C4 Ultimate Energy Drink Zero Sugar 16oz Pack of 12 — 300mg Caffeine, Vitamin B12

C4 Ultimate Energy is a zero-sugar 16oz energy drink delivering a 300mg caffeine boost with B12 and no artificial colors for focused, long-lasting energy.

Whether you need to power through late work sessions, long workouts, or busy days on the go, C4 Ultimate Energy provides a concentrated, flavor-forward option without added sugar. Reformulated packaging offers a refreshed look while the formula combines high caffeine, vitamin B12, and flavor variety to help you feel alert and energized when the moment demands more.

How strong is the caffeine kick and when should I expect it to work?

Each 16oz can contains 300mg of caffeine — a significant dose intended to deliver a rapid, robust energy lift. Effects typically appear within 20–45 minutes depending on personal tolerance and should be considered a high-caffeine option compared with standard energy drinks.

• 300mg caffeine per 16oz can for an intense boost*
• Fast onset commonly within 20–45 minutes
• Zero sugar to avoid a heavy crash from added sugars
• Best used by experienced caffeine consumers or as recommended

Can C4 Ultimate Energy support focus without extra calories?

C4 Ultimate pairs high caffeine with vitamin B12 and other ingredients designed for mental clarity while staying calorie-free from sugar. The zero-sugar formula keeps flavor bold without the extra calories that come from sweeteners like sugar or syrup.

• Zero sugar and no artificial colors for cleaner nutrition labels
• Vitamin B12 included to support energy metabolism*
• Flavors crafted to be bold without added sugars
• Pairs well with hydration and balanced meals for best results

What flavors and packaging should I expect with the new look?

The product comes in a redesigned 16oz can to reflect a smoother, more modern brand presentation while preserving the same formula. You’ll find a variety of bold flavors across the pack of 12, each delivered in high-impact cans that stand out in a fridge or gym bag.

• Redesigned packaging for a refreshed shelf presence
• Available in multiple bold flavors (variety depends on purchase)
• Pack of 12 convenient 16oz cans for stocking up
• Compact tall-can format fits most cup holders and gym bags

How should I use C4 Ultimate Energy safely?

Because each can contains a high level of caffeine, follow personal tolerance guidelines and avoid combining with other high-caffeine products. Keep liquids balanced by drinking water, and consult product labeling for specific warnings and usage notes.

• Do not exceed recommended daily caffeine limits for your health status
• Avoid mixing with alcohol or other stimulants
• Store cans in a cool, dry place and follow label instructions
• Not intended for children, pregnant or nursing individuals, or those sensitive to caffeine

Who is this for? C4 Ultimate Energy is geared toward adults who want a powerful, sugar-free energy option—athletes during intense training sessions, students powering through study marathons, busy professionals facing long shifts, and anyone already familiar with higher caffeine levels. If you prioritize bold flavors, a high-caffeine formula, and a calorie-conscious profile, C4 Ultimate provides a ready-to-drink solution in a 12-can pack suitable for home, gym, or work.

*Statements reflect ingredient contributions; individual responses vary. Follow product label for all safety and usage information.

Ingredients

Carbonated Water, Malic Acid, BetaPower® Betaine Anhydrous, Citric Acid, CarnoSyn® Beta-Alanine, Caffeine Anhydrous, Potassium Benzoate (preservative), Sodium Citrate, Sucralose, Acesulfame Potassium, Natural & Artificial Flavors, Cyanocobalamin (Vitamin B12).