New UK cosmetics regulations will ban the use of TPO (Trimethylbenzoyl Diphenylphosphine Oxide) in all cosmetic products, including gel polish, from August 15, 2026. This follows a similar ban by the European Union, which classified TPO as a CMR Category 1B substance, meaning it may be harmful to health with high exposure.
What Is TPO and Why Is It Banned?
TPO has been widely used in gel nail products to help them cure quickly and evenly under UV or LED lamps. However, studies have suggested potential risks with prolonged or high-level exposure, leading regulators to restrict its use. The EU took a precautionary, hazard-based approach, meaning any cosmetic product containing TPO can no longer be sold, supplied, or used in the EU. From August 15, manufacturers and importers can no longer place new batches of TPO-containing products onto the UK market.
Impact on Salons and Consumers
Salon owners, nail technicians, and beauty professionals are advised to check with their suppliers to ensure products remain compliant. Danielle Louise, beauty expert at Fresha, said: "If you regularly get gel nails, there's no reason to cancel your appointments or worry that something has suddenly become unsafe. The vast majority of professional salons use trusted brands that keep up to date with cosmetic regulations, and many manufacturers have already introduced reformulated products well ahead of the deadline."
She added: "These kinds of updates happen more often than people realise. As new scientific evidence becomes available, regulations are reviewed and brands adapt their formulas. It's one of the ways the beauty industry continues to raise standards."
Advice for Consumers
Louise recommends choosing a reputable salon that uses recognised professional products and follows good hygiene practices. "If you're ever unsure about the products being used, don't be afraid to ask. A professional nail technician should be happy to explain which brands they use and answer any questions you have. I'd be far more concerned about unregulated products bought online or treatments carried out by unqualified technicians than established salons updating their products to meet the latest regulations."
Although the risks in everyday nail use are considered low, the ban reflects a precautionary approach to protect professionals, customers, and future generations. The UK regulations align with the EU decision, ensuring cosmetic formulas are TPO-free from August 15, 2026.
