Go beyond your limits with C4 Ultimate, Cellucor’s most explosive pre-workout formula yet. Designed for serious lifters and intense athletes, C4 Ultimate delivers unmatched energy, tunnel-vision focus, skin-splitting pumps, and powerful endurance. With 300mg of caffeine, clinically studied doses of beta-alanine and citrulline malate, and no proprietary blends, this is the ultimate pre-workout experience; no fluff, just results. Whether you’re chasing PRs or crushing long sessions, C4 Ultimate helps you dominate every rep, set, and workout.

Key Features

Strong energy boost: Contains high-stim caffeine for alertness and energy.
Pump & blood-flow support: Citrulline (and related nitric-oxide boosters) to increase blood flow and enhance “pump.”
Muscular endurance & reduced fatigue: Includes beta-alanine to help delay fatigue and support endurance during intense sessions.
Strength & performance support: Added creatine and related compounds to aid strength, power and performance under load.
Focus & mind-muscle activation: Includes amino-acid & nootropic-type ingredients to help with mental focus and drive

Key Ingredients

300mg Caffeine: High-stim formula for extreme energy and mental intensity
Cognizin® & AlphaSize® A-GPC: Enhanced focus, motivation, and mind-muscle connection
6g Citrulline Malate: Massive pumps and improved blood flow
3.2g CarnoSyn® Beta-Alanine: Fight fatigue and boost muscular endurance
No Proprietary Blends: Fully disclosed label with clinical doses
Third-Party Tested: Quality you can trust from a brand backed by science

Brands may change ingredients, serving sizes, allergens, or other formulation aspects at any time. Always refer to your product label for the most up to date information.

Cellucor

Cellucor C4 30 Servings

Cellucor C4 Ultimate 12 Servings

Cellucor C4 60 Servings

Cellucor C4 Ultimate