Product Features | Our most advanced pre-workout, C4 Ultimate is fully loaded with 300mg of caffeine, 6g citrulline malate, 3.2g CarnoSyn Beta-Alanine, and an array of supporting ingredients to deliver the ultimate in explosive energy, pumps, performance, and focus. | C4 Ultimate Shred’s cutting-edge blend of Capsimax Cayenne, Oligonol, clinically studied DygloFit, and Bioperine will help you achieve extreme definition. C4 Ultimate Shred continues to torch calories even after you’re done training! | C4 Ultimate Power builds on the fully loaded explosive energy and performance core of C4 Ultimate with the testosterone-support power of our P6 Testosterone Technology to support energy, pumps, test, strength, and power. | C4 Ultimate Carbonated is fully loaded with 300mg of caffeine, 3.2g CarnoSyn Beta-Alanine, and an array of supporting ingredients to deliver the ultimate in explosive energy, performance, and focus when you're on the go. | |