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Best L-Carnitine / ALCAR products by transparent scoring (2026)
Single-ingredient products scored by public rules: dose fit, label transparency, data verification, company transparency, third-party testing. Not a measure of efficacy or safety. No paid placement.
Products ranked: 120 · Reference range: 217 – 2,000 mg (source) · Updated 2026-10-30
Dose fit 40 · Label transparency 20 · Data verification 15 · Company transparency 15 · Third-party test 10 — Methodology · L-Carnitine / ALCAR →
| Rank | Product | Per day | Score | Breakdown | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 tie |
CoQ10 100 mg Plus L-Carnitine Spring Valley · US NIH DSLD |
400 mg | 90.0 | Breakdown
|
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| 1 tie |
L-Carnitine Metagenics · US NIH DSLD |
500 mg | 90.0 | Breakdown
|
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| 1 tie |
L-Carnitine 1000 mg MET-Rx · US NIH DSLD |
2,000 mg | 90.0 | Breakdown
|
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| 1 tie |
L-Carnitine with Chromium Metagenics · US NIH DSLD |
500 mg | 90.0 | Breakdown
|
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| 5 tie |
Carnipure L-Carnitine 1000 mg The Vitamin Shoppe · US NIH DSLD |
1,000 mg | 88.0 | Breakdown
|
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| 5 tie |
Carnipure L-Carnitine 250 mg The Vitamin Shoppe · US NIH DSLD |
500 mg | 88.0 | Breakdown
|
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| 5 tie |
Carnipure L-Carnitine 500 mg The Vitamin Shoppe · US NIH DSLD |
500 mg | 88.0 | Breakdown
|
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| 5 tie |
L-Carnitine 500 mg GNC · US NIH DSLD |
500 mg | 88.0 | Breakdown
|
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| 5 tie |
L-Carnitine Fumarate 450 mg Swanson · US NIH DSLD |
450 mg | 88.0 | Breakdown
|
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| 10 | Acetyl L-Carnitine Alpha Lipoic Acid Solaray · US NIH DSLD below_ref |
200 mg | 86.9 | Breakdown
|
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| 11 tie |
Best L-Carnitine Fumarate Doctor's Best · US NIH DSLD |
855 mg | 85.0 | Breakdown
|
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| 11 tie |
CoQ10 L-Carnitine Fumarate Pure Encapsulations · US NIH DSLD |
1,360 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine Douglas Laboratories · US NIH DSLD |
500 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine 1000 mg Allergy Research Group · US NIH DSLD |
2,000 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine 1100 mg Natural Raspberry Bluebonnet · US NIH DSLD |
1,100 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine 250 As L-Carnitine Tartrate Jarrow Formulas · US NIH DSLD |
500 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine 250 mg Jarrow Formulas · US NIH DSLD |
500 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine 250 mg Solgar · US NIH DSLD |
2,000 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine 500 As L-Carnitine Tartrate Jarrow Formulas · US NIH DSLD |
1,000 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine 500 mg Jarrow Formulas · US NIH DSLD |
1,000 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine 500 mg Natrol · US NIH DSLD |
500 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine 500 mg Solgar · US NIH DSLD |
2,000 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine Fumarate Pure Encapsulations · US NIH DSLD |
1,360 mg | 85.0 | Breakdown
|
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| 11 tie |
L-Carnitine Fumarate 855 mg Doctor's Best · US NIH DSLD |
855 mg | 85.0 | Breakdown
|
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| 25 tie |
Acetyl L-Carnitine Designs for Health · Health Canada LNHPD |
800 mg | 84.0 | Breakdown
|
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| 25 tie |
Carnipure L-Carnitine The Vitamin Shoppe · Health Canada LNHPD |
500 mg | 84.0 | Breakdown
|
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| 25 tie |
GNC L-CARNITINE 1000MG Tablet GNC · Malaysia NPRA |
1,493 mg | 84.0 | Breakdown
|
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| 25 tie |
GNC L-CARNITINE 500 GNC · Malaysia NPRA |
733 mg | 84.0 | Breakdown
|
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| 25 tie |
Nature`s Bounty Acetyl L-Carnitine 400mg & Alpha Lipoic Acid 200mg Capsule Nature's Bounty · Malaysia NPRA |
434 mg | 84.0 | Breakdown
|
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| 30 tie |
Carnityl Thorne Research · US NIH DSLD |
