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.