Scivation XTEND most-advanced BCAA drink mix.It has glutamine and citrulline malate. Plus, with a proprietary blend of hydration-inducing electrolytes, XTEND is a sugar-free way to help anyone grind through a grueling gym session. An athletes, champion fighters, elite bodybuilders, and weight training enthusiasts of varying types all use Scivation XTEND during their workouts in order to train longer, harder, and with more intensity.