Sunscreen tip: Which is better, SPF 30 or SPF 50? Both come off if you are sweating, swimming, or touching your skin. These three conditions cover any moment for any person during any day. Bottom line . . . The best sunscreen is the one that you reapply! Don’t spend money on higher SPF sunscreens. Find one that you are willing to use be it heavy, light, greasy or not.