The Best and Worst Sunscreens

See which products will prevent your skin from looking lobster-like all summer long

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Whether we like it or not, sunscreen is a must for all of us. And according to Heidi Waldorf, M.D. of Waldorf Dermatology & Laser Associates in Nanuet, NY, we need "an SPF of at least a 15 daily." For prolonged sun exposure, "I recommend a higher SPF (30 or above) and a water resistant formulation," she says. She also suggests choosing a sunscreen containing titanium dioxide, zinc oxide, avobenzone, or mexoryl as its active ingredient.

The amount of sunscreen you apply is also vital. Waldorf recommends "a shot glass full of sunscreen" for the average adult and reapplying "every one to two hours while outdoors." We'll admit that doesn't sound like a fun way to spend your summer, but with these reader-approved products, maybe it won't seem like such a chore.