SCIVATION XTEND is the best-selling, most advanced BCAA drink mix on the planet. At its heart are 7g of BCAAs in the nature-designed and research-proven 2:1:1 ratio, plus glutamine and citrulline malate. With a proprietary blend of hydration-inducing electrolytes, XTEND BCAA powder is a sugar-free and carb-free way to help anyone grind through a grueling gym session. World-class athletes, champion fighters, elite bodybuilders, and weight training enthusiasts of varying types all use XTEND during their workouts in order to train longer, harder, and with more intensity.