1,500 mg | 83.0 | Breakdown
|
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| 30 tie |
L-Carnitine Thorne Research · US NIH DSLD |
990 mg | 83.0 | Breakdown
|
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| 30 tie |
L-Carnitine 500 mg Bluebonnet · US NIH DSLD |
500 mg | 83.0 | Breakdown
|
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| 30 tie |
L-Carnitine Caps 500 mg Country Life · US NIH DSLD |
500 mg | 83.0 | Breakdown
|
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| 34 tie |
Best Acetyl-L-Carnitine HCl Doctor's Best, Inc. · Health Canada LNHPD |
500 mg | 79.0 | Breakdown
|
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| 34 tie |
L-Carnitine 500 Tabs Optimum Nutrition Inc. · Health Canada LNHPD |
500 mg | 79.0 | Breakdown
|
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| 36 tie |
Acetyl-L-Carnitine Seeking Health · US NIH DSLD |
500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine RSP · US NIH DSLD |
1,500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine Thorne FX · US NIH DSLD |
990 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine NOW · US NIH DSLD |
1,905 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine OL Olympian Labs · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine Cardiovascular Research · US NIH DSLD |
500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine EXOS Performance Nutrition · US NIH DSLD |
990 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine MDLogic Sport · US NIH DSLD |
500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 1,000 mg H-E-B · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 1000 mg BIOVEA · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 1000 mg NutriCology · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 2 grams GNC Beyond Raw Chemistry Labs · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 250 mg Klaire Labs · US NIH DSLD |
1,500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 250 mg NOW · US NIH DSLD |
1,500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 500 MRM · US NIH DSLD |
1,500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 500 Tabs ON Optimum Nutrition · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 500 mg Village Vitality · US NIH DSLD |
500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 500 mg VitaCeutical Labs · US NIH DSLD |
500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 500 mg Viva Vitamins · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine 500 mg Physician's Preference · US NIH DSLD |
1,500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine Power SAN · US NIH DSLD |
1,500 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine Power New You Vitamins · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
|
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| 36 tie |
L-Carnitine Super Size OL Olympian Labs · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
|
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| 36 tie |
Liposomal L-Carnitine+ Codeage · US NIH DSLD |
500 mg | 75.0 | Breakdown
|
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| 36 tie |
Mega Strength L-Carnitine 1,000 mg Nature's Truth · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
|
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| 36 tie |
Super Strength Acetyl L-Carnitine HCl 1,000 mg Nature's Truth · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
|
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| 62 tie |
Acetyl L-Carnitine & Alpha-Lipoic Acid Source Naturals · US NIH DSLD |
2,000 mg | 73.0 | Breakdown
|
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| 62 tie |
Acetyl-L-Carnitine 500 mg Amy Myers MD · US NIH DSLD |
1,500 mg | 73.0 | Breakdown
|
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| 62 tie |
Active Q 30 mg + L-Carnitine Fumarate 440 mg Tishcon Corp. · US NIH DSLD |
250 mg | 73.0 | Breakdown
|
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| 62 tie |
CoQ10 Plus L-Carnitine Indiana Botanic Gardens · US NIH DSLD |
500 mg | 73.0 | Breakdown
|
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| 62 tie |
Free Form Amino Acid L-Carnitine 300 mg Nature's Plus · US NIH DSLD |
300 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine GNC Women's Ultra Mega · US NIH DSLD |
500 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine GNC Women's · US NIH DSLD |
500 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine GNC Pro Performance · US NIH DSLD |
500 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine Metabolic Maintenance · US NIH DSLD |
