EWG’s (Environmental Working Group) 2017 Guide to Sunscreens is arranged by scientists that put together a list of the products that will give consumers the biggest bang for their buck, according to the organization. “We compiled this list using the Sunscreen Guide’s price range feature for green-rated products, which provides a relative rating of a product’ suggested retail price per fluid ounce. We then checked the in-store availability of the least expensive products throu...