Amazon.com reviews have become the indispensable buying guide for all sorts of products for busy Americans who either don’t have time to trek to a retail store or just can’t be bothered. We scrutinize them to figure out which movies to watch, which toasters do the bagel setting right and which toddler booties hold up best.
Given that the marketplace has led you in the right direction with so many other consumer products, you might be wondering whether it’s a good place to read up on the sunscreen you’ve been meaning to buy as summer kicks into high gear. The answer, according to a study published Wednesday by Shuai Xu of Northwestern University's Feinberg School of Medicine, is yes and no.
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