Korean: 4-하이드록시프로필아미노-3-나이트로페놀 · CAS 92952-81-3 · Functions: hair dyeing
Restricted MFDS restricted ingredients
Conditions (official MFDS text, Korean):
* 배합한도 : 2.6%
염모용 화장품에만 사용
다만, 염모제에서 용법·용량에 따른 혼합물의 염모성분으로서 2.6 % 이하는 제외
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 17, 2026
Restricted Annex III/205
Maximum: (b) 2.6%
Conditions: Product type: (a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (a) After mixing under oxidative conditions the maximum use concentration applied to hair must not exceed 2.6% calculated as free base. For (a) and (b): - Do not use with nitrosating systems - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers
Required label warning: (a) To be printed on the label: The mixing ratio. “ 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
Restricted Annex III/219
Maximum: (b) 2,6 %
Conditions: Product type: (a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (a) After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 2,6 % calculated as free base. For (a) and (b): — Do not use with nitro sating agents — Maximum nitrosamine content: 50 μg /kg — Keep in nitrite-free containers
Required label warning: (a) To be printed on the label: The mixing ratio. ‘ 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
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How 4-Hydroxypropylamino-3-Nitrophenol 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 (산화형 염색제) : 2.6% * 【화장품 중 최대사용농도】 배합한도 (비산화형 염색제) : 2.6% * 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): (15) The free base and salts of this hair colouring ingredient, unless prohibited under Annex II, are permitted for use. * 단서조항(주석) : (15) The free base and salts of this hair colouring ingredient, unless prohibited under Annex II, are permitted for use. Annex II의 금지된 염모제의 염이나 자유 염기가 아니라면,... |
| 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 17, 2026
4-HYDROXYPROPYLAMINO-3-NITROPHENOL 4-하이드록시프로필아미노-3-나이트로페놀
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 (b) 2.6%. A restricted ingredient is allowed within the stated conditions.
In Korea's MFDS records it is listed as “Restricted” (MFDS — cosmetic ingredient use restrictions). A restricted ingredient is allowed within the stated conditions.
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 4-하이드록시프로필아미노-3-나이트로페놀.
CAS 92952-81-3 (from official records).