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Hair Dye

N,N'-BIS(2-HYDROXYETHYL)-2-NITRO-P-PHENYLENEDIAMINE

CAS 84041-77-0
42

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A nitro-PPD hair dye (B34). EU-approved at strict limits (1% oxidative, 1.5% non-oxidative); like other PPDs it can sensitize, so a patch test is wise before use.

Function

HAIR DYEING

Skin benefits

  • Approved oxidative/non-oxidative hair dye

Known concerns

  • EU Annex III restricted use only
  • Skin sensitization potential like other PPDs
  • Not for skin or eyebrow/eyelash dyeing
  • Patch test recommended

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.