Beware of oxybenzone. This chemical is an active ingredient in most commercial sunscreens, but it irritates skin and creates cell-damaging free radicals when exposed to UV rays. Preliminary research also suggests it may lower sperm count and raise cancer risk. Instead, look for sunscreens with avobenzone, which works like oxybenzone but doesn't pose known health concerns.
Credit: Caroline von Tuempling / 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
The Interpreters We Left Behind
The Rise of Cyclocross
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