“TPO, or trimethylbenzoyl diphenylphosphine oxide, is a key ingredient found in many gel products, especially top coats,” ...
Many Americans are left asking if their manicures are safe after the European Union moved to ban a popular ingredient. TPO's classification as “carcinogenic, mutagenic, or toxic to reproduction" seems ...
The European Union has banned a key ingredient in gel nail polish, raising concerns that products used in salons in the UK and elsewhere may not be safe. From 1 September 2025, Norway, Switzerland, ...
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