🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

3 Tablet(s) Serving Size
30 Servings
Non-Nutrient/Non-Botanical Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

2000 mg
📊 Market median: 500.0mg (861 products) 📚 60 studies (Tier A: 4, B: 13)
This product: 2000mg

Other Ingredients

Microcrystalline Cellulose Stearic Acid Magnesium Stearate Silicon Dioxide

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (88% of products) Nutrient (18% of products)

Target Groups

Vegetarian Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Suggested Adult Use: Take 3 tablets daily after meals, in divided doses. Higher intakes may be beneficial, as recommended by a nutritionally informed physician.

⚠️ Warnings & Precautions

Individuals with thyroid problems or on anti-coagulant therapy should consult their physician before using this product.

🧪 Formulation Notes

The sigma-tau L-Carnitine in this product is derived from a base of pharmaceutical grade L-Carnitine manufactured by a patented, FDA-approved process.

It is GMO-free, pesticide-free, and BSE free.

Suitable for Vegetarians

Additional Information

1A nutrient naturally built into the body's chemistry

L-Carnitine Fumarate Patent # 4602039

Vital for energy production by mitochondria.* Promotes fat and carbohydrate metabolism.* Elevates resistance to oxidative stress.* Enhances brain, circulatory & other organ functions.*

Best CARNITINE ENERGY supplies L-carnitine, an amino acid nutrient vital for converting fats into energy, and to metabolize carbohydrates. Carnitine protects and facilitates the mitochondria’s essential energy functions, but can be depleted by common lifestyle factors and advancing age. Best CARNITINE ENERGY provides this conditionally essential nutrient at high potency for youthful wellbeing and healthy aging.

Sigma-tau HealthScience

BIOSINT(TM) CARNITINES

HELPS BURN FATS & CARBS*

CONTAINS NOTHING OTHER THAN LISTED INGREDIENTS.

R 08/12

Product Details

UPC / SKU 7 53950 00285 2
DSLD Entry Date 2013-09-25
Product Type Non-Nutrient/Non-Botanical
Form Tablet or Pill
DSLD ID 25160
Data Updated 2026-04-11

Research Evidence

80 Research Sources
49 Avg Quality Score
43 Rct
14 Clinical Trial
11 Systematic Review
9 Meta Analysis
2 Regulatory Source
A Propionyl-L-carnitine for intermittent claudication
Meta Analysis The Cochrane database of systematic reviews 2021
A Carnitine supplements for people with chronic kidney disease requiring dialysis
Systematic Review The Cochrane database of systematic reviews 2022
A Acetyl-L-carnitine for patients with hepatic encephalopathy
Meta Analysis The Cochrane database of systematic reviews 2019
A Acetyl-L-carnitine for the treatment of diabetic peripheral neuropathy
Meta Analysis The Cochrane database of systematic reviews 2019
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2012
B L-carnitine for cognitive enhancement in people without cognitive impairment
Meta Analysis The Cochrane database of systematic reviews 2017
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2010
B Systematic Review and Meta-analysis on Effect of Carnitine, Coenzyme Q10 and Selenium on Pregnancy and Semen Parameters in Couples With Idiopathic Male Infertility
Meta Analysis Urology 2022
B Effects of Carnitine and Coenzyme Q10 on Sperm Quality and Pregnancy Rates in Men with Unexplained Infertility: A Systematic Review and Network Meta-Analysis
Systematic Review Reproductive sciences (Thousand Oaks, Calif.) 2025
B Efficacy and Effectiveness of Carnitine Supplementation for Cancer-Related Fatigue: A Systematic Literature Review and Meta-Analysis
Meta Analysis Nutrients 2017
View all evidence for Carnitine →

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