Optimum Hair/Nail Revive features ch-OSA® (choline-stabilized Srthosilicic Acid) a clinically tested product to naturally supports the nourishment of your body’s beauty proteins by activating the enzymes used by collagen-generating cells. This patented choline-stabilization technology prevents polymers from forming and ensures the optimal absorption of OSA (Arthosilicic Acid). Combined with biotin, Optimum Hair/Nail Revive offers even greater support for healthy bone mineral density, bone flexibility, stronger nails, increased hair thickness, and may even help reduce fine lines and wrinkles.