When Sun Bum hits 30% off , it’s not a casual add-to-cart moment. You best believe it’s a full-on drop everything and run situation. I’ve tried nearly every SPF under the sun—from body to face sunscreen—and I’m lathering the best ones on all day, so trust me when I say it takes a lot to impress me. Some are too greasy, some smell like a pool locker room and some just sit on your skin like an unwelcome guest. But Sum Bum gets it. Let’s start with the obvious: SPF 50 . Dermatologists usually