Korean sunscreen is all the rage. If you’re American, you might be out of luck.
“In Korea, sunscreens are regulated as functional cosmetics versus the US where they’re regulated as over-the-counter drugs. The Korean Ministry of Food & Drug Safety (MFDS) is the regulatory authority, similar to the FDA, that’s responsible for creating and overseeing the sunscreen approval process. The approval process includes submitting clinical safety and efficacy documentation to the MFDS, which is far simpler than what the US requires. The testing and documentation is similar to what’s required in other global regions but the process is more efficient and can be done quickly.
In contrast, because the FDA treats sunscreen like a drug (and not a cosmetic), they have some of the most stringent requirements in the world, which requires extensive testing. As a result, the FDA in the United States has not greenlit any new UV filters since 1999. Notably, the FDA has recently mandated supplementary safety data for all previously approved chemical UV filters to uphold their market presence in the US.”
https://www.vox.com/culture/354545/korean-sunscreen-is-all-the-rage-if-youre-american-you-might-be-out-of-luck