Great Britain’s TPO ban: what it means for nail products, suppliers & techs

Trimethylbenzoyl diphenylphosphine oxide (TPO), a photoinitiator that helps gel nail products cure quickly under UV light and maintain colour stability, is now banned from cosmetic products placed on the market in Great Britain. This follows the ban of the ingredient within the EU cosmetics market that was enforced on 1 September 2025. “In January, the…