KXR Pre Workout is an advanced formula designed to provide athletes with an unmatched level of energy, endurance, and improved athletic performance. The formula is boosted with 3.2 g of beta-alanine and 400 mg of caffeine, and backed by 150 mg of elevATP! K-XR Pre Workout is formulated to be used with Vasogen Pump Caps, Aminogex BCAA/EAA, and Protolyte 100% Isolate Protein.