Bis(α,α-dimethylbenzyl) peroxide
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A peroxide-based radical initiator used in industrial applications, with skin sensitisation potential that requires careful handling.
Bis(α,α-dimethylbenzyl) peroxide (also known as dicumyl peroxide) is a peroxyester used primarily in industrial polymerisation. It is not a typical cosmetic ingredient and is classified as a skin sensitizer (H317) in some regulatory evaluations. Peroxides are generally restricted in EU Annex III when used in cosmetic products, particularly in leave-on formulations, due to irritation and sensitisation potential.
Known concerns
- H317 skin sensitizer
- Peroxide with irritation potential
- Industrial use primary; restricted in cosmetic contexts
References
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.