[Update on photoprotection].

Photoprotection is the primary preventive and therapeutic strategy against photoaging and skin cancer. This review presents the most important new advances in both topical and systemic photoprotection. Starting with innovations in the traditional physical and chemical filtering agents, we go on to discuss the growing number of antioxidants, the novel strategies for repairing light-induced DNA damage, and current research on substances that stimulate melanogenesis. A final section deals with protection against infrared radiation.