U.S. health officials are asking retailers to pull a small number of acne creams from their store shelves after government testing found they contain slightly elevated levels of a chemical associated with cancer.

Elevated levels of benzene were detected in seven acne products distributed to national retailers. Here's what the recall means.

Now more products have been recalled due to the same reason. Health reported Wednesday how L’Oréal took their popular La Roche-Posay Effaclar Duo acne treatment due to a potential benzene contamination. An independent lab, Vailsure, alerted the U.S. Food and Drug Administration (FDA) to this issue after testing revealed this contamination.