- Benzene levels in benzoyl peroxide products may range from 0.19 to 35.3 parts per million.
- Excipient selection and temperature control during manufacturing have a significant impact on benzene formation.
- Leave-on formulations were associated with lower benzene concentrations compared with wash-off products.
- No statistically significant association was observed between benzoyl peroxide concentration and benzene levels.
- Further prospective studies are recommended to confirm these findings and ensure the safety of over-the-counter benzoyl peroxide products.
Benzene Formation in Benzoyl Peroxide: Formulation’s Role
Conexiant
February 14, 2025