Muscle Recover + Electrolytes. Naturally & Artificially Flavored. 0 Calories 0 g Carb 0 g Sugar. XTEND. The Official Recovery Brand of Champions. Faster recovery is the key to better results. For over 10 years, XTEND has been making the best recovery products in the world. Powered by 7 grams of branched-chain amino acids (BCAAs), which have been clinically shown to support muscle recovery and growth. XTEND Original also contains hydrating electrolytes and additional performance ingredients to help you refuel, repair and recover. Try all the sugarfree, mouthwatering flavors of XTEND to support your fitness goals. When to Take XTEND For Best Results:. Pre workout XTEND Energy. Intra workout XTEND Original. Post workout XTEND Pro. Combine with any XTEND branded product every day, even on rest days, to help maximize your recovery.