Superhuman performance. Betapower. Carnosyn. No artificial colors. Awaken your super. Tap into ultimate energy and superhuman performance of C4 ultimate to dominate your work, workout and life. Carnosyn: This patented form of beta-alanine has been clinically shown to fight fatigue and improve muscular endurance. Within minutes of drinking C4, you may feel a tingling sensation from beta-alanine, signaling that your body is primed for superhuman performance (Studies have shown performance benefits of beta-alanine to be correlated with muscle carnosine concentrations, which increase with cumulative use). Betapower: This clinically studied, natural form of betaine is derived from beets, a powerful superfood that supports hydration and physical performance. $10 Thirsty for more? join c4 rewards & earn $10 credit today! C4rewards.com.