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PPD-derivative hair dye

2-METHOXYMETHYL-P-PHENYLENEDIAMINE SULFATE

CAS 337906-37-3
32

Safety score · 0–100

Caution

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

A modified PPD-style permanent hair dye precursor approved in the EU under tight limits as a lower-sensitisation alternative. Still a recognised allergen, especially for people already reactive to PPD.

Skin benefits

  • Permitted oxidative hair dye precursor under EU Annex III with strict use limits
  • Marketed as a less sensitising alternative to PPD for permanent hair colour

Known concerns

  • Still classified as a skin sensitiser by SCCS, though weaker than classical PPD
  • Restricted to maximum on-head concentration of 1.8% in EU oxidative hair dye products
  • Cross-reactivity with PPD-allergic consumers is possible
  • Not approved for eyelash/eyebrow dyeing without dedicated authorisation

References

EU

EU CosIng database

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

Same plant / compound family

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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.