Photo by Nataliya Melnychuk via Unsplash Regular use of a sunscreen may do more than deflect ultraviolet (UV) rays—it could help preserve the molecular and epigenetic stability of human skin, according to new research. In a study published in Scientific Reports , Agata Bienkowska and colleagues found that consistent sunscreen application can prevent many of the fundamental biological disruptions caused by repeated UV exposure. The findings build on decades of evidence linkin