Skip to content

Hair Colorant

N,N-DIMETHYL-P-PHENYLENEDIAMINE SULFATE

CAS 6219-73-4
18

Safety score · 0–100

Avoid

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

A para-phenylenediamine type oxidative hair-dye intermediate. Acutely toxic and a known potent skin sensitizer; tightly restricted in cosmetics — only for rinse-off hair colour.

Function

HAIR DYEING

Skin benefits

  • Used as oxidative hair-dye intermediate
  • Develops dark shades when oxidised

Known concerns

  • Toxic if swallowed/inhaled and in skin contact (H301/H311/H331)
  • Strong skin irritant and serious eye irritant (H315/H319)
  • Skin sensitizer (H317) — PPD-class allergen
  • EU restricted in cosmetics; not for skin or eyebrow/eyelash dyes

References

EU

EU CosIng database

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

Related hair colorants

18
2,4-DIAMINODIPHENYLAMINE
Hair Colorant
 20
P-AMINOPHENOL
Hair Colorant
 20
Pyridinium, 1- methyl-4-[( methylphenylhydrazono)methyl]-, methyl sulfate
Hair Colorant
 12
HC BLUE NO. 5
Hair Colorant
 25
2-CHLORO-P-PHENYLENEDIAMINE SULFATE
Hair Colorant
 25
AMMONIUM PERSULFATE
Hair Colorant
 25
PEG-3 TOLUIDINE
Hair Colorant
 28
4-AMINO-3-NITROPHENOL
Hair Colorant

Check your shelf

Find N,N-DIMETHYL-P-PHENYLENEDIAMINE SULFATE in your products.

Scan any cosmetic product with LuxSense to see if it contains N,N-DIMETHYL-P-PHENYLENEDIAMINE SULFATE and get a full ingredient breakdown with safety scores.

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.