🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 15% of ingredients have research evidence
B Label Compliance Grade

Product Label

📸

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Label Data

16.2 Gram(s) Serving Size
20 Servings
Other Combinations Product Type
15% Evidence Coverage

Supplement Facts — Evidence Check

Calories
5 Calorie(s)
Total Carbohydrates
1 Gram(s) (1% DV)
Calcium
80 mg (6% DV)
📊 Market median: 2000.0mg (275 products)
Median 2000.0mg This product: 6mg
CarnoSyn
3.2 Gram(s)
Con-Cret
1 Gram(s)
NO3-T
1 Gram(s)
1 Gram(s)
📊 Market median: 500.0mg (180 products) 📚 5 studies (Tier A: 0, B: 1)
This product: 1mg
📊 Market median: 180.0mg (239 products) 📚 43 studies (Tier A: 1, B: 19)
This product: 300mg UL 400mg
AlphaSize
200 mg
TeaCrine
62.5 mg
Toothed Clubmoss
5 mg
Rauwolfia vomitoria root bark extract
1 mg

Other Ingredients

Calcium Silicate Natural & Artificial Flavors Silicon Dioxide Citric Acid Acesulfame Potassium Sucralose Malic Acid FD&C Blue #1

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (54% of products) Approved Health (3% of products)

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating)

Product Information

📋 Directions for Use

Suggested use: Take each serving (approx. 1 scoop) of C4 Ultimate with 12 fl. oz. of water and consume 20-30 minutes before training.

⚠️ Warnings & Precautions

Some individuals may experience a harmless tingling sensation, which is attributable to Beta-Alanine.

Warning: This product is only intended for healthy adults, 18 years of age or older.

Do not use if pregnant, nursing, or currently taking PDE-5 inhibitors or nitrates for chest pain. Do not take this product before first consulting a licensed, qualified, health care professional if you are taking any other dietary supplement, prescription drug, or over-the-counter medication; or if, you suspect you have or have been treated for, diagnosed with, or have a family history of any medical condition.

This product contains caffeine and should not be used by individuals wishing to eliminate caffeine from their diet or in combination with caffeine or stimulants from other sources. Discontinue use 2 weeks prior to surgery. Immediately discontinue use and contact a medical doctor if you experience any adverse reaction to this product. Do not use this product continuously for more than 8 weeks. Do not use if the safety seal is broken or missing.

Keep out of reach of children.

🧪 Formulation Notes

Made in the U.S.A. using strategically sourced domestic and foreign ingredients and components.

Pre-workout Ultimate energy + alertness Ultimate pump + performance Ultimate muscular endurance Studies have shown benefits of CarnoSyn Beta-Alanine to be correlated with cumulative use.

Artic snow cone naturally & artificially flavored

C4 Ultimate is formulated to power your most strenuous moments of physical performance Ultimate energy + alertness Fuel your ultimate workout with 300 mg of caffeine Ultimate pump + performance Drive the ultimate pump & performance with three forms of Citrulline and Dual Creatines Ultimate muscular endurance Power strenuous training with CarnoSyn Beta-Alanine, which helps combat muscular fatigue and support muscular endurance

Additional Information

Store in a cool, dry place.

Discard seal, empty & replace lid Plastic jar how2recycle.info

#1 Global pre-workout brand Based on cumulative sales from 2016 to the present.

Scan to learn more about the C4 experience Follow us @C4ENERGY @CELLUCOR www.C4energy.com & Cellucor.com

Product Details

UPC / SKU 8 42595 12630 3
DSLD Entry Date 2024-12-21
Product Type Other Combinations
Form Powder
Brand Cellucor
DSLD ID 322571
Data Updated 2026-04-11

Research Evidence

849 Research Sources
56 Avg Quality Score
450 Meta Analysis
152 Rct
137 Systematic Review
73 Clinical Trial
11 Regulatory Source
7 Other
7 Guideline
3 Openfda Safety
2 Cochrane Review
2 Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021
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