Shield your skin with the best sunscreens from CR’s tests. We check to see how well sunscreens protect against the types of rays that cause sunburn, skin cancer, and skin aging—and whether you can trust the SPF number on the label. Use our reviews, ratings, and buying guide to help you choose the most effective sunscreens for babies, kids, and adults.

Sunscreen Ratings

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Sunscreens Buying Guide

Our tests of more than 80 sunscreen lotions, sprays, sticks, and lip balms show that you can't always rely on the sun protection factor (SPF). That number is a measure of how well a sunscreen protects against sunburn, which is mostly the result of exposure to the sun's UVB rays. We also test for protection against ultraviolet A rays, which tan and age skin, and also, along with UVB rays, contribute to skin cancer. We found 10 sunscreens that did well enough against both UVA and UVB to recommend.