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The Boston Globe


Sunscreen ratings above 50 questioned

WASHINGTON — Sunbathers this summer will find new sunscreen labels that are designed to make the products more effective and easier to use. But despite the long-awaited changes, many sunscreens continue to carry SPF ratings that some experts consider misleading and potentially dangerous.

A survey of 1,400 products by the Environmental Working Group found that most meet federal rules put in place in December. The Food and Drug Administration banned terms like ‘‘waterproof,’’ which regulators consider misleading, and requires that sunscreens filter out both ultraviolet A and B rays. Previously, some products blocked only UVB rays, which cause most sunburn, while providing little protection against UVA rays, which pose the greatest risk of skin cancer and wrinkles.

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