
Europe Bans Gel Nail Polish — Why the U.S. Hasn’t
In September 2025, the European Union (EU) banned certain gel nail polishes after safety concerns over an ingredient called TPO (trimethylbenzoyl diphenylphosphine oxide). Animal studies have linked TPO to cancer and fertility issues, and European regulators acted quickly to protect consumers. But in the United States, gel polishes containing TPO remain legal and widely available. This difference highlights two