🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 30% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

5.5 Gram(s) Serving Size
30 Servings
Other Combinations Product Type
30% Evidence Coverage

Supplement Facts — Evidence Check

Calories
5 Calorie(s)
Total Carbohydrates
1 Gram(s) (1% DV)
Vitamin C
250 mg (278% DV)
30 mg (188% DV)
✅ 2.1× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 30mg UL 35mg
3.4 mg (200% DV)
✅ 2.6× RDA — within safe limits 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 3.4mg UL 100mg
60 mcg (2500% DV)
📊 25.0× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.06mg
CarnoSyn
1.6 Gram(s)
NO3-T
1 Gram(s)
1 Gram(s)
📊 Market median: 2000.0mg (275 products)
Median 2000.0mg This product: 1mg
Explosive Energy Blend
215 mg

Other Ingredients

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

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% 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 Original with 6 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. Keep out of reach of children.

Do not use if pregnant, nursing, currently taking PDE5 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 continuously for more than 8 weeks. Do not use if the safety seal is broken or missing.

🧪 Formulation Notes

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

Pre-workout Explosive energy Muscular endurance Studies have shown benefits of CarnoSyn Beta-Alanine to be correlated with cumulative use. Pump booster

Frozen Bombsicle Naturally & artificially flavored

C4 Original has been fueling athletes & fitness enthusiasts of all types for over a decade Explosive energy Fuel intense trainings with 150 mg of caffeine for explosive energy Muscular endurance Power through trainings with CarnoSyn Beta-Alanine, which helps support muscular endurance and combat muscular fatigue Pump booster Enhance your pumps via a unique patented combination of Creatine and Nitrate

TeaCrine CarnoSyn Carnosine Synthesizer NO3-T® Nitrate Technology

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 @C4 ENERGY @ CELLUCOR

Product Details

UPC / SKU 8 42595 11060 9
DSLD Entry Date 2025-09-25
Product Type Other Combinations
Form Powder
Brand Cellucor
DSLD ID 335105
Data Updated 2026-04-11

Research Evidence

371 Research Sources
54 Avg Quality Score
148 Meta Analysis
82 Systematic Review
71 Rct
62 Clinical Trial
2 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Other
1 Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
View all evidence for Vitamin C →

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