Helps increase the hair’s resistance to external and internal injury. Helps prevent hair loss by reducing the binding of DHT (Dihydrotestosterone) to testosterone receptor sites in the skin and hair follicle, thereby inhibiting DHT’s harmful effects. Works to prevent hair loss by providing an abundant source of structural materials (sulfur-containing amino acids and silicon) used in the generation of a hair as well as by inhibiting 5-alpha-reductase’s synthesis of DHT (Dihydrotestosterone). Constitutes the hair growth component to stimulate the growth of new healthy hair.