A new study by the U.S. Centers for Disease Control (CDC) reveals that 97% of Americans are contaminated with a widely-used sunscreen ingredient called oxybenzone that has been linked to allergies, hormone disruption, and cell damage. A companion study published just one day earlier revealed that this chemical is linked to low birth weight in baby girls whose mothers are exposed during pregnancy. Oxybenzone is also a penetration enhancer, a chemical that helps other chemicals penetrate the skin. Environmental Working Group identified nearly 600 sunscreens sold in the U.S. that contain oxybenzone, including products by Hawaiian Tropic, Coppertone, and Banana...