4 things to know about the new sunscreen ingredient the FDA approved

A sunscreen ingredient used in Europe and Asia that blocks UVA and UVB rays has been approved for use in the U.S. mihailomilovanovic/iStockphoto/Getty Images hide caption toggle caption mihailomilovanovic/iStockphoto/Getty Images For the first time in nearly three decades, the Food and Drug Administration approved a new chemical UV filter for use in sunscreens sold in the U.S. And that has many dermatologists cheering. "This is a very big deal," says Dr. …