
Europe bans chemical used in some gel nail polishes
UC expert featured in CNN article discussing alleged 'reproductive toxicant'
The University of Cincinnati's Kelly Dobos spoke with CNN about the European Union prohibiting the use of a chemical ingredient called trimethylbenzoyl diphenylphosphine oxide (TPO) in some gel nail polishes and other cosmetic products due to it allegedly being a "reproductive toxicant."
TPO works as a photoinitiator, meaning it responds to light. In gel nail polish, it helps the polish set under ultraviolet or UV light.
“It starts that reaction that gets it to cure,” said Kelly Dobos, a cosmetic chemist and adjunct instructor at UC's James L. Winkle College of Pharmacy, told CNN.
The EU's concerns stem from animal study results, but Dobos said people who enjoy gel manicures do not need to panic.
“What’s important to keep in mind is that those end points and those studies were from animal-feeding studies. When you’re thinking about nail polish, that’s clearly not how we’re exposed to TPO. You’re not eating the nail polish. So, it’s a different route of exposure," Dobos said.
"In my opinion, these materials, in the way that they are used, are very safe, but there are alternatives,” she continued.
Featured photo at top of a person getting a manicure. Photo/nazar_ab/iStock Photo.
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