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L-Carnitine Complex

product on market Tablet or Pill GNC Total Lean Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 43% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This complex combines L-carnitine and green coffee bean extract, which have moderate evidence for supporting energy metabolism and weight management. Garcinia cambogia and cayenne pepper are included for metabolic support, though clinical evidence for their efficacy is often limited. Niacin serves as a foundational B-vitamin to assist in cellular energy production.

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

Label

Product Label

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

Label Data

2 Tablet(s)
Serving Size
30
Servings
Other Combinations
Product Type
43%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

18 mg (113% DV)
1.3× RDA — within safe limits 196 studies (A:5, B:63)
Market median: 500.0mg (861 products) 61 studies (A:4, B:13)
Market median: 600.0mg (321 products) 5 studies — no high-quality reviews
Market median: 450.0mg (167 products)
Capsimax Cayenne Pepper fruit extract
100 mg
Market median: 260.0mg (249 products) 158 studies (A:4, B:61)
Black Pepper fruit extract
5 mg

Other Ingredients

Microcrystalline Cellulose Hydroxypropyl Cellulose Croscarmellose Sodium Crospovidone Coating Stearic Acid Silica Magnesium Stearate Dicalcium Phosphate
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a dietary supplement, take two tablets once daily, 30-60 minutes prior to exercise. On non-training days, take two tablets in the morning.

Warnings & Precautions

Keep out of reach of children.

Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.

Discontinue use two weeks prior to surgery. Niacin may cause a temporary flushing reaction.

This product contains EGCG from green tea. One serving contains 9 mg of caffeine.

Formulation Notes

Supports fatty acid metabolism & helps to fuel muscle recovery

Additional Information

Store in a cool, dry place.

Scientifically Formulated

Metadata

Product Details

UPC / SKU0 48107 19315 7
DSLD Entry Date2020-02-26
Product TypeOther Combinations
FormTablet or Pill
DSLD ID213565
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
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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.