It's less important which you use: Find a fave, use always, and use lots.

FOR KEEPING YOUR COOLBanana Boat Sport Performance CoolZone ($10, 6 ounces, This creamy formula's instant cooling effect encourages more frequent application in the hot summer sun. (All of the choices here are sweat- and water-resistant for up to 80 minutes.)

FOR SENSITIVE TYPESAveeno Natural Protection Lotion ($10, 3 ounces, This lotion uses natural mineral sunscreens (titanium dioxide and zinc oxide) in lieu of avobenzone, a synthetic sunblock agent found in most sunscreens that may cause irritation on sensitive skin.

FOR FACES ONLYAustralian Gold Sheer Coverage Faces ($10.50, 3 ounces, Designed for facial skin (so it won't cause irritation or breakouts on this more delicate area), this oil-free formula is quickly absorbed and leaves behind a matte finish, so it goes undetected under makeup.

FOR THE BUDGET-MINDEDNo-Ad Sunscreen Lotion ($10, 16 ounces, It may lack some of the qualities of higher-end lotions (sheer application, fancy fragrances), but you get three to five times the amount of lotion for the same price as most other brands.Photos by Randy Mayor