A significant shift in the UK’s nail care industry is underway as a new regulation banning the use of a contentious ingredient in gel nail polishes has come into effect. Trimethylbenzoyl diphenylphosphine oxide (TPO), a chemical used to enhance the durability of gel manicures, is now prohibited across England, Wales, and Scotland due to potential health risks. This decision signals a growing prioritisation of public health within cosmetic regulations, although it raises questions about the future of gel manicures in British salons.
The Ban Explained
The recent regulation, which takes aim at TPO, is primarily concerned with the ingredient’s properties as a photoinitiator. This allows gel polish to cure effectively under ultraviolet (UV) light, resulting in a longer-lasting and more resilient manicure. While the ban officially commenced on Saturday, manufacturers were already restricted from introducing new products containing TPO due to its previous prohibition by the European Union, effective since September 1, 2025.
Salons, however, have a grace period until Valentine’s Day 2027 to exhaust their existing stock of TPO-containing products. This transitional phase means that clients can still receive gel manicures until the current supplies run out, after which salons will need to turn to TPO-free alternatives.
Health Implications of TPO
The decision to ban TPO stems from animal studies that have linked the chemical to potential long-term fertility issues and reproductive harm. Caroline Rainsford, Director of Science at The Cosmetic, Toiletry and Perfumery Association (CTPA), provided insight into the rationale behind the ban. She emphasised that the concerns regarding TPO’s safety are based on its hazardous properties under extreme exposure conditions, which do not reflect typical usage in cosmetic products. Notably, the quantities of TPO in nail products are significantly lower than those shown to have adverse effects.
Nonetheless, the move highlights an increasing vigilance regarding the safety of cosmetic ingredients and the proactive steps being taken to mitigate potential risks to consumers.
Alternatives to TPO
With TPO now off the table, nail technicians and salon owners are exploring TPO-free gel options that are already available on the market. It’s worth noting that traditional air-dried nail polishes have not been affected by this ban and remain a viable alternative for customers who may prefer to avoid gel treatments altogether. Many salons are likely to adapt by offering these safer alternatives, which may include different compounds within the same chemical family, albeit with varying safety profiles.
The transition may also encourage innovation within the industry, as manufacturers are prompted to develop new formulations that ensure both aesthetic appeal and safety for consumers.
Industry Response and Future Outlook
The nail care industry has expressed mixed feelings about the ban. While some view it as a necessary step toward prioritising consumer health, others worry about the potential loss of popular services in salons. The gradual phase-out of TPO-containing products will necessitate a period of adjustment for both salons and their clients.
As the industry evolves, there is an opportunity for enhanced consumer education regarding the safety of cosmetic products. Salons could play a pivotal role in informing clients about the changes and the benefits of the new, safer alternatives.
Why it Matters
This regulatory change is a crucial development in the intersection of public health and cosmetic safety. By prioritising consumer well-being, the UK is setting a precedent that could influence similar regulations worldwide. As awareness of potential health risks associated with cosmetic ingredients increases, both consumers and industry stakeholders must adapt to ensure that beauty treatments remain safe and enjoyable. This ban not only reflects a commitment to public health but also highlights the need for continuous scrutiny of the products we use daily.