Dietary Supplement. 100% Pure pharmaceutical grade. Clinically proven; Muscle recovery; Fast absorption. L-Glutamine, the free amino acid, is the single most abundant amino acid present in skeletal muscle. L-Glutamine may support muscle tissue by limiting the degradation of protein through nitrogen retention, glycogen synthesis, and protein synthesis. L-Glutamine may also assist in the fueling and detoxifying of the brain. Thus, L-Glutamine has been dubbed the thinkers amino. L-Glutamine's muscle and brain tissue supporting qualities have made L-Glutamine an invaluable addition to an athlete's regimen! Laboratory tested for quality and purity. (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.)