C4 Ultimate Energy Drink is Cellucor's tri-stim energy beverage — fueled with 300mg of caffeine, TeaCrine®, and Dynamine® for a combination that hits like it's the first time, every time. Rather than relying entirely on caffeine for a stimulating effect the way most energy drinks do, C4 Ultimate layers in two additional, well-studied, caffeine-free stimulant compounds specifically chosen to extend and smooth the energy curve beyond what caffeine alone provides. Zero sugar, zero calories, and zero artificial dyes. Available in Arctic Snow Cone, Fruit Punch, Orange Cream, Electric Sour Apple, and rotating collaboration flavors including WWE and Wounded Warrior Project editions. Sold as single cans and 12-packs.†
Nutrition Facts — C4 Ultimate Energy Drink (Per 1 Can / 16 fl oz)
Tri-Stim Blend
Caffeine Anhydrous
TeaCrine® (Theacrine) — clinically studied ingredient designed to amplify the effects of caffeine
Dynamine® (Methylliberine) — clinically studied to work with caffeine and TeaCrine for longer-lasting energy
Ingredients
Carbonated Water, Malic Acid, Natural & Artificial Flavors, Taurine, Sodium Citrate, Caffeine Anhydrous, Sucralose, Potassium Benzoate (preservative), Acesulfame Potassium, Niacinamide, Dynamine (Methylliberine), TeaCrine (Theacrine), Cyanocobalamin (Vitamin B12)
Key Nutrients: Potassium, Niacin, Vitamin B12
Flavors: Arctic Snow Cone, Fruit Punch, Orange Cream, Electric Sour Apple, plus WWE (Berry Powerbomb, Ruthless Raspberry) and Wounded Warrior Project collaboration editions
Sold as single 16oz cans and 12-packs
California Prop 65 Warning applies.
Why "Tri-Stim" — Layering Three Compounds Instead of Just Caffeine
Most energy drinks rely entirely on caffeine for their stimulating effect. C4 Ultimate is powered by the high-powered combination of the caffeine-free stimulants TeaCrine and Dynamine, both well-studied and shown to improve energy, focus, and endurance, layered alongside a potent 300mg of caffeine. TeaCrine (Theacrine) is structurally related to caffeine but works through a distinct receptor mechanism, with research suggesting it doesn't produce the same tolerance buildup that pure caffeine can over repeated daily use. Dynamine (Methylliberine) is a fast-acting compound from the same purine alkaloid family, contributing quick-onset energy and mental alertness. Combining all three is designed to extend and smooth the overall energy curve rather than producing a single sharp caffeine spike followed by a crash.†
300mg Caffeine — Where It Lands
At 300mg, C4 Ultimate sits at the higher end of the energy drink category — meaningfully more than C4's own standard Performance Energy line (200mg) and above the amount in most mainstream energy drinks. This is a substantial stimulant dose, roughly equivalent to 3 cups of coffee, and is specifically positioned for those who already have an established caffeine tolerance and want a stronger energy experience than a standard 200mg product provides.†
Taurine — The Supporting Amino Acid
Taurine is included in the formula as a supporting amino acid with documented research on cellular hydration, exercise performance, and combined effects with caffeine — research has found that taurine and caffeine work better together than either alone for improving anaerobic capacity and reaction time, complementing the Tri-Stim energy blend with an additional performance-supportive ingredient.†
Frequently Asked Questions
How is C4 Ultimate different from regular C4 Energy (Performance)?
C4 Ultimate has more caffeine (300mg vs. 200mg) and uses the TeaCrine/Dynamine Tri-Stim blend, while C4 Performance Energy is built around Beta-Alanine, Betaine, and L-Citrulline alongside its 200mg caffeine. Choose Ultimate for maximum stimulant intensity; choose Performance if you specifically want the pump and endurance ingredients.†
Does C4 Ultimate contain sugar?
No — C4 Ultimate is zero sugar and zero calories, sweetened instead with Sucralose and Acesulfame Potassium.†
Is C4 Ultimate appropriate for someone new to energy drinks?
Not ideally — at 300mg caffeine, this is a substantial stimulant dose best suited for those who already have an established caffeine tolerance. Beginners or anyone caffeine-sensitive should consider C4 Performance Energy (200mg) or a lower-caffeine option instead.†
Is C4 Ultimate third-party tested?
No — as a beverage rather than a capsule/powder supplement, C4 Ultimate Energy Drink is not NSF Certified for Sport the way some other Cellucor products are (such as C4 Sport or C4 Ripped Sport). Tested athletes should factor this into their decision.†
How to Enjoy C4 Ultimate Energy Drink
Crack open a can and enjoy — no preparation required. Best suited for those with an established caffeine tolerance given the 300mg dose. Monitor total daily caffeine intake from all sources — generally recommended to stay within 400mg daily for most healthy adults. Not intended for individuals under 18, pregnant or nursing women, or those sensitive to caffeine. Consult a physician before use if taking any prescription medications or having any medical condition. California Prop 65 Warning applies.†
Why Buy at Get Yok'd
Real-time inventory across all five Southern California stores
Available in Burbank, Glendale, Glendale Galleria, Pasadena, and North Hollywood
Authorized Cellucor/C4 retailer — carrying C4 Ultimate Energy alongside C4 Performance Energy, C4 Smart Energy, and the full C4 pre-workout lineup
Staff who can tell you which C4 Ultimate flavors are currently in stock
One of the best loyalty programs in the supplement industry — earn rewards on every purchase
Who Should Exercise Caution with C4 Ultimate Energy Drink
Not intended for individuals under 18 years of age
Not for pregnant or nursing women
Not recommended for individuals sensitive to caffeine or with anxiety disorders
Not for individuals with cardiovascular conditions, high blood pressure, or heart arrhythmia — 300mg caffeine is a substantial stimulant dose
Monitor total daily caffeine intake from all sources when combining with other caffeinated products
Consult a physician before use if taking any prescription medications or having any medical condition
California Prop 65 Warning applies.
Keep out of reach of children.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
