No-holds-barred energy from 300mg of caffeine alongside clinically studied ingredients for endurance and hydration. With, zero sugar, carbs, or calories, and no artificial colors or flavors, C4 Ultimate is the ultimate energy drink to overdrive performance. Every can of C4 Ultimate Carbonated is loaded with incredible flavors and the perfect amount of carbonation to kick-start your taste buds.

ULTIMATE MUSCULAR ENDURANCE — Strengthen your muscles through CarnoSyn® Beta-Alanine, which helps combat muscular fatigue and enhances muscular endurance. Studies have shown benefits of CarnoSyn (R) beta-alanine to be correlated with cumulative use.
CELLULAR HYDRATION — Naturally-derived betaine from beets, BetaPower® Betaine helps maintain cellular hydration within the muscle during periods of intense stress.
INCREDIBLE FLAVOR — Incredible naturally sweetened C4 taste with zero sugar.