The best sunscreens for dark skin protect all skin tones without leaving a white cast. With dark skin, it can be tricky to find an SPF that doesn’t leave a chalky, pasty layer. But it’s crucial for people with dark complexions to protect their skin every day. Florida board-certified dermatologist Dr. Heather Woolery-Lloyd explains that sunscreen “helps prevent UV damage from the sun, protect against skin cancers and prevent photoaging.” So sunscreen not only protects against serious health concerns, but also defends against signs of aging.