Nitric Oxide boosters are probably the biggest innovation in bodybuilding and sports performance supplements since the introduction of creatine. Products like No Xplode, Methyl Efx, Nano Vapor, Super Pump 250, Altered State, nano x9, and more are favorites among many serious athletes today. Nitric oxide boosters allow for more oxygen to be produced and there help increase endurance and allow for better pumps. The longer the pump, the longer blood can stay in a muscle group to help begin repairing the tissue that has been broken down. Most nitric oxide boosters work by expanding the veins to allow more blood flow which in turn helps to give you a better pump. This affect wears off after prolonged use, therefore it is recommended to cycle on and off products like No xplode, methyl efx, nano vapor, altered state.