L-Carnitine 500 mg®

Non-Nutrient / Non-Botanical

Brand: GNC Pro Performance

Tablet or PillNon-Nutrient/Non-BotanicalOn Market
Click to view full label

Net Contents

60 Tablet(s)

Serving Size

1 Tablet(s)

Servings Per Container

Not specified

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 48107 16906 0

Product Version

CODE 987412 DRG

Label Analysis

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

1Active Ingredients

Single-ingredient formula listed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1Dietary Attributes

Label states: Gluten-Free.

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

Allergen Guide

Free From

  • Milk
  • Wheat
  • Soy
  • Gluten

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.

Supplement Facts

Serving Size: 1 Tablet(s) · 1 per day

IngredientAmount Per Serving
L-Carnitine(L-Canitine Fumarate)500 mg

Not Present

Other Ingredients

Corn StarchDicalcium PhosphateCellulose

Target Groups

Adult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take one tablet daily on an empty stomach.

Warnings & Precautions

Precautions re: Children

Keep out of reach of children.

Storage

Storage

Store in a cool, dry place.

Formulation

Formula re: Contains

Pro Performance L-Carnitine provides 500 mg of this important nutrient per pill.

Formulation re: Does NOT Contain

No sugar, no artificial colors, no artificial flavors, no preservatives, sodium free, no wheat, gluten free, no soy, no dairy, yeast free.

Formula re: Contains

500mg L-Carnitine

FDA Statements

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

FDA Statement of Identity

Dietary Supplement

Other Label Statements

General Statements: All Other Content

Potency verified by GNC procedure #5064. Conforms to USP <2091> for weight. Meets USP <2040> disintegration.

General Statements: All Other Content

Facilitates muscle recovery

General: Product/Version Code

CODE 987412 DRG

Brand IP Statement(s) re: (c), (TM), (SM)

Pro Performance Results

Seals/Symbols

GF Gluten free

General Statements: All Other Content

L-Carnitine is a popular amino acid amoung bodybuilders, weight trainers and serious athletes because of its role in facilitating the metabolism of long chain fatty acids.

Manufacturer & Distributor

Distributor

General Nutrition Corporation

Pittsburgh, PA, 15222, USA

1-888-462-2548

Market Reference

$11.39 – $85.00· 14 listings
  • GNC L-Carnitine

    GNC4.6(22)
    $39.99
  • GNC Pro Performance L-Carnitine 60 Tablets

    eBay - spiritbird714.9(19)
    $11.39Lowest
  • 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 Pro Performance L-Carnitine Tablets

    eBay - nutritionshop_483.5(357)
    $45.69
  • GNC Total Lean Cla + Carnitine Berry Sorbet 13.12 Oz. 60 Servings

    GNC4.5(30)
    $34.99
  • Gnc L Carnitine 500mg Supplement, Supports Muscle Recovery, 120

    eBay - brixtondepot5.0(1)
    $66.99
  • Codeage Liposomal Acetyl L-Carnitine+

    GNC4.8(399)
    $34.99

Where to Buy Locally

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  • RightNutri

    4.9 (78)

    Vitamin & Supplements Shop

    26 Queenstown Rd, London SW8 3RX

  • Love Life Supplements

    4.8 (87)

    Vitamin & Supplements Shop

    wellington house, East Rd, Petersfield, Cambridge CB1 1BH

  • ITL Health

    5.0 (37)

    Vitamin & Supplements Shop

    50 Broadway, London SW1H 0BL

  • Fitandfat

    5.0 (321)

    Vitamin & Supplements Shop

    Inside the post office, 187 Uxbridge Rd, London W13 9AJ

  • London Supplements

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    Vitamin & Supplements Shop

    13, Waverley Industrial Park Waverley Industrial Estate, Hailsham Dr, Harrow HA1 4TR

  • British Supplements

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    Vitamin & Supplements Shop

    34, New House, 67-68 Hatton Garden, London EC1N 8JY

  • LA Muscle UK

    4.8 (917)

    Vitamin & Supplements Shop

    Oliver business park, London NW10 7XW

  • Supplemented

    4.7 (192)

    Vitamin & Supplements Shop

    Online Retail Ltd Box 1031A, Surbiton, Kingston upon Thames KT1 9AH

Research & Studies

  • 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
  • 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

    … three separate cohorts, comprising healthy adults and cardiovascular patients ( Figure 1d ). … The participants in HC1 had daily L-carnitine supplementation (500 mg/tablet, GNC®) for 1 …

    202519 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

    … -Lcarnitine (GPLC) supplementation and endurance training for 8 wk on aerobicand anaerobic-exercise performance in healthy … 3 g/day (~166 or 500 mg PLC per capsule, …

    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
  • Gut Microbes with the Gbu Gene Cluster Determine Tmao Production from L-Carnitine Intake and Serve as Biomarkers for Precision Nutrition

    WK Wu, YL Lo, JY Chiu, CL Hsu, I Lo, S Panyod… - papers.ssrn.com

    … L-carnitine supplementation and plant-based diet treatment in … L-carnitine supplementation (500 mg/tablet, GNC®) for one 173 … cohorts, comprising healthy adults and cardiovascular …

  • 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

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2017-01-25. DSLD Label ID: 69393. 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.