Science Friday Science Friday

FDA approves a well-known sunscreen ingredient—finally

Jun 22, 2026 · 12m

Summary

Science Friday discusses the FDA’s approval of Bematrizinol, the first new U.S. sunscreen ingredient in over two decades. Chemistry PhD candidate AJ Adai explains its superior broad-spectrum protection and safety profile compared to existing filters. Health journalist Michael Scaturo details the regulatory hurdles, noting that classifying sunscreen as a drug caused significant delays and costs. The episode also addresses public confusion regarding ingredient safety and the upcoming availability of BEMT products.

Topics discussed

Sponsors: Con Edison, Progressive, and Alienware Intro: FDA approves new sunscreen ingredient BEMT BEMT: First new organic UV filter in 20 years UVA vs UVB protection and BEMT's safety profile Why mineral sunscreens leave a white cast Why FDA approval took so long: Cost and animal testing Sunscreen regulated as drugs due to toxicity concerns The 'Not GRASE' controversy and public skepticism Global differences and when BEMT sunscreens arrive
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