Nicholas Perricone, M.D., is the author of three #1 New York Times bestsellers–The Wrinkle Cure, The Perricone Prescription, and The Perricone Promise–as well as The Acne Prescription. He is a board-certified dermatologist, award- winning inventor, research scientist, and internationally renowned anti-aging expert. He is the focus of a series of award-winning PBS specials, and a popular guest on Oprah, Today, and 20/20, among many other programs.