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Basic Blue 124

Korean: 염기성청색124호 · CAS 67846-56-4 · Functions: hair dyeing

KR South Korea (MFDS)

No specific rule on file.

EU European Union (CosIng)

Restricted Annex III/305

Maximum: As from 3 September 2017: 0,5 %

Conditions: Product type: Hair dye substance in non-oxidative hair dye products As from 3 September 2017: — Do not use with nitrosating agents — Maximum nitrosamine content: 50 μg/kg — Keep in nitrite-free containers

Required label warning: As from 3 March 2018: ‘ Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary “black henna” tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary “black henna” tattoo in the past’.

Source: EU CosIng — Annex III · checked Oct 17, 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 Basic Blue 124 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.

MarketStatusConditions
AS ASEAN (10 countries)Restricted MFDS summary (Korean): * 【Restrictions】 Field of application and/or use : Hair dye substance in nonoxidative hair dye products Use for dyeing eyelashes and eyebrows is not permitted. * 제한 【사용 범위】 : 비산화형 염모제에서 염색 성분 눈썹이나 속눈썹의 염색은 사용금지 * 【Restrictions】 Maximum authorised concentration in the finished cosmetic product...

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

Also listed as

BASIC BLUE 124 염기성청색124호

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 Basic Blue 124 banned in the European Union?

In the EU's CosIng records it is listed as “Restricted” (EU CosIng — Annex III). The maximum allowed is As from 3 September 2017: 0,5 %. A restricted ingredient is allowed within the stated conditions.

Is Basic Blue 124 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 Basic Blue 124 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 Basic Blue 124 used for in cosmetics?

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

What is Basic Blue 124 called on Korean labels?

Korea's MFDS standard Korean name is 염기성청색124호.

What is the CAS number of Basic Blue 124?

CAS 67846-56-4 (from official records).

Ask KBeauty Verified™
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 →