Which sunscreen is best?

This month, my dermatology colleagues at Northwestern University published an article in JAMA Dermatology (JAMA Dermatol. Published online July 06, 2016. doi:.10.1001/jamadermatol.2016.2344) in which they looked at the most popular sunscreens purchased on Amazon.  They found that 40% did not meet the minimal standards set by the American Academy of Dermatology.  Prices varied 3000% ($0.68 an…

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