Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, commonly known as TPO, is a photoinitiator. Under ultraviolet (UV) light, it releases radicals that can go on to facilitate polymerization reactions.

Many people love gel nail polish for its durability and shiny gloss, but a new ban in Europe may have left mani-pedi devotees with some not-so-pretty concerns. On Sept. 1, the European Union banned ...

Beauty lovers across Europe are facing a major change to their nail care routines as the European Union implements new restrictions that could reshape the gel manicure industry worldwide. The sweeping ...