Dietary supplement. Scientifically advanced. Xtend is a precise, scientific blend of Energy Aminos consisting of the proven 2:1:1 ratio of branched chain amino acids (L-Leucine, L-Isoleucine and L-Valine), Glutamine, Citrulline Malate, and Vitamin B6 that will give you the energy you need to maximize your training while enhancing recovery at the same time. The advanced components in Xtend have been scientifically proven to help: Speed recovery; Enhance ATP production and promote cell volumization; Reduce muscle breakdown and balance cortisol levels; Avoid fatigue by blocking entry of fatigue-inducing tryptophan into the brain; Support protein synthesis (muscle hypertrophy), immune and digestive health; Promote vasodilatation which can lead to better assimilation and absorption of protein; Elevate growth hormone levels. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.) Made in USA.