Citrulline Malate improves training intensity, endurance and speed of recovery. It performs this through 5 main functions. It increases blood Arginine levels (gram for gram at double the level of Arginine). Increases endothelial Nitric Oxide (NO) levels thereby improving vascular function and blood flow. Improves kidney bicarbonate reabsorption providing a powerful buffer against increasing muscle acidification during intense training. Detoxifies fatigued muscle tissue by removing ammonia (a toxin that can increase 3-fold during intense training). Rapidly replenishes PCr (phospho-creatine) stores, PCr is a key storage of energy muscles tap into. Aside from assisting with delivery and absorption, the Malate has a critical function in the TCA (or Krebs) cycle that produces energy within the mitochondria. Specific research has shown a 34 per cent increase in the rate of oxidative ATP, a 20 per cent increase in post-exercise phosphocreatine recovery and a significant reduction in the sensation of fatigue. It increases growth hormone, optimizes BCAA utilization during workouts, elevates muscle protein and creatine synthesis and improves recovery.