🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 29% of ingredients have research evidence
B Label Compliance Grade

Product Label

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Label Data

12 fl. Oz. Serving Size
1 Servings
Vitamin Product Type
29% Evidence Coverage

Supplement Facts — Evidence Check

Calories
Total Fat
Sodium
25 mg (1% DV)
Total Carbohydrates
Protein
30 mg (190% DV)
✅ 2.1× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 30mg UL 35mg
6 mcg (250% DV)
✅ 2.5× RDA — within safe limits 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.006mg

Other Ingredients

Water CarnoSyn L-Citrulline BetaPower Phosphoric Acid Malic Acid Citric Acid Natural Flavors Caffeine Anhydrous Sucralose Sodium Benzoate Potassium Sorbate Acesulfame Potassium Niacinamide Potassium Citrate N-Acetyl-L-Tyrosine Cyanocobalamin

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (89% of products) Nutrient (56% of products)

Target Groups

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

Product Information

⚠️ Warnings & Precautions

Caution: Do not consume this product if you are pregnant or nursing.

Not intended for children. Recommended for adults.

🧪 Formulation Notes

Watermelon Naturally flavored Betapower Carnosyn

No artificial colors Contains 0% juice

Not a significant source of saturated fat, trans fat, cholesterol, dietary fiber, vitamin D, calcium, iron, and potassium.

Caffeine: 200 mg per 12 fl oz (1 bottle)

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

CarnoSyn Carnosine Synthesizer

Explosive energy + performance Performance energy drink

Non-carbonated formula

Tap into the explosive energy of C4 to maximize performance and dominate life. Carnosyn This patented form of Beta-alanine has been clinically shown to fight fatigue and improve muscular endurance. Within minutes of drinking C4, you may feel a tingling sensation from Beta-alanine, signaling that your body is primed for superhuman performance. Studies have shown performance benefits of Beta-Alanine to be correlated with muscle carnosine concentrations, which increase with cumulative use. Betapower This clinically studied, natural form of betaine is derived from beets, a powerful superfood that supports hydration and physical performance.

0 g sugar 0 calories

200 mg caffeine

Additional Information

CA CRV HI, ME, NY 5 cents or 10 cents

Store in a cool, dry place. Do not freeze.

$10 thirsty for more? Joint C4 rewards & earn $10 credit today! C4rewards.com Instagram @C4energy

Product Details

UPC / SKU 8 42595 11847 6
DSLD Entry Date 2024-12-21
Product Type Vitamin
Form Liquid
Brand Cellucor
DSLD ID 322590
Data Updated 2026-04-11

Research Evidence

237 Research Sources
53 Avg Quality Score
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
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
A Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency
Systematic Review The Cochrane database of systematic reviews 2018
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
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
B Helicobacter pylori infection and micronutrient deficiency in pregnant women: a systematic review and meta-analysis
Meta Analysis BMJ open gastroenterology 2020
B Vitamin B12 supplementation during pregnancy for maternal and child health outcomes
Systematic Review The Cochrane database of systematic reviews 2024
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
B Relationship between vitamin B12 levels and motor development: A systematic review
Systematic Review Clinical nutrition ESPEN 2024
B Vitamin B12, folate, and homocysteine in metabolic syndrome: a systematic review and meta-analysis
Meta Analysis Frontiers in endocrinology 2023
View all evidence for Vitamin B12 →

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