‘Forever Chemicals’ Reckoning Hits Cosmetics With New State Laws

A string of first-of-their-kind state laws banning “forever chemicals” in cosmetics like lipstick and mascara took effect this month amid mounting worries about the chemicals’ health and environmental risks.

States including California and Colorado are the first to target the cosmetic industry’s intentional use of per- and polyfluoroalkyl substances, known as PFAS or “forever chemicals” because they’re resistant to breaking down. Several more states are looking to impose similar bans as part of a broader push to remove PFAS in a range of consumer products, from textiles to cookware.

PFAS—often used for stain and water resistance—have been ...