawler says it is; look-alikes we detect are counted under Others. Google · Gemini includes Googlebot, Google’s search crawler, whose index Google also uses for its AI features; other search engines and bots are in Others. AI visibility →