Why Gel Nail Polish Used by Millions is Now Banned in the EU

What Was Once Approved for Professional Gels at Low Levels Is Now Banned Outright Under the Cosmetics Regulation The European Union (EU) has banned Trimethylbenzoyl Diphenylphosphine Oxide (TPO) in cosmetics, including gel nail polishes. While the regulation only applies in Europe, the decision could influence how global nail brands formulate products moving forward. Here’s what salon professionals should know. Why Is the EU Banning Gel Nail Polish Ingredients? The ban comes from Commission Regulation (EU) 2025/877, a new EU regulation that updates the Cosmetics Law. The ingredient at the center, TPO, is widely used in gel nail products...