Energy Complex: Methylxanthines - Natural compounds that provide instant energy and mental focus to help jump-start your workouts. Nitrous Malate - A superior form of arginine designed to engorge your muscles with blood, improve nutrient delivery to muscle cells, and sustain whole body pumps. Taurine - Powerful muscle cell-volumizer which also aids in firing nerve impulses into your muscles. N-Acetyl-L-Glutamine (NAG) - A superior form of glutamine that facilitates increased muscle volume, glycogen storage (muscle fuel stores), and GH (growth hormone) production