Huperzine Rx-Brain is a precisely calibrated nutritional formulation born from leading-edge scientific studies & clinical evaluation. Each tablet provides pure huperzine-A, the active neuronutrient found in the rare species of Chinese moss, Huperzia serrata. Huperzine Rx-Brain source ingredient, club moss, is h&-picked by trained horticultural specialists who select only the best plant specimens for consistent maximum potency. Huperzine Rx-Brain is a neuronutrient whose active ingredient is verified for purity & potency at each stage of production, including: extraction, manufacture, & tableting. Rx-Brain is a unique specialty formula designed for any individual concerned with promoting optimal brain function. One tablet contains Ingredients: Huperzine-A (from Huperzia serrata)50 mcg Di-calcium phosphate, micro-crystalline cellulose, silica, stearic acid & pharmaceutical glaze. These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.