What: An independent quality assurance company tested common, popular acne products that contain benzoyl peroxide and found that the chemicals can degrade into benzene, a known carcinogen, at levels far above FDA standards if left on the shelf.

Why it matters: The company, Valisure, has filed a citizen petition with the FDA and asked the agency to recall the products. That doesn’t mean it will definitely happen—but it’s something to keep an eye on.

Source: Valisure