🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 25% of ingredients have research evidence
B Label Compliance Grade

Product Label

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Label Data

12 fl. Oz. Serving Size
1 Servings
Other Combinations Product Type
25% Evidence Coverage

Supplement Facts — Evidence Check

Calories
Total Fat
Sodium
25 mg (1% DV)
Total Carbohydrates
Protein
Potassium
270 mg (6% DV)
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 Malic Acid Phosphoric Acid L-Citrulline BetaPower Taurine Natural Flavors Potassium Citrate Citric Acid Caffeine Anhydrous Sucralose Sodium Benzoate Potassium Sorbate Acesulfame Potassium Niacinamide AlphaSize 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

Caffeine: 300 mg per 12 fl. oz. (1 bottle)

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

Not intended for children.

Recommended for adults.

🧪 Formulation Notes

Naturally flavored

BetaPower CarnoSyn

No artificial colors Contains 0% juice

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

Zero sugar

Performance energy drink Superhuman performance

Energy to perform Tap into our ultimate combination of explosive energy and superhuman performance to dominate your work, workout, and 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. BetaPower This clinically studied, naturally form of betaine is derived from beets, a powerful superfood that supports hydration and physical performance.

0 g sugar 0 calories

300 mg caffeine

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

Studies have shown performance benefits of Beta-Alanine to be correlated with muscle carnosine concentrations, which increase with cumulative use.

Non-carbonated formula

Additional Information

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

CA CRV HI, ME, 5 cents or 10 cents

@C4energy Instagram

Product Details

UPC / SKU 8 42595 11867 4
DSLD Entry Date 2021-08-23
Product Type Other Combinations
Form Liquid
Brand Nutrabolt
DSLD ID 254803
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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