Unilever recalls popular hair care products due to concerns of potentially ‘elevated levels’ of cancer-causing chemical Tuesday, October 25 by ABC News(NEW YORK) -- Unilever recently announced a voluntary recall of 19 popular dry shampoo aerosol products sold in the United States due to concerns about benzene, a chemical known to cause cancer.Exposure to benzene, which is classified as a human carcinogen, can occur through... Read More.