What is TPO in Nail Products – and Why Did the EU Ban It?

What is TPO in Nail Products – and Why Did the EU Ban It? The nail industry has been buzzing recently about the European Union’s decision to ban Triphenylphosphine Oxide (TPO) in UV gel polishes. For salon owners, nail technicians, and clients, this raises important questions: What exactly is TPO? Why was it banned? And is the science behind the ban as clear as it seems? Let’s break it down. What is TPO? TPO, short for Triphenylphosphine Oxide, is a photoinitiator commonly used in UV-curable products, including some gel nail polishes. Photoinitiators are ingredients that react when exposed to UV...