Korean: 4,5-다이아미노-1-메틸피라졸에이치씨엘 · CAS 21616-59-1 · Functions: hair dyeing
Prohibited MFDS prohibited ingredients
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 16, 2026
Prohibited Annex II/1217
Source: EU CosIng — Annex II · checked Oct 16, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How 4,5-Diamino-1-Methylpyrazole HCL is treated in 5 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 | Prohibited | — |
| AS ASEAN (10 countries) | Prohibited | MFDS summary (Korean): when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
| TW Taiwan | Prohibited | — |
| BR Brazil | Prohibited | MFDS summary (Korean): when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
| AR Argentina | Prohibited | MFDS summary (Korean): when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 16, 2026
4,5-DIAMINO-1-METHYLPYRAZOLE HCL 4,5-다이아미노-1-메틸피라졸에이치씨엘
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.