7G BCAAs – 2:1:1 Ratio Designed By Nature, Proven by Research Scivation XTEND is the best-selling, most-advanced BCAA drink mix on the planet. At the heart of XTEND is 7g of BCAAs — in the nature-designed and research-proven 2:1:1 ratio — plus glutamine and citrulline malate. Plus, with a proprietary blend of hydration-inducing electrolytes, XTEND…