DESC: Nail, Hair and Skin Connection A rich nutrient source for optimum nail, hair&skin health, this formula works in 3 targeted ways by providing nutritive support, with key B vitamins, plus biotin, shown to increase nail thickness and hair health*. Sulfur-bearing ingredients, such as MSM, to support protein synthesis and the structural integrity of connective tissues*; and an exclusive herbal blend that detoxifies the liver, builds the blood and provides naturally occuring minerals.