Benzene appears to form when the acne products are at room temperature, at high heat, or when exposed to UV light, according ...

Posay’s Effaclar Duo acne treatment due to concerns over benzene contamination, a known carcinogen.Benzoyl peroxide, a key ingredient in Effaclar Duo, can degrade into benzene under certain conditions ...

Benzene, an ingredient responsible for past beauty ... Apply it in the evening, when you’re not exposed to UV light. Do not use the product past its expiration date. If it doesn’t look feel ...