Avobenzone is an organic UV filter that absorbs sun rays, but it breaks down when exposed to sunlight—reducing its protective power over time and potentially creating irritating byproducts. Researchers have patented multiple methods to make avobenzone more stable so it actually stays effective while you're wearing it, rather than degrading on your skin.

This was a patent review article, meaning the authors analyzed existing patents filed by researchers and companies working on ways to stabilize avobenzone in sunscreen formulations.

Funding not disclosed in abstract