The European Union has officially banned gel nail polishes containing the ingredient Trimethylbenzoyl Diphenylphosphine Oxide (TPO), a chemical linked to fertility harm, with the UK expected to follow suit in late 2026 or early 2027.
The ban, which came into force on 1st September 2025, prohibits products containing TPO across all 27 EU member states. The decision follows research that classified TPO as a CMR (carcinogen, mutagen, and reprotoxic) substance, meaning it could cause reproductive or foetal issues. Animal tests found the chemical caused fertility problems and negatively impacted hormones.
What is TPO and why is it banned?
TPO is a photoinitiator commonly found in gel nail top coats, giving them a hard, glossy finish. It reacts with LED or UV lights to cure and harden the gel, known for its fast setting time. However, new research has raised safety concerns.
"TPO is being banned in the EU because scientists found it could be harmful if used in very high amounts over a long time," explained Dr Nalia Dinani, a consultant dermatologist from the Royal University Hospital in Bath. Speaking on a BBC Sounds podcast last month, she said: "The actual risk from having your nails done is probably very low, but EU law says if a chemical is labeled as possibly harmful, it can’t be used in cosmetics."
Can you still get gel nails in Europe?
Only gel polishes containing TPO are banned. Many brands are working towards becoming 'TPO-free', and unaffected products remain available, so manicures and pedicures can continue with TPO-free alternatives.
Will the UK ban gel nail polish?
The UK is expected to follow the EU's lead, with a ban likely in late 2026 or early 2027. In the meantime, consumers can still get gel nails as long as the polish is TPO-free. "Taking TPO out of nail products doesn't mean they'll perform worse, but the formulas will have to be changed," said Francesca Rapolla from the UK's Cosmetic, Toiletry & Perfumery Association.
Until the UK ban comes into force, nail salons and consumers are advised to check ingredient lists on bottles or ask salons about their products. Many brands are already reformulating to remove TPO ahead of the anticipated policy change.
