Dr. Nigma Talib, a leading naturopathic doctor based in Los Angeles with an A-list celebrity clientele, can tell what you're eating, and why you're aging, just by looking at you. In this riveting interview with Skinfix founder Amy Risley, Dr. Talib shares the diagnostic secrets behind her "four faces of aging" and offers a host of tips on diet, supplements, and gut health, which can all brighten and strengthen your skin.