How safe is the makeup you use? Cleveland Clinic dermatologist Dr. Melissa Piliang explains what 'forever chemicals' are and why they may be hiding in your favorite waterproof mascara or long-lasting lipstick. Recently the 'No PFAS in Cosmetics Act' was introduced in the U.S. House & Senate following the release of a study that found high levels of PFAS in popular makeup products sold in the U.S. and Canada. Legislators are working on a bill to ban the use of these substances in cosmetics.