Explosive energy from 150 mg of caffeine. Endurance carnosyn beta alanine. This patented form of beta-alanine has been clinically studied and helps support muscular endurance and fight muscle fatigue, 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). Hydration betapower. This clinically studied, naturally-derived form of betaine, is sourced from sugar-beets and helps support hydration.