La Roche-Posay and Proactiv are among the brands affected. Popular acne treatments were recalled due to potential contamination with benzene. Research shows that long-term exposure to benzene may increase cancer risk. The U.S. Food and Drug Administration conducted benzene testing on the products after third-party testing raised concerns.

Posay, and Proactiv recalled benzoyl peroxide products that may contain elevated levels of a chemical linked to cancer.

Acne treatments sold by Proactiv and Walgreens Boots Alliance are being recalled because they are contaminated with a cancer-causing chemical called benzene, the US Food and Drug Administration said Tuesday.