C4 Ultimate Energy®

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Life requires energy. C4 Ultimate Energy helps you power through it all with bold flavor, sharp focus, and zero sugar or artificial colors. When the moment calls for more, it deliv ers 300mg of caffeine for an extra boost that keeps you going — and then some. ANY TIME ENERGY: Elevate energy and performance with 300mg of caffeine*. LOCKED IN FOCUS: Stay sharp, alert, and ready for anything*. UNRIVALED FLAVORS: Enjoy a variety of flavors guilt-free with zero sugar or artificial colors. KEY NUTRIENTS: Loaded with Vitamin B12 to support energy metabolism.* Show more