The FDA tested 95 products containing benzoyl peroxide, an ingredient widely used to treat acne that can form benzene as a byproduct. It found that six products could have more benzene than usual.
Benzene is a 'Class 1 solvent,' a carcinogen with 'unknown ... Proactiv+ Emergency Blemish Relief Cream Benzoyl Peroxide 5% ...
Even with daily use of these products for decades, the risk of a person developing cancer because of exposure to benzene ...