To test SPF effectiveness, researchers applied sunscreen to test subjects’ backs and then had them soak in water for either 40 or 80 minutes, depending on the product’s water-resistance claim.

If you've wandered the sunscreen aisle lately, you know it's become something between a beauty boutique and a science fair.

A top sunscreen lotion from this year's tests was Coppertone Water Babies Lotion SPF 50, which outperformed its labeled SPF in Consumer Reports' testing. But it might not be for everyone.

Sunscreen is key to protecting your skin from the sun’s harmful UV rays. Before you hit the beach, pool or ballpark this ...

Amazon Coppertone SPORT Sunscreen SPF 50 Lotion, Water Resistant Sunscreen ...

We've tested and reviewed products since 1936. Read CR's review of the Coppertone Every Tone Sunscreen Lotion SPF 50 sunscreen to find out if it's worth it.