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L-Carnitine

product on market Capsule Mental Refreshment Safety: 100/100
100/100

This product looks safe

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

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

L-carnitine is researched for its role in fatty acid oxidation and energy production. There is moderate evidence suggesting it may support cognitive function and metabolic health. Current data indicates a high safety profile for most users.

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

Label

Product Label

Label for L-Carnitine
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
Non-Nutrient/Non-Botanical
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

1000 mg
Market median: 500.0mg (861 products) 61 studies (A:4, B:13)

Other Ingredients

Gelatin Rice powder
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: For adults, take two (2) capsules daily before a meal.

Warnings & Precautions

Keep out of reach of children.

As a reminder, discuss the supplements and medications you take with your health care providers.

Warning: If you are pregnant, nursing or taking any medications, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Formulation Notes

Fitness support Supports energy metabolism Supports a healthy heart Accelerated post-exercise recovery

Contains No: Artificial coloring, artificial flavor, preservatives, yeast, corn, milk or milk derivatives, lactose, salt, sodium, soy, sugar, gluten, starch or wheat.

Manufactured in a FDA Registered facility that conforms to GMP standards

We have assayed & fully guarantee the quality & potency of this product.

Additional Information

Mental Refreshment Premium brand/Optimum results

Store in a dry place and avoid excessive heat.

GMP Good Manufacturing Practice Consistent Quality Made in the USA Laboratory Tested Guaranteed Quality

100% satisfaction guaranteed

Metadata

Product Details

UPC / SKU7 15854 66469 7
DSLD Entry Date2021-01-22
Product TypeNon-Nutrient/Non-Botanical
FormCapsule
DSLD ID242524
Data Updated2026-04-11
Research

Research Evidence

80
Research Sources
49
Avg Quality
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 PubMed DOI
A Carnitine supplements for people with chronic kidney disease requiring dialysis
Systematic Review The Cochrane database of systematic reviews 2022 PubMed DOI
A Acetyl-L-carnitine for patients with hepatic encephalopathy
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
A Acetyl-L-carnitine for the treatment of diabetic peripheral neuropathy
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2012 PubMed DOI
B L-carnitine for cognitive enhancement in people without cognitive impairment
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
B Carnitine for fatigue in multiple sclerosis
Systematic Review The Cochrane database of systematic reviews 2010 PubMed DOI
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 PubMed DOI
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 PubMed DOI
B Efficacy and Effectiveness of Carnitine Supplementation for Cancer-Related Fatigue: A Systematic Literature Review and Meta-Analysis
Meta Analysis Nutrients 2017 PubMed DOI
View all evidence for Carnitine →
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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.