How UV radiation damages skin, and how sunscreen protects against cancer and wrinkles
ABCAs the last weeks of summer melt into autumn, you might be tempted to leave sunscreen out of your morning skincare routine. For decades now, we've known sunscreen dramatically lowers a person's risk of developing skin cancer, with some of the first evidence coming from the Sunshine State — Queensland. Over our lifetime, cumulative DNA damage from UVB and UVA means your likelihood of developing skin cancer "is a numbers game", Professor Whiteman says. "The longer you live in a high-UV environment like Australia, if you have a particularly susceptible skin type and you don't protect yourself, eventually you'll damage enough cells to lead to skin cancer." "They contain zinc oxide or titanium dioxide particulate matter that sits on the skin's surface, where they work … by blocking, scattering and reflecting UV radiation to prevent skin damage."