OLYMPIA, WA – The Washington State Department of Ecology has adopted a new rule under the state’s Toxic-Free Cosmetics Act (TFCA) that will restrict the use of formaldehyde and formaldehyde-releasing chemicals in cosmetic products beginning January 1, 2027.

The regulation, finalized on August 28, identifies 25 specific formaldehyde-releasing chemicals that will be banned when intentionally added to cosmetic products sold in Washington. Formaldehyde and related compounds have long been used in cosmetics as preservatives and in hair-smoothing treatments, but studies link them to cancer, respiratory issues, and skin irritation.

The TFCA, passed in 2023, already restricts several harmful substances including lead, mercury, methylene glycol, phthalates, triclosan, and PFAS starting in 2025. The newly adopted rule extends protections by addressing formaldehyde, which can be released into the air when certain hair products are heated, posing particular risks for salon workers and clients.

To help businesses transition, the state is offering support programs such as the Safer Salons Partnership and certification subsidies for manufacturers reformulating products. Retailers will be allowed a one-year sell-through period for existing stock after the 2027 ban takes effect.

The Department of Ecology encourages businesses and consumers to learn more about compliance and safer product options through its Toxic-Free Cosmetics Act webpage.