Homosalate is a chemical commonly found in sunscreens and several products containing SPF. It’s used in chemical sunscreens because it can absorb ultraviolet (UV) rays, effectively preventing them from reaching your skin. However, in June 2021, the European Commission released a statement deeming homosalate unsafe in concentrations higher than 10%, thus recommending that only 1.4% be used in sun-blocking cosmetics.