Health Canada is recalling more than 1.5 million hair products because of the detection of benzene, a chemical that is classified as a human carcinogen.

The products of concern are specific lots of Bed Head, TIGI, Dove, and Tresemmé dry shampoo products that are in aerosol cans and have been purchased in the last two years.

Health Canada says to immediately stop using the recalled product and dispose of it in accordance with the instructions for disposal on the packaging. Consumers may contact the company for reimbursement.

Exposure to benzene can happen through inhalation or orally and can also be absorbed through the skin. Heavy exposure to the chemical has been shown to cause several types of cancer including leukemia.

The full list of recalled products can be found below.