The sell-through window under Washington's Toxic-Free Cosmetics Act closed on January 1, 2026: from that date, retailers in the state may no longer sell remaining inventory of cosmetics containing the nine chemicals and chemical classes the law restricts, including formaldehyde, per the Washington State Department of Ecology. Products made non-compliant in 2025 must now be off the shelf.
This site publishes information, not medical advice — questions about exposure to any cosmetic chemical belong with a clinician or a poison control center.
Which ingredients does the law restrict?
The Toxic-Free Cosmetics Act, passed in 2023, restricts formaldehyde and a set of chemical classes used in color cosmetics and personal-care products, including lead and other listed metals, PFAS, ortho-phthalates, and certain fragrance-linked substances, per the Department of Ecology's published implementation guidance. Washington was the first state to ban formaldehyde from cosmetics outright. The law regulates the finished cosmetic product, which means the restriction reaches lipsticks, eyeshadows, hair products, and skin creams alike rather than singling out one category.
Why did the sell-through period matter?
Because compliance timelines decide how a ban actually lands. When the restriction took effect on January 1, 2025, it applied to manufacturing and initial sale; retailers were allowed to clear existing stock for twelve months. That grace period ended on January 1, 2026, so a lipstick formulated before the ban could legally sit on a Washington shelf through 2025 — and not one day longer. For brands, the two-step timeline turned a chemical restriction into an inventory-management problem, with warehouses repriced or shipped to other states ahead of the deadline.
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Does this affect shoppers outside Washington?
Often, yes, though not by law. National brands frequently reformulate an entire product line rather than maintain two versions — one for Washington, one everywhere else — so restrictions in a single large state tend to ripple into national assortments. New York readers may already be using products reformulated under Washington's deadlines without any label announcement. California's separate restrictions under its own cosmetics law push in the same direction, and retailers increasingly apply the strictest common denominator nationwide.
What comes next for cosmetics regulation?
Washington's Department of Ecology has moved to a second phase: a rulemaking on formaldehyde-releasing chemicals, finalized to take effect in 2027, which would extend the restriction to preservative systems that release formaldehyde over time, per the agency's rulemaking page. Federally, the FDA's authorities under the Modernization of Cosmetics Regulation Act run on their own slower calendar. The result is a familiar pattern in beauty regulation: states move first, national supply chains adjust, and federal rules follow years behind.
For the shelf, the practical meaning of January 1 is quiet: no recalls, no headlines — just formulas that no longer contain the restricted substances, and a restocked aisle that got that way because of a deadline most shoppers never heard about.