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C4 Sport Watermelon

product on market Powder Cellucor Safety: 100/100
100/100

This product looks safe

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

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Vitamin B6 and B12 support energy metabolism, while calcium plays a role in muscle function. There is strong evidence for the general efficacy of these vitamins and minerals in supporting cellular energy. However, the overall evidence coverage for this specific ingredient profile is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for C4 Sport Watermelon
Open Full PDF View on NIH DSLD →
Details

Label Data

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

Supplement Facts — Evidence Check

Calories
5 Calorie(s)
Total Carbohydrate
1 Gram(s) (1% DV)
35 mcg (2% DV)
Market median: 10.0mg (1576 products) 114 studies (A:3, B:35)
35 mcg (1458% DV)
14.6× RDA — above typical dose 139 studies (A:1, B:44)
Calcium
22 mg (2% DV)
12 mg (3% DV)
Market median: 500.0mg (1 products) 316 studies (A:8, B:159)
Sodium
60 mg (3% DV)
Potassium
20 mg (1% DV)
C4 Sport Performance Blend
4.9 Gram(s)
C4 Sport Energy Blend
1.135 Gram(s)

Other Ingredients

Malic Acid Polydextrose Citric Acid Artificial Flavors Silicon Dioxide Calcium Silicate Sucralose Acesulfame Potassium FD&C Red #40
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: Take each serving (approx. 1 scoop) of C4 Sport, mixed with with 6-8 fl. oz. of water 20-30 minutes before training. During your workout, it is recommended that you drink plenty of water. Some individuals may experience a harmless tingling sensation, which is attributable to beta-alanine. Use only as directed.

Warnings & Precautions

Warning: This product is only intended to be consumed by healthy adults, 18 years of age or older.

Do not use this product if you are pregnant, nursing, currently taking PDE-5 inhibitors or nitrates for chest pain. Before taking this product, consult a licensed, qualified, healthcare professional, especially 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, including but not limited to: high or low blood pressure, diabetes, anxiety, cardiovascular, psychiatric or seizure disorders, cardiac arrhythmia, stroke, heart, liver, kidney, or thyroid disease, or difficulty urinating due to prostate enlargement.

This product contains caffeine and should not be used 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 if safety seal is broken or missing.

Keep out of reach of children.

Formulation Notes

Made in the U.S.A. using U.S. and imported ingredients and components.

Pre-workout Explosive energy & performance

Watermelon Artificially flavored

Pre-Workout energy C4 Sport, taken 30 minutes prior to exercise, provides a boost of energy and focus to maximize your workout.

Additional Information

NSF Certified Sport

The NSF Certified for Sport program helps athletes, coaches and trainers make more informed decisions when choosing sports supplements. The program is recognized by the NFL, NFL Players Association, MLB, MLB Players Association, PGA, LPGA and Canadian Centre for Ethics in sports. The NSF certification mark on our products helps athletes of all levels buy our supplements with confidence. Certified supplements must meet rigorous standards that include comprehensive lab testing an extensive evaluation of the manufacturing process to ensure contaminated substances or hidden ingredients are not added to a product.

Store in a cool, dry place.

This product is sold by weight, not volume. The density of the powder varies, and significant settling of powder may occur during shipping and handling. This product contains the servings indicated when measured by weight.

America's #1 pre-workout brand Based on sales of C4 brand products in the U.S.A. from 2014 to present

Cellucor sport series system 1Pre 2 Post 3 All day Post-workout recovery Whey Sport, consumed within 30 minutes post-workout provides 30g of protein to help you recover quickly and build muscle. And, it tastes great too! All-day recovery with hydration BCAA Sport should be consumed all day for ongoing muscle recovery and hydration to maximize your workout results.

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Metadata

Product Details

UPC / SKU8 10390 02917 4
DSLD Entry Date2023-06-22
Product TypeOther Combinations
FormPowder
DSLD ID291628
Data Updated2026-04-11
Research

Research Evidence

237
Research Sources
53
Avg Quality
83
Meta Analysis
74
Systematic Review
45
Rct
29
Clinical Trial
2
Guideline
2
Regulatory Source
1
Openfda Safety
A Associations between serum Homocysteine, vitamin B9, and vitamin B12 levels and the formation of intracranial Aneurysms: A systematic review and meta-analysis
Meta Analysis Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2025 PubMed DOI
A Intake of vitamin B6, folate, and vitamin B12 and risk of coronary heart disease: a systematic review and dose-response meta-analysis of prospective cohort studies
Meta Analysis Critical reviews in food science and nutrition 2019 PubMed DOI
A Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency
Systematic Review The Cochrane database of systematic reviews 2018 PubMed DOI
A Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression
Meta Analysis Nutrients 2021 PubMed DOI
A Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis
Systematic Review Irish journal of medical science 2024 PubMed DOI
B Helicobacter pylori infection and micronutrient deficiency in pregnant women: a systematic review and meta-analysis
Meta Analysis BMJ open gastroenterology 2020 PubMed DOI
B Vitamin B12 supplementation during pregnancy for maternal and child health outcomes
Systematic Review The Cochrane database of systematic reviews 2024 PubMed DOI
B A comprehensive review and meta-regression analysis of randomized controlled trials examining the impact of vitamin B12 supplementation on homocysteine levels
Meta Analysis Nutrition reviews 2024 PubMed DOI
B Relationship between vitamin B12 levels and motor development: A systematic review
Systematic Review Clinical nutrition ESPEN 2024 PubMed DOI
B Vitamin B12, folate, and homocysteine in metabolic syndrome: a systematic review and meta-analysis
Meta Analysis Frontiers in endocrinology 2023 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.