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Best Vitamin B1 (thiamin) 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: 97 · Reference range: 1.2 – — mg (source) · Updated 2026-10-30
Dose fit 40 · Label transparency 20 · Data verification 15 · Company transparency 15 · Third-party test 10 — Methodology · Vitamin B1 (thiamin) →
| Rank | Product | Per day | Score | Breakdown | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Vitamin B1 100 mg Swanson · US NIH DSLD |
100 mg | 90.0 | Breakdown
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| 2 tie |
B-1 250 mg Vitamin World · US NIH DSLD |
250 mg | 88.0 | Breakdown
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| 2 tie |
B1 100 mg CVS Health · US NIH DSLD |
100 mg | 88.0 | Breakdown
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| 2 tie |
Vitamin B-1 100 mg Nature's Bounty · US NIH DSLD |
100 mg | 88.0 | Breakdown
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| 2 tie |
Vitamin B1 100 mg The Vitamin Shoppe · US NIH DSLD |
100 mg | 88.0 | Breakdown
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| 2 tie |
Vitamin B1 100 mg Nature Made · US NIH DSLD |
100 mg | 88.0 | Breakdown
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| 2 tie |
Vitamin B1 250 mg The Vitamin Shoppe · US NIH DSLD |
250 mg | 88.0 | Breakdown
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| 2 tie |
Vitamin B1 250 mg Spring Valley · US NIH DSLD |
250 mg | 88.0 | Breakdown
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| 9 tie |
Vitamin B-1 100 mg Thiamin HCl Nature's Way · US NIH DSLD |
100 mg | 85.0 | Breakdown
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| 9 tie |
Vitamin B1 100 mg Douglas Laboratories · US NIH DSLD |
100 mg | 85.0 | Breakdown
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| 11 tie |
MapleLife¿ Nutrition & Formula and/or NutriCentury¿ Vitamin B1 (Thiamine) Nutralab Canada Corp. · Health Canada LNHPD |
50 mg | 84.0 | Breakdown
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| 11 tie |
MapleLife¿ Nutrition & Formula and/or NutriLab¿ and/or NutriCentury¿ Vitamin B1 (Thiamine) Nutralab Canada Corp. · Health Canada LNHPD |
100 mg | 84.0 | Breakdown
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| 13 tie |
B-1 100 mg Thiamin Carlson · US NIH DSLD |
100 mg | 83.0 | Breakdown
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| 13 tie |
High Potency B1 100 mg Sundown Naturals · US NIH DSLD |
100 mg | 83.0 | Breakdown
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| 13 tie |
Super Potency Vitamin B 1 (Thiamin) 500 mg Solgar · US NIH DSLD |
500 mg | 83.0 | Breakdown
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| 13 tie |
Vitamin B1 (Thiamin) 100 mg Solgar · US NIH DSLD |
100 mg | 83.0 | Breakdown
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| 13 tie |
Vitamin B1 100 mg Bluebonnet · US NIH DSLD |
100 mg | 83.0 | Breakdown
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| 13 tie |
Vitamin B1 100 mg Country Life · US NIH DSLD |
100 mg | 83.0 | Breakdown
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| 19 tie |
Allithiamine (Vitamin B1) 50 mg Ecological Formulas · US NIH DSLD |
50 mg | 75.0 | Breakdown
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| 19 tie |
B-1 100 mg Nature's Truth · US NIH DSLD |
200 mg | 75.0 | Breakdown
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| 19 tie |
B1 100 mg Natural Grocers by Vitamin Cottage · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
B1 25 mg Cherry Burst EZ Melts · US NIH DSLD |
25 mg | 75.0 | Breakdown
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| 19 tie |
Thiamin 100 mg Celebrate · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Thiamin 50 mg Seeking Health · US NIH DSLD |
50 mg | 75.0 | Breakdown
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| 19 tie |
Thiamin Vitamin B1 100 Milligrams NutraBio · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Thiamine HCl BulkSupplements.com · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Thiamine HCl (Vitamin B1) BulkSupplements.com · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Thiamine Mononitrate Vitamin B1 Powder 200 mg BulkSupplements.com · US NIH DSLD |
162 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B-1 Thiamin HCl Voitenko Wellness · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 Herb-Science · US NIH DSLD |
