Sun Day School: Skin Cancer Protection Tips

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The FDA has mandated that, effective June 18, every sunscreen, as well as any makeup or moisturizer that contains it, must state its degree of SPF, its water-resistance (40 or 80 minutes), and whether or not it's broad-spectrum (meaning it provides both UVA and UVB protection). To get the most out of your bottle, Arielle Kauvar, MD, a dermatologist in New York City, suggests choosing one with an SPF of at least 30. Because sweat counts as water, use water-resistant sunscreen even when you're not hitting the pool.