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TRIMETHYLBENZOYL DITOLYLPHOSPHINE OXIDE

CAS 270586-78-2
60

Safety score · 0–100

Fine

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

About

Trimethylbenzoyl Ditolylphosphine Oxide is a cosmetic ingredient. Exercise caution due to limited available safety data.

This photoinitiator generates free radicals under UV light exposure to cure resin systems in nail cosmetic products. It is permitted in cosmetic formulations under EU Regulation 1223/2009 without specific restriction, provided it is used at concentrations that do not cause skin sensitisation. The SCCS has assessed similar benzoyl phosphine oxides and noted low irritation potential at typical use concentrations.

Skin benefits

  • Enables rapid UV-cured gel formulations
  • Efficient photoinitiator for nail cosmetics

Known concerns

  • May cause skin sensitisation at high concentrations
  • Photocontact allergy possible in predisposed individuals

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 — always read the physical product label and consult a healthcare professional for personal concerns.