Nutrabay Pure 100% Citrulline Malate Powder - Boosts Nitric Oxide Pre Workout supplement for Men & Women - 250g UnflavouredCitrulline Malate is an amino acid compound which has got some attention due to its potential to delay the onset of fatigue during intense bouts of training. This compound is an amino acid which is composed of citrulline and ester of malic acid (malate). Citrulline Malate assists in the clearance of ammonia from the blood and muscle tissue reducing the onset of fatigue and has been shown to reduce post-exercise muscle soreness following high intensity resistance exercise.Nutrabay Pure 100% L-Arginine Powder - Muscle Building Amino Acid Faster Recovery Reduce Fatigue & Build Endurance Pre Workout supplement for Men & Women - 250g UnflavouredWhat is Arginine HCL? Arginine also called l-arginine is an amino acid found in meat poultry and dairy products. When metabolized arginine converts into a chemical called nitric oxide which helps blood vessels dilate and increases blood flow. It also stimulates insulin release removes toxic ammonia from the blood boosts immunity and heart health and reduces inflammation.