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.

Parent company La Roche-Posay has pulled the Effaclar Duo Acne Spot Treatment from L'Oreal's lineup, due to a cancer-causing carcinogen contamination.

L’Oreal has recalled all U.S. lots of La Roche-Posay Effaclar Duo acne treatment due to concern that it may contain a carcinogenic chemical. Here's what to know.