On October 18, 2022, Unilever voluntarily recalled 19 dry shampoo aerosol products, including certain Dove, Nexxus, Suave, TIGI, and TRESemmé dry shampoos, due to the potential presence of benzene. The same finding made Procter & Gamble (P&G) recall more than 30 aerosol spray haircare products, including dry shampoos and dry conditioners, and more than a dozen aerosol antiperspirant sprays. The International Agency for Research on Cancer (IARC) classifies benzene as “carcinogenic to humans” based on evidence that exposure of adequate frequency, intensity, and duration may be attributed to the development of acute myeloid leukemia. Although the Food and Drug Administration (FDA) didn’t find the health hazard evaluation overly worrying, Unilever decided to recall the products out of an abundance of caution. Scientists at Paustenbach & Associates have over 40 years of experience in conducting risk assessments of benzene in the workplace, ambient environment, point source emissions, and consumer products and foods in dozens of litigation cases. We know how to evaluate the potential health risk of benzene in any product and to learn more, please contact Melinda Donnell at mdonnell@paustenbachandassociates.com.