L-Carnitine®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Serving Size: 1 Tablet(s) · 1 per day

Not Present

• 

  GNC L-Carnitine

  GNC4.6(22)

  $26.99
• 

  Beyond Raw Chemistry Labs L-Carnitine

  GNC4.6(61)

  $24.99
• 

  GNC Total Lean L-Carnitine 1000 Mg 60 Tablets

  GNC4.8(27)

  $29.99
• 

  GNC Acetyl-L-Carnitine 500mg 60 Capsules

  GNC4.6(8)

  $25.99
• 

  GNC Total Lean Liquid L-Carnitine

  GNC4.0(41)

  $34.99
• 

  GNC Total Lean Cla + Carnitine Berry Sorbet 13.12 Oz. 60 Servings

  GNC4.5(30)

  $34.99
• 

  GNC Acetyl-L-Carnitine Alpha- Lipoic Acid

  GNC4.5(25)

  $29.99
• 

  Gnc Total Lean Burn & Define Vitapak

  GNC5.0(2)

  $59.99

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• Capitol Nutrition & Supplements

  4.9 (204)

  Vitamin & supplements store

  7030 W 159th St, Orland Park, IL 60462

  Directions(708) 444-2114

• Nutrition Depot

  5.0 (112)

  Vitamin & supplements store

  2005 Southwest Fwy, Houston, TX 77098

  Directions(346) 516-0878

• Nutri - Life Nutritional Center

  4.6 (17)

  Vitamin & supplements store

  1469 St Nicholas Ave, New York, NY 10033

  Directions(212) 740-2221

• Supplement Superstore

  5.0 (1144)

  Vitamin & supplements store

  14004 Manchester Rd #4514, Ballwin, MO 63011

  Directions(636) 391-1085

• Muscle & Strength

  4.7 (14094)

  Vitamin & supplements store

  1180 1st St S, Columbia, SC 29209

  Directions(800) 537-9910

• Nutrifit Store

  4.4 (7)

  Vitamin & supplements store

  8843 SW 132nd St, Miami, FL 33176

  Directions(786) 227-6393

• Inspired Health Apothecary

  5.0 (5)

  Vitamin & supplements store

  550 SW Industrial Way Bldg 2, Suite100, Bend, OR 97702

  Directions(541) 312-9838

• GNC

  4.4 (92)

  Vitamin & supplements store

  753 Broadway Spc 753, New York, NY 10003

  Directions(212) 380-5999

• Influence of L-Camitine intake for maximal exercise perfomance and fatigue recovery exercise athletes: based on elite soccer players

  Y Chun, K Lee, S Kang, N Lee, J Kim - 2011 - researchgate.net

  … L-Carnitine intake amount for prevention of L-Carnitine intake abuse and enhancement of physical performance … of specific drugs or health supplements for least three months before the …

  20116 citations

• Long-term glycine propionyl-l-carnitine supplemention and paradoxical effects on repeated anaerobic sprint performance

  PL Jacobs, ER Goldstein - Journal of the International Society of …, 2010 - Taylor & Francis

  … used in this study was the USP grade nutritional product, GlycoCarn™ (Sigma Ta Health Sciences, SpA, Rome, Italy), a molecularly bonded form of glycine and propionyl-L-carnitine. …

  201039 citations

• Effect of glycine propionyl-L-carnitine on aerobic and anaerobic exercise performance

  WA Smith, AC Fry, LC Tschume… - … journal of sport …, 2008 - journals.humankinetics.com

  … the effect of glycine propionyl-Lcarnitine (GPLC) supplementation and endurance training for 8 wk on aerobicand anaerobic-exercise performance in healthy men and women (age 18–…

  200887 citations

• Clinical effects of L-carnitine supplementation on physical performance in healthy subjects, the key to success in rehabilitation: a systematic review and meta …

  M Vecchio, R Chiaramonte, G Testa… - Journal of functional …, 2021 - mdpi.com

  … L-carnitine supplementation in healthy subjects (Table 1). In all of the studies, the participants were healthy … disorders were excluded, but healthy overweight individuals were included. …

  202145 citations

• Effect of Acute and Chronic Oral l-Carnitine Supplementation on Exercise Performance Based on the Exercise Intensity: A Systematic Review

  J Mielgo-Ayuso, L Pietrantonio, A Viribay… - Nutrients, 2021 - mdpi.com

  … to nutritional supplements in order to maintain health and … For all these reasons, l-Carnitine (l-C) supplementation has … that could improve athletic performance in both moderate- and …

  202165 citations

• Gut microbes with the gbu genes determine TMAO production from L-carnitine intake and serve as a biomarker for precision nutrition

  WK Wu, YL Lo, JY Chiu, CL Hsu, IH Lo, S Panyod… - Gut …, 2025 - Taylor & Francis

  … healthy … L-carnitine supplementation and plant-based diet treatment in the interventional cohorts The participants in HC1 had daily L-carnitine supplementation (500 mg/tablet, GNC®) …

  202519 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2011-11-25. DSLD Label ID: 2709. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.