Korean: 에치씨황색4호 · CAS 59820-43-8 · Functions: hair dyeing
No specific rule on file.
Restricted Annex III/253
Maximum: 1,5 %
Conditions: Product type: Hair dye substance in non-oxidative hair dye products — Do not use with nitrosating agents — Maximum nitrosamine content: 50 μg/kg — Keep in nitrite-free containers
Source: EU CosIng — Annex III · checked Oct 16, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How HC Yellow NO. 4 is treated in 3 more markets, 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 | Restricted | MFDS summary (Korean): * 【화장품 중 최대사용농도】 배합한도 (비산화형 염색제) : 1.5% * 기타 제한조건 및 요구사항 : 니트로화 시스템과 함께 사용하지 않고 니트로아소민의 최대함량은50μg/kg이며 아질산염이 없는 용기에 보존하여야 함. |
| AS ASEAN (10 countries) | Restricted | MFDS summary (Korean): * 【Restrictions】 Field of application and/or use : Hair dye substance in non-oxidative hair dye products Use for dyeing eyelashes and eyebrows is not permitted. * 제한 【사용 범위】 : 비산화형 염모제에 염색 성분으로 눈썹이나 속눈썹의 염색은 사용금지 * 【Restrictions】 Maximum authorised concentration in the finished cosmetic... |
| TW Taiwan | Restricted | MFDS summary (Korean): ※ 染髮、脫色、脫染及燙髮產品之應刊載之注意事項，應依衛生福利部公告刊載之。 ※ 染髮產品之限量標準：係指該成分依產品使用說明書混合後之最高允許使用量。 ※ 化粧品之外包裝或容器，應明顯標示本表所列成分之注意事項。因外包裝或容器表面積過小或其他特殊情形致不能標示者，應於標籤、仿單或以其他方式刊載之。 ※ 本表所稱之口腔製劑，包含非藥用牙膏、漱口水類及美白牙齒類等化粧品。 ※ 化粧品宣稱效能者，須符合化粧品標示宣傳廣告涉及虛偽誇大或醫療效能認定準則規定。 * 단서조항 : ※ 染髮、脫色、脫染及燙髮產品之應刊載之注意事項，應依衛生福利部公告刊載之。 ※... |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 16, 2026
HC YELLOW NO. 4 에치씨황색4호
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.
In the EU's CosIng records it is listed as “Restricted” (EU CosIng — Annex III). The maximum allowed is 1,5 %. A restricted ingredient is allowed within the stated conditions.
We found no specific rule for it in Korea's MFDS records. That is not an approval or a safety statement.
We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.
The EU's CosIng inventory lists its functions as: hair dyeing.
Korea's MFDS standard Korean name is 에치씨황색4호.
CAS 59820-43-8 (from official records).