70 Years of ExcellenceExtreme PumpL-Arginine is an amino acid that plays an important role in several important pathways, including the synthesis of proteins, the production of creatine, and the synthesis of nitric oxide, a secondary messenger involved in blood flow. An increase in blood flow can help bring nutrients and oxygen to the muscle during exercise nourishing muscle for continued performance as well as growth during exercise recovery.DisclaimerThese statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. • Supplement FactsServing Size: 3 CapsulesServings per Container: 30Amount Per Serving % Daily ValueL-Arginine 1000 mg Other Ingredients: Gelatin, microcrystalline cellulose, silicone dioxide, magnesium stearate.