30 Servings L-Arginine is an amino acid that acts as a vasodilator to open blood vessels resulting in improved blood flow. By improving blood flow, fresh blood and oxygen are sent to the working muscles to increase energy and remove waste. Resulting in improved muscle function, performance, endurance, and recovery. A semi-essential amino acid, L-Arginne is converted to nitric oxide to open blood vessels, improve blood flow, send fresh blood and oxygen to working muscles while simultaneously removing lactic acid build up. Supplementing with 3-6g per day has been shown to improve muscle function, performance, endurance, and recovery.