9. Your hands
Hands are often the first location where aging becomes visually apparent, and UV exposure is typically to blame. “Whatever you’re doing to prevent aging on your face– and sunscreen is a part of that–do the same thing for your hands,” Dr. Carroll says. Always cover the skin on the palms and backs of your hands with sunscreen, and remember to reapply it through the day. Hand washing will remove the product’s protective qualities, leaving your hands exposed to sun damage and possibly melanoma or squamous cell carcinoma.