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2-METHYL-1-NAPHTHOL

CAS 7469-77-4
45

Safety score · 0–100

Moderate

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

2-methyl-1-naphthol is a cosmetic ingredient used in product formulations. Note: subject to regulatory restrictions in some markets. Exercise caution due to limited available safety data.

This naphthol derivative is listed in EU Cosmetic Regulation Annex III/213, restricting its use to hair dye formulations only and capping concentration at 1% in the finished product. It has documented skin sensitization potential, particularly in individuals with resorcinol sensitivities, and requires specific labeling for safe use.

Known concerns

  • Skin sensitization potential
  • Restricted to hair dye use only in EU (Annex III/213)
  • Cross-reactivity with other naphthols and resorcinol derivatives

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.