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Hair Conditioning

2-METHOXYMETHYL-P-PHENYLENEDIAMINE

CAS 337906-36-2
22

Safety score · 0–100

Caution

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

A modified permanent hair-dye precursor (ME-PPD) marketed as gentler than PPD. Still toxic if ingested or absorbed, still a sensitiser, and only permitted under strict EU hair-dye limits.

Function

HAIR DYEING

Skin benefits

  • Permanent hair-dye precursor (ME-PPD) with reduced sensitisation versus PPD
  • Allows colour for some PPD-allergic users (after dermatology guidance)

Known concerns

  • GHS Danger: H301/H311/H331 toxic if swallowed, in skin contact and inhaled
  • H317 may cause an allergic skin reaction
  • H319 serious eye irritation
  • Toxic to aquatic life with long-lasting effects (H411)
  • Permanent hair-dye precursor — strict EU Annex III conditions apply

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.