Talk to any dermatologist and they’ll tell you, by all means, wear sunscreen every day. It isn’t just a health essential (it helps prevent skin cancer); it also has aesthetic benefits (like warding off premature wrinkles and sun spots). Wearing sunscreen daily “is truly the single most impactful step anyone can take for their skin health,” says Dr. Shuting Hu, cosmetic chemist, skin biologist and Acaderma founder.