4-NITRO-O-PHENYLENEDIAMINE
4-NITRO-O-PHENYLENEDIAMINE
4-Nitro-o-phenylenediamine is a synthetic dye used in hair care formulations. Its primary role is to color hair.
Hair conditioningColorantRestricted use
Ingredient
Roles & functions
Hair conditioning — Improves the appearance, softness and manageability of the hair.
Colorant — Adds colour to the product or to the application.
Regulatory framework
What the authorities say
| Authority | Status |
|---|---|
| Commission européenne (CosIng, Règl. 1223/2009) | Autorisé sous conditions |
| CLP classification (Reg. 1272/2008) | No CMR classification |
| ECHA — endocrine disruptor (human health) | Not identified as an endocrine disruptor |
| ECHA — Candidate List (SVHC, REACH Art. 59) | Not on the Candidate List (SVHC) |
| European Commission (Reg. 1223/2009, Annex III) | No cosmetic allergen subject to mandatory labelling |
| European Commission (EU catalogue of nanomaterials, Reg. 1223/2009) | No referenced nanoform |
| European Commission — Annex III (Reg. 1223/2009) — maj Fri, 07 Aug 2026 16:37:23 GMT | Permitted subject to restrictions (Annex III) — Hair dye substance in oxidative hair dye products — To be printing on the label: Hair colorants can cause severe allergic reactions. — After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0,5% |
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This information is reported factually and with attribution (authorities and publications cited). It does not constitute medical advice, for your situation, ask a pharmacist or a healthcare professional for advice.
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