Xtend is a precise, scientific blend of Energy Aminos consisting of the surmised 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 promoting recovery at the same time.* The advanced components in Xtend have been scientifically suggested to help speed recovery and enhance ATP production and promote cell volumization.* Avoid fatigue by blocking entry of fatigue-inducing tryptophan into the brain.* Support protein synthesis, immune function and digestive health.* Promote vasodilation which can lead to better assimilation and absorption of protein.* Elevate growth hormone levels.* Sounds good!