L-Carnitine 500®

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)

  $39.99
• 

  GNC Pro Performance L-Carnitine 60 Tablets

  Silkrute4.9(19)

  $17.76Lowest
• 

  GNC Acetyl-L-Carnitine 500mg 60 Capsules

  GNC4.6(8)

  $25.99
• 

  GNC Acetyl-L-Carnitine Alpha- Lipoic Acid

  GNC4.5(25)

  $29.99
• 

  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 Total Lean L-Carnitine 1000 Mg 60 Tablets

  GNC4.8(27)

  $29.99
• 

  Codeage Liposomal Acetyl L-Carnitine+

  GNC4.8(399)

  $34.99

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

• Supplement Giant

  5.0 (350)

  Vitamin & supplements store

  7424-A S University Blvd, Centennial, CO 80122

  Directions(720) 749-2975

• Nutrition Depot

  5.0 (112)

  Vitamin & supplements store

  2005 Southwest Fwy, Houston, TX 77098

  Directions(346) 516-0878

• Supplement Superstore

  5.0 (1143)

  Vitamin & supplements store

  14004 Manchester Rd #4514, Ballwin, MO 63011

  Directions(636) 391-1085

• GNC

  4.4 (92)

  Vitamin & supplements store

  753 Broadway Spc 753, New York, NY 10003

  Directions(212) 380-5999

• GNC

  4.8 (329)

  Vitamin & supplements store

  903 Bayonne Crossing Way, Bayonne, NJ 07002

  Directions(201) 858-4272

• Revitalize Nutrition & Wellness

  5.0 (28)

  Vitamin & supplements store

  105 1st St, Auburn, AL 36830

  Directions(334) 275-9450

• Supplement Superstore

  5.0 (1389)

  Vitamin & supplements store

  8420 Eager Rd, St. Louis, MO 63144

  Directions(314) 961-3935

• 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

  … dietary supplement to enhance anaerobic work capacity and potentially sport performance, … Ta Health Sciences, SpA, Rome, Italy), a molecularly bonded form of glycine and propionyl-…

  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

  … and anaerobic-exercise performance in healthy men and women (… Health history, drug and nutritional-supplement use, and … 1 or 3 g/day (~166 or 500 mg PLC per capsule, respectively), …

  200887 citations

• Earth Medicine

  P Andersen-Parrado - Better Nutrition, 1999 - books.google.com

  … health professionals debate the merits of sports supplements … Normal use: 250-500 mg/day; in rigorous athletic regimens, 2… interfere with the normal function of L-Carnitine in the body …

  1999

• Unleash Your Strength: A Comprehensive Guide to the Strongest Pre-Workouts on the Market

  P Nastasi, CSN COACH - Sports Illustrated, 2024 - 401po8p2dk.execute-api.us-east-1 …

  … local GNC or VitaminShoppe to replicate their supplement … L-carnitine may interact with thyroid function, and health … -workout supplement or at least seek a medical professional's …

  2024

• 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 maximize athletic performance [1]. … supplementation or another supplement with l-C (glycine-propionyl l-Carnitine (GPL-C) or …

  202165 citations

• Randomised clinical trial of combined L-carnitine supplement and exercise on biochemical markers and exercise performance: a systematic review

  N Samsudin, NS Ahmad, FK Ooi… - … and Health …, 2023 - mjmhsojs.upm.edu.my

  … L-carnitine supplement at a dose of 2,000 mg per day (51). Nevertheless, Lee et al. (40) reported no adverse effects in CAD patients after consuming 1,000 mg daily of L-carnitine (500 …

  20232 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2016-11-21. DSLD Label ID: 66890. 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.