Cellucor C4 Original Pre-Workout Review
C4 Original Pre-Workout Powder from Cellucor is a pre-workout blend built to deliver sustained energy, endurance, and focus for hard training sessions. Each serving provides 200mg of caffeine and 2g of CarnoSyn Beta-Alanine, which the brand says supports muscular endurance. The brand states that the formula is designed for people who want to power through even the toughest sets. The product is presented as having been fueling athletes and fitness enthusiasts for over a decade. The listed key features include Hard Hitting Energy, with 200mg of caffeine for explosive energy in the gym. Muscular Endurance is supported by CarnoSyn Beta-Alanine for endurance during demanding workouts. AI-Powered Peptides refers to PeptiPump, which the page describes as an AI-powered designer peptide found exclusively in C4. Enhanced Focus comes from Huperzine combined with caffeine, which the brand says helps keep the user sharp from the first rep to the last. The page also lists Incredible Flavor, with a variety of flavors and zero sugar or artificial colors. The brand says C4 is backed by 20 years of sports nutrition expertise. The product is marketed to gym-goers and strength trainees, to people doing high-intensity workouts and cardio, and to athletes and fitness enthusiasts in general. The usage directions say to mix one scoop with 6 to 8 ounces of water and consume it 20 to 30 minutes before a workout. Beginners may start with half a scoop to assess their tolerance. The page warns that the product is intended only for healthy adults aged 18 or older. It should not be used by people who are pregnant or nursing, who take nitrates for chest pain, or who take PDE-5 inhibitors. Users are advised to consult a healthcare professional if they take meds, meds, meds, pseudoephedrine, or other medications, or if they have certain medical conditions. The product contains caffeine and should not be combined with other caffeine or stimulant sources. Users should stop use two weeks before surgery. The page also notes trademark and patent information for CarnoSyn, PeptiPump, NO3-T, and Velox. The statements have not been evaluated by the Food and Drug Administration, and the product is not intended to diagnose, treat, cure, or prevent any disease. The page displays a size of 30 servings and offers a subscription option.
Study, Trial or Testing Result Summary
MembersHuman studies
Review Totals and Summary
Members84 reviews
Biohacker Summary
MembersWhat our biohacker panel says
RAL Summary
MembersThe tier and why
More Details
MembersBody systems · Combine with · Possible side effects
Supplement Facts
Includes 0g Added Sugars 0 g · Vitamin B6 3.4 mg · Folate 100 mcg DFE
| Calories | 10 | |
| Total Carbohydrate | 1 g | <1% |
| Total Sugars | 0 g | |
| Includes 0g Added Sugars | 0 g | 0% |
| Vitamin B6 (as Pyridoxal-5-Phosphate) | 3.4 mg | 200% |
| Folate (as 6S-5-Methyltetrahydrofolate calcium salt) | 100 mcg DFE | 25% |
| Vitamin B12 (as Methylcobalamin) | 6 mcg | 250% |
| Choline (as Choline Bitartrate) | 225 mg | 41% |
| Muscular Endurance & Performance Booster | 4.5 g | † |
| CarnoSyn® Beta-Alanine | 2 g | † |
| Velox® Patented Performance Blend | 1.2 g | † |
| L-Citrulline | 1.2 g | † |
| L-Arginine | 1.2 g | † |
| PeptiPump® Bioactive Lentil peptides | 100 mg | † |
| Creatine Nitrate (as NO3-T®) | 1 g | † |
| Explosive Energy & Focus Complex | 205 mg | † |
| Caffeine Anhydrous | 200 mg | † |
| Toothed Clubmoss (Huperzia serrata) aerial parts extract (std. 1% Huperzine A) | 5 mg | † |
Other ingredients: Other Ingredients: Citric Acid, Malic Acid, Silicon Dioxide, Natural & Artificial Flavors, Calcium Silicate, Sucralose, Acesulfame Potassium, Spirulina Extract (color).
Label source: Cellucor · Report a label change
Where to Buy
Cellucor
We sell no supplements. Prices change; check the store.
More muscle and strength products
MembersThe highest ranked for the same goal
Read more
Our articles on this subject
Graded October 26, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.

