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Di-tert-butyl peroxide

CAS 110-05-4
28

Safety score · 0–100

Caution

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

Di-tert-butyl Peroxide is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

Di-tert-butyl peroxide is a dialkyl peroxide classified under EU Annex III (part 3) as restricted in cosmetic products. It is a potent skin irritant and may cause serious eye damage. As a strong oxidizing agent, it presents fire and explosion hazards, limiting its utility in topical cosmetic formulations.

Known concerns

  • Severe eye irritant (H318)
  • Skin irritant
  • Strong oxidizer — fire/explosion hazard
  • EU Annex III restricted in cosmetics

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.