How it works Containing over 20 University tested ingredients, in high-potency dosages, 50 Calibre used to be formulated by our expert R & D team after evaluating and considering every conceivable natural component that has been studied to beef up physical performance. Grenade .50 Calibre contains large dosages of Citrulline Malate (the most proven NO-boosting amino acid), high nitrate Beta Vulgaris, high-dose, flavanol-rich Theobroma Cocao and a large number of other effective ingredients that toughen muscular blood go with the flow. Of course, no pre-workout product would be complete without beta alanine, caffeine and creatine, as they are backed by thousands of scientific studies in exercise performance. Additionally, bicarbonate electrolytes are added to withstand the energy-sapping effects of lactic acid (lactate) and BCAAs are added for anti-catabolic toughen. So the ingredients in .50 Calibre, in conjunction with other botanicals and essential micronutrients combine to constitute what we consider is the most innovative and effective pre workout, nitric oxide product available in the marketplace today – 50 Calibre, the ultimate pre workout ammunition for better exercise performance.