Enduraflex  :   While citrulline is a sort of amino acid malate is a salt compound. Studies have proven that extra citrulline increases the percentage of arginine inside the blood, which in flip produces ma ore nitric oxide. Enduraflex Reviews  During workout routines, nitric oxide increases the flow of blood into the muscle tissues and thereby allowing longer workouts. In this complement, malate is sure with citrulline to provide it extra stability. http://www.healthywelness.com/enduraflex-canada/