6 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 Earthborn Elements · US NIH DSLD |
525 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 (Thiamine Mononitrate) BulkSupplements.com · US NIH DSLD |
92 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 100 mg Standard Vitamins · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 100 mg Nutricost · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 100 mg AvPak · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 100 mg Meijer · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 100 mg Vitamatic · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 250 mg Standard Vitamins · US NIH DSLD |
250 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 500 mg Nutricost · US NIH DSLD |
500 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 500 mg Standard Vitamins · US NIH DSLD |
500 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 500 mg Dr. Clark Store · US NIH DSLD |
500 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 500 mg Dr. Clark Research Association Dr. Clark Zentrum · US NIH DSLD |
500 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 500 mg NutraBio · US NIH DSLD |
500 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 500 mg Vitamatic · US NIH DSLD |
500 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 High Potency 500 mg BIOVEA · US NIH DSLD |
500 mg | 75.0 | Breakdown
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| 19 tie |
Vitamin B1 Thiamine Mononitrate Capsules 100 mg BulkSupplements.com · US NIH DSLD |
100 mg | 75.0 | Breakdown
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| 47 tie |
B-1 100 mg (Thiamin Hydrochloride) Windmill Natural Vitamins · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 47 tie |
B-1 250 mg Thiamin HCl PhysioLogics · US NIH DSLD |
250 mg | 73.0 | Breakdown
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| 47 tie |
B1 100 mg Thompson · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 47 tie |
High Potency Vitamin B1 300 mg Natures Plus · US NIH DSLD |
300 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B-1 (Thiamin) 100 mg Geri-Care · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B-1 100 mg Capsule VitalBulk · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B-1 100 mg Capsule Vitalbulk · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B-1 250 mg Capsule VitalBulk · US NIH DSLD |
250 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B-1 250 mg Capsule Vitalbulk · US NIH DSLD |
250 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B-1 50 mg Vitalbulk · US NIH DSLD |
50 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B-1 500 mg Capsule VitalBulk · US NIH DSLD |
500 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B-1 500 mg Capsule Vitalbulk · US NIH DSLD |
500 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B1 Whole Foods · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B1 100 mg Exchange Select X · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B1 100 mg Foods Plus · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B1 100 mg Mason Natural · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 47 tie |
Vitamin B1 100 mg Bronson Laboratories · US NIH DSLD |
100 mg | 73.0 | Breakdown
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| 64 | Natural Vitamin B1+ Dr. Berg · US NIH DSLD |
50.3 mg | 72.0 | Breakdown
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| 65 tie |
AOR Benfotiamine Advanced Orthomolecular Research Inc. · Health Canada LNHPD |
80 mg | 69.0 | Breakdown
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| 65 tie |
B-One CAPSULES Pharmaline Inc. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
B-One Tablets Pharmaline Inc. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
Ba 100 mg 2158894 Ontario Inc. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
FATIGON TABLET THE ZYFAS MEDICAL CO., · Malaysia NPRA |
100 mg | 69.0 | Breakdown
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| 65 tie |
Insect Defend Patch Safety in Motion · Health Canada LNHPD |
75 mg | 69.0 | Breakdown
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| 65 tie |
LPM VITAMIN B1, B6, B12 + GINKGO BILOBA + L-CARNITINE Capsule LPM · Malaysia NPRA |
