Always buy broad spectrum. Products labeled broad spectrum block UVA rays – the type that cause wrinkles and skin cancer – as well as UVB, which can also cause cancer and burning. Those that aren't broad spectrum cannot claim to protect against skin cancer or early aging.
Credit: Jessica Abad de Gail / Getty Images
The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
Duke Lacrosse and the Fog of Scandal
How Thailand's Most Notorious Prison Became a Fight Club
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