Nail Polish: This Banned Substance in the UK Raises Concerns in Africa

TPO, or Trimethylbenzoyl Diphenylphosphine Oxide, is a chemical substance used in some gels and nail polishes, classified as a category 1B reproductive toxin in the European Union. Its ban in cosmetic products was implemented on September 1, 2025, due to concerns about its harmful effects on fertility and fetal development. New restrictions in the UK, effective August 2026, have raised concerns in Kenya and Nigeria.