63.5 mg | 69.0 | Breakdown
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| 65 tie |
Organika Health Products Inc. Vitamin B1 Capsules Organika Health Products Inc. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
Organixs Benfotiamine 100mg Capsule Organixs · Malaysia NPRA |
100 mg | 69.0 | Breakdown
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| 65 tie |
Trophic - Vitamin B1 Trophic Canada · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
UniVits B1 100mg Tablet KCK PHARMACEUTICAL INDUSTRIES SDN. BHD. · Malaysia NPRA |
127 mg | 69.0 | Breakdown
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| 65 tie |
VITAMIN B1 PendoPharm, Division of/de Pharmascience Inc. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
VITAMIN B1 (Thiamine Hydrochloride Tablets USP) 100 mg Pharmascience Inc. / Pendopharms, Division of Pharmascience Inc. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
VITAMIN B1 (Thiamine Hydrochloride Tablets USP) 50 mg Pharmascience Inc. / Pendopharms, Division of Pharmascience Inc. · Health Canada LNHPD |
50 mg | 69.0 | Breakdown
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| 65 tie |
VITAMIN B1 100 Vitamin B1 Tablets 100 mg Jaapharm Canada Inc. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
VITAMIN B1 50 Vitamin B1 Tablets 50 mg Jaapharm Canada Inc. · Health Canada LNHPD |
50 mg | 69.0 | Breakdown
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| 65 tie |
Vitamin B1 Natural Factors Nutritional Products Limited · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
Vitamin B1 Jamieson Laboratories Ltd./ Nutricorp International · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
Vitamin B1 WN Pharmaceuticals Ltd · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
Vitamin B1 100mg Tablets Rayan Pharma Inc. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
Vitamin B1 100mgTablets Alison Pharmaceutical Manufacturing Inc. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
Vitamin B1 Tablets Odan Laboratories Ltd. · Health Canada LNHPD |
100 mg | 69.0 | Breakdown
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| 65 tie |
WELLS VITAMIN B1-B6-B12 TABLETS NGL TRADING SDN BHD · Malaysia NPRA |
100 mg | 69.0 | Breakdown
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| 65 tie |
WHCCL Vitamin B1 50mg Tablet Esprit Care Sdn. Bhd. · Malaysia NPRA |
63.6 mg | 69.0 | Breakdown
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| 89 | Nova Vitamin B 1 Nova NHP Research & Consulting Co · Health Canada LNHPD below_ref |
1 mg | 62.3 | Breakdown
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| 90 tie |
Benfotiamine 150mg 120 Gelatin Capsules Per Bottle Benfotiamine Inc. · Brand website |
150 mg | 62.0 | Breakdown
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| 90 tie |
Vitamin Supplement For Diabetes - Benfotiamine 150mg 120 Gelatin Capsules Per Bottle Benfotiamine Inc. · Brand website |
150 mg | 62.0 | Breakdown
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| 92 tie |
2 BenfoComplete™ Benfotiamine 150mg 120 Gelatin Capsules - 2 Bottles Benfotiamine Inc. · Brand website |
150 mg | 60.0 | Breakdown
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| 92 tie |
4 BenfoComplete™ Benfotiamine 150mg 120 Gelatin Capsules - 4 Bottles Benfotiamine Inc. · Brand website |
150 mg | 60.0 | Breakdown
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| 92 tie |
Amazon BenfoComplete™ G150 Benfotiamine 150mg 120 Gelatin Capsules - 3 Bottles Benfotiamine Inc. · Brand website |
150 mg | 60.0 | Breakdown
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| 92 tie |
AutoShip & Save - Benfotiamine 150mg Capsules: 3 Bottles Every 90 Days with FREE SHIPPING Benfotiamine Inc. · Brand website |
150 mg | 60.0 | Breakdown
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| 92 tie |
AutoShip & Save - Benfotiamine 150mg Capsules: 6 Bottles Every 180 Days with FREE SHIPPING Benfotiamine Inc. · Brand website |
150 mg | 60.0 | Breakdown
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| 92 tie |
BenfoComplete™ G150 Benfotiamine 150mg 120 Gelatin Capsules - 1 Bottle Benfotiamine Inc. · Brand website |
150 mg | 60.0 | Breakdown
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For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.