RSP Nutrition Fast Fuel is an elite pre-workout formula that provides clean energy, and optimizes endurance, hydration and muscle recovery. Each serving of Fast Fuel contains 250mg of natural caffeine, 5g of essential amino acids, 6 different electrolytes, 1000mg of Beta-Alanine & Creatine, and 500mg of L-Arginine.  These ingredients work together to boost your performance, help you push your limits, and crush your goals. Fast Fuel flavors are inspired by iconic destinations around the world where you can find RSP.