Xtreme Power & Focus Complex, multi-complex improving the psychophysical exercise capacity postponing fatigue in time (caffeine, taurine, yerba mate), improving the oxygen metabolism (oxygenation and improvement of aerobic capacity and endurance), intensifying thermogenesis (yerba mate), which supports insulin metabolism ( taurine), which is involved in the synthesis of the neurotransmitter acetylcholine (choline), and the synthesis of thyroid hormone catecholamine (tyrosine). Xtreme Power & Focus Complex is a component of a multicomponent supplement Napalm by Fitness Authority, available at www.muscle-zone.pl