Description Scivation XTEND BCAA is the original and industry-leading intra-workout catalyst, scientifically formulated to extend your performance, recovery, and muscle growth potential during training. Combining a unique ratio of BCAAs (2:1:1), Glutamine, Citrulline Malate, and Vitamin B6, Scivation XTEND continues to set the standard in the sports nutrition category. This product is also caffeine-free and can be taken before or after workout.