Optimum Nutrition Threshold, Muscle Fatigue Fighter, 75 Servings

Optimum Nutrition Threshold 1.6 g Beta alanine. 75 servings (9.24 oz). The Bigger Picture of Muscle Stamina: During high-intensity training, glucose and glycogen are broken down for energy. In the process, hydrogen ions (H+) are also produced within the muscles. H+ accumulation causes the muscles to become more acidic and ultimately leads to fatigue. Packed with Beta-Alanine, Histidine, and Phosphates our Threshold formula is designed to help boost your intramuscular buffering system so that you can train harder, longer.