USDA: High levels of sunscreen ingredients end up in the bloodstream Fri, 05/10/2019 - 12:00am The active ingredients of commonly-used sunscreens end up in the bloodstream at much higher levels than current U.S. guidelines from ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about USDA: High levels of sunscreen ingredients end up in the bloodstream