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Dihydroxyindole

Korean: 다이하이드록시인돌 · CAS 3131-52-0 · Functions: hair dyeing

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 Dihydroxyindole is treated in 2 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
AS ASEAN (10 countries)Restricted MFDS summary (Korean): * 【Restrictions】 Field of application and/or use : (a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products Use for dyeing eyelashes and eyebrows is not permitted. * 제한 【사용 범위】 : (a) 산화형 염모제에 염색 성분으로 (b) 비산화형 염모제에 염색 성분으로 눈썹이나 속눈썹의...
TW TaiwanRestricted MFDS summary (Korean): ※ 限量標準:係指該成分依產品使用說明書混合後之最高允許使用量。 ※ 本表成分除另有規定外,限使用於染髮劑類產品,其他類化粧品不得掺用。 * 단서조항 : ※ 限量標準:係指該成分依產品使用說明書混合後之最高允許使用量。 ※ 本表成分除另有規定外,限使用於染髮劑類產品,其他類化粧品不得掺用。 ※ 제한 표준 : 제품 사용 설명서에 따라 혼합 후 성분의 최대 허용 사용량을 나타냅니다. ※ 달리 명시되지 않는 한, 이 표의 성분은 머리 염색 제품으로 제한되며 다른 화장품은 혼합 할 수 없습니다. * 用途(용도) : 染髮 (염모제) * 배합한도 :...

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

Also listed as

DIHYDROXYINDOLE 다이하이드록시인돌

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 Dihydroxyindole 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 Dihydroxyindole 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 Dihydroxyindole 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 Dihydroxyindole used for in cosmetics?

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

What is Dihydroxyindole called on Korean labels?

Korea's MFDS standard Korean name is 다이하이드록시인돌.

What is the CAS number of Dihydroxyindole?

CAS 3131-52-0 (from official records).

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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Claude: 1 ChatGPT: 0 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 1
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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 →