C4 Extreme Energy is made for your passion, steady drive and unbroken commitment to your workouts.

If you find yourself drinking cup after cup of coffee throughout the day and built your caffeine tolerance above the rest, C4 Extreme Energy is made for you. Its formula features twice as much caffeine, more focus and more endurance than C4 Original.

We know that for some, just a little bit of energy isn’t enough.

Contains CarnoSyn® Beta Alanine, an amino acid, which converts to a compound in your body called carnosine. It is the only patented and clinically studied form of beta-alanine that has been shown to support muscular endurance.