Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are back in the news this week, after The Washington Post published an article with the headline, “Is your long-lasting makeup toxic? Study raises concerns about PFAS in cosmetics.” The article notes that the US Centers for Disease Control and Prevention has linked PFAS to kidney, liver, immunological, developmental and reproductive issues. Most recently, the CDC said there is evidence that PFAS affect the antibody response to v...