Explosive energy, heightened focus and an overwhelming urge to tackle any challenge...that’s the C4 experience. Millions of people­—ranging from beginners all the way up to the elite competitors, have relied on C4 pre-workout to help them turn their ambitions into achievements.As America’s #1 selling pre-workout, C4 Original lives up to its solid reputation with a classic formula.
$39.99 $49.99

The Most Advanced Performance Pre-Workout Intensifier

MAXX FORCE is a revolutionary formula that combines the power of select banned substance free ingredients such as PeakO2 and Alpha Size, clinically proven to significantly improve power and VO2 max and VO2 max time to exhaustion as well as optimize peak strength, sharpen agility and delay mental fatigue. MAXXOUT is made with only premium ingredients including CarnoSyn® Beta-Alanine, which supports your intramuscular buffering system to help you train harder. 

Why Is MAXX FORCE Better?

MAXX FORCE is formulated with PeakO2 a serious ingredient for serious athletes seeking maximum physical performance, PeakO2 transforms human power and endurance.
Any sport, any workout. When it comes to performance, athletes need safe, proven science that brings out their best. PeakO2 is scientifically developed to increase performance and power with a proven blend of six natural adaptogens. Made by athletes, for athletes, we included PeakO2 to make a big impact where it matters—performance.

What Is PEAKO2?

PeakO2 is an organic-certified combination of six Ayurvedic mushroom strains grown and harvested right here in the U.S. These mushrooms are powerful adaptogens , which allow athletes to “adapt” to and overcome physical and mental stress, giving you the extra edge you want to take your training to the next level.


PeakO2's mushroom strains are grown on organic whole oats—a unique process that preserves peak bioactivity for maximum performance.. PeakO2 contains high levels of beta glucans and L-Ergothioneine, a “master” antioxidant that fights damage from oxidative stress in the body, helping athletes train longer, recover faster, and feel better throughout the process.


  • More Power: In a recent study, athletes using PeakO2 for seven days improved their power output 17.6 over baseline.
  • Better Performance: From oxygen utilization and anaerobic power, to time to exhaustion and exercise capacity, if you need performance, you need PeakO2.
  • Longer Workouts: PeakO2 can boost your endurance like no other supplement. In a 21-day clinical study at the University of North Carolina, Chapel Hill, PeakO2 users improved their time to exhaustion by 70 seconds from baseline.

 **Directions For MAXX FORCE: Mix 1 scoop of MAX FORCE in 12-14oz. of water and drink 30-45 minutes before workouts. Always begin use with 1/2 scoop or less and assess your tolerance. Once tolerance is assessed, take a maximum dose of 1 scoop.

**Warnings: Check with a qualified healthcare professional before taking this product. Do not use if you are sensitive to caffeine, pregnant or nursing a baby, under 18 years of age, have any known or suspected medical conditions, and/or if you are taking any prescription or OTC medications. MAXX FORCE is an incredibly strong pre-workout formula that contains 250mg of caffeine per serving, the equivalent of approximately 3 cups of coffee. Avoid using with any other caffeinated products. Too much caffeine may cause nervousness, irritability, sleeplessness, and, occasionally, rapid heartbeat. To avoid sleeplessness, do not consume within 6 hours of bedtime. Concerning California Residents: This product contains chemicals known to the State of California to cause cancer and birth defects or reproductive harm. 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.


Customer Reviews

Based on 11 reviews Write a review