500 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine 1000 GNC Total Lean · US NIH DSLD |
1,000 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine 1000 mg NOW · US NIH DSLD |
2,000 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine 500 mg up&up · US NIH DSLD |
2,000 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine 500 mg Good 'N Natural · US NIH DSLD |
2,000 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine 500 mg GNC Pro Performance · US NIH DSLD |
500 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine 500 mg PhysioLogics · US NIH DSLD |
2,000 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine 500 mg NOW · US NIH DSLD |
1,500 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine 500 mg Protocol For Life Balance · US NIH DSLD |
1,500 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine 500 mg Natural Factors · US NIH DSLD |
500 mg | 73.0 | Breakdown
|
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| 62 tie |
L-Carnitine Fumarate 440 mg Health Thru Nutrition Naturally · US NIH DSLD |
250 mg | 73.0 | Breakdown
|
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| 62 tie |
Propionyl-L-Carnitine with Glycine GPLC Heart-Healthy Carnitine Swanson Ultra · US NIH DSLD |
1,030 mg | 73.0 | Breakdown
|
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| 82 | Fireball L-Carnitine Igniter Apple Top Secret Nutrition · US NIH DSLD |
1,600 mg | 72.0 | Breakdown
|
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| 83 tie |
Acetyl L-Carnitine TC Nutrition Inc. · Health Canada LNHPD |
424 mg | 69.0 | Breakdown
|
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| 83 tie |
Acetyl L-carnitine EHPlabs International, LLC · Health Canada LNHPD |
990 mg | 69.0 | Breakdown
|
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| 83 tie |
Acetyl-L-Carnitine The Bird and Be Co. Inc. · Health Canada LNHPD |
500 mg | 69.0 | Breakdown
|
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| 83 tie |
BeNourish CoQ10 Plus L-Carnitine Capsule BeNourish · Malaysia NPRA |
344 mg | 69.0 | Breakdown
|
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| 83 tie |
Carnipure Gaspari Nutrition Inc. · Health Canada LNHPD |
680 mg | 69.0 | Breakdown
|
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| 83 tie |
CellLabs CoQ10 + L-Carnitine Plus Advance Enteric-coated Soft Gel CellLabs · Malaysia NPRA |
220 mg | 69.0 | Breakdown
|
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| 83 tie |
Excel Herbal L-Carnitine 300mg Capsule Excel Herbal · Malaysia NPRA |
441 mg | 69.0 | Breakdown
|
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| 83 tie |
L-Carnitine + Raspberry Ketones Flavour Top Secret Nutrition LLC, · Health Canada LNHPD |
500 mg | 69.0 | Breakdown
|
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| 83 tie |
L-Carnitine Plus Garcinia Cambogia Top Secret Nutrition LLC, · Health Canada LNHPD |
250 mg | 69.0 | Breakdown
|
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| 83 tie |
L-carnitine 1500 Pro Supps USA, LLC · Health Canada LNHPD |
1,500 mg | 69.0 | Breakdown
|
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| 83 tie |
LAC L-Carnitine 500 mg Capsule LAC · Malaysia NPRA |
735 mg | 69.0 | Breakdown
|
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| 83 tie |
Liquid L-Carnitine + Raspberry Ketones Flavour Top Secret Nutrition LLC, · Health Canada LNHPD |
500 mg | 69.0 | Breakdown
|
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| 83 tie |
Live-well™ L-Carnitine Fumarate 500mg Capsule Live-well · Malaysia NPRA |
500 mg | 69.0 | Breakdown
|
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| 83 tie |
Nutra-Life L-Carnitine Capsule NUTRA LIFE · Malaysia NPRA |
500 mg | 69.0 | Breakdown
|
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| 83 tie |
Organixs Alpha Lipoic Acid + Acetyl L-Carnitine Capsule Organixs · Malaysia NPRA |
525 mg | 69.0 | Breakdown
|
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| 83 tie |
PowerLIFE Bio-A Nutri L-Carnitine 600MG Caplet AESTHESUISSE SDN BHD · Malaysia NPRA |
893 mg | 69.0 | Breakdown
|
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| 83 tie |
Q 10 Suprabio +L-Carnitine HOVID BERHAD · Malaysia NPRA |
440 mg | 69.0 | Breakdown
|
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| 83 tie |
VitaHealth Seaweed Calcium Capsule HERBAL SCIENCE SDN. BHD. · Malaysia NPRA |
995 mg | 69.0 | Breakdown
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For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.