The European Union has banned the chemical Trimethylbenzoyl Diphenylphosphine Oxide (TPO) used in gel manicures due to potential health risks, including cancer and reproductive harm. This move has raised safety questions for American consumers, as beauty brands begin reformulating products to comply with the EU’s stricter standards.
Gel manicures are a beauty staple for millions, lasting weeks without chips and staying glossy through work, workouts, and everything in between. However, as of September 1, 2025, the European Union has banned a chemical used in many gel polishes, sparking safety concerns and uncertainty for nail salons, according to a press release.
The ingredient in question is Trimethylbenzoyl Diphenylphosphine Oxide (TPO). This compound reacts under UV light to make the polish harden quickly and give it a glass-like finish. The decision appears to stem from several studies linking TPO exposure to fertility issues. These studies often focused on animal subjects, not humans, but the EU uses a strict