If you're an athlete who wants to get the best from your workout than Extreme NOS Pumped should be your first choice in sports supplement. Extreme NOS Pumped contains Arginine from L-Arginine and L-Arginine Alpha Ketoglutamate. Arginine is an amino acid involved in the formation of nitric oxide. During workouts, nitric oxide production can help support circulation and muscles. This Extreme NOS Pumped Complex is now further enhanced with Citrulline Malate as it complements the actions of Arginine in the body. Extreme NOS Pumped also contains Glycerin, which may help support body hydration, and Caffeine to promote energy flow. Dietary intake is important for plasma Arginine levels and daily supplementation can help, especially before exercise.