It’s a melaninlike substance that scientists can tune to different degrees of UV protection.
Living on Earth’s Susan Shepherd reports on the all-natural sunscreen secreted by the hippopotamus.
Living on Earth’s Diane Toomey reports on the anti-cancer effects of an ingredient in tea.
Living on Earth’s Maggie Villiger reports on SoyScreen, a sunscreen made from soybean oil and bran.
Living on Earth’s Cynthia Graber reports that deep sea bacteria can help make sunscreen more effective.
