Best Vitamin B (Thiamine) Supplements (2026 Guide)
We selected supplements by combining overall product ratings and review volume, prioritizing bioavailable thiamine forms, clear labeling, and reputable manufacturers
The Verdict
- Best Overall: Nutricost Vitamin B1 (Thiamin) 500mg, 120 capsules — Best for straightforward B1 dosing: simple thiamin formula with clear labeling for gluten-free use
- Best Value: Benfotiamine 300mg (240 capsules) vegan, gluten-free — Best for plant-based users needing high-dose benfotiamine in a vegan, gluten-free capsule
This roundup covers top-rated vitamin B (thiamine) supplements including thiamine, benfotiamine, allithiamine and TTFD forms, prioritized by user rating and review volume. Selections favor established brands, absorption-focused formulations, and clear labeling for vegan, gluten-free, or vegetarian preferences
Top Picks
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1
Best Overall Nutricost Vitamin B1 (Thiamin) 500mg, 120 capsules
Best for straightforward B1 dosing: simple thiamin formula with clear labeling for gluten-free use
Vitamin B1 (thiamin) supplement with 500mg per capsule and 120 capsules per bottle. Supports energy and mental clarity with easy-to-swallow, odorless capsules. Customer note: good quality and value for money
- 500mg thiamin per capsule
- 120 capsules per bottle
- 3rd party tested
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2
Best Value Benfotiamine 300mg (240 capsules) vegan, gluten-free
Best for plant-based users needing high-dose benfotiamine in a vegan, gluten-free capsule
Benfotiamine is a fat-soluble form of vitamin B-1 for wellness support. Customers note effective neuropathy relief and ease of swallowing with no fillers
- bioavailable benfotiamine form
- no stearates or silicon dioxide
- positive feedback on neuropathy relief
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3
Life Extension Benfotiamine with Thiamine 250 mg, 180 Veg Caps
Best for combined support: benfotiamine paired with thiamine in vegetarian capsules for broader coverage
Benfotiamine with thiamine; fat- and water-soluble B vitamin combo for daily use. Customers note improved nerve comfort and blood sugar support, with easy-to-swallow capsules
- 250 mg benfotiamine per capsule
- includes thiamine (B1)
- vegetarian capsules
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4
NusaPure Benfotiamine 300mg per Veggie Cap, 220 Count
Best for absorption-focused buyers seeking a high-dose, vegan benfotiamine capsule
Benfotiamine 300mg per capsule, 220 veggie caps for a long supply. Vegan/Vegetarian formulation with Bioperine for enhanced absorption. Users note potential benefits for blood sugar support and neuropathy relief, plus energy and sleep improvements
- high absorption 300mg per capsule
- vegan/vegetarian formulation
- Bioperine for enhanced absorption
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5
Benfotiamine 300mg 200 Caps | Fat-Soluble Vitamin B1
Best for nerve-support focus thanks to a fat-soluble benfotiamine formulation aimed at tissue uptake
Fat-soluble Benfotiamine supports overall health and nervous system function with higher bioavailability. Customers note quality, effectiveness, and sleep support, though some report seal issues and fillers
- fat-soluble form with better bioavailability
- nerve and central nervous system support
- highly absorbable vitamin B1 derivative
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6
BenfoMax 90's Benfotiamine 200 mg - Pure Encapsulations
Best for purity-minded users who prefer a benfotiamine product with minimal added ingredients
BenfoMax 90's delivers 200 mg benfotiamine per capsule for metabolism and AGE activity support. Vegan, non-GMO thiamin supplement with kidney health support. Customers note high quality and easy digestion
- 200 mg benfotiamine per capsule
- vegan & non-GMO
- supports metabolism and AGE activity
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7
Mega Benfotiamine 250 mg 180 capsules, vegetarian vitamin B1
Best for those seeking a high-count, vegetarian benfotiamine option geared to nerve health maintenance
Benfotiamine-based vitamin B1 supplement with two forms of B vitamins. Helps support nerve comfort and blood sugar balance; reported easy to swallow by users
- dual-form B vitamin formulation
- 250 mg benfotiamine per capsule
- vegetarian capsule
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8
Vitamin B1 Gummies with Benfotiamine, B6, B9 & B12 – 120 counts
Best for those who prefer gummies and want a multivitamin B blend including benfotiamine and other B vitamins
Vegan, sugar-free gummy complex delivering high-concentration benfotiamine with vitamins B6, B9, B12 and magnesium. Supports energy production and nervous system health. Customers note easy chewing and improved digestion and sleep
- benfotiamine for high bioavailability
- multivitamin B complex with B12
- vegan, sugar-free formulation
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9
Allithiamine Vitamin B1 Capsule, 50 mg, 250 caps
Best for alternative thiamine users seeking allithiamine for potential enhanced brain and nervous system support
Allithiamine B1 capsule supplement. Supports thiamine delivery with 50 mg per cap and 250 capsules per bottle. Customers report improved cognitive clarity and autonomic nerve support
- 50 mg per capsule
- 250 capsules per bottle
- positive neurological and mental clarity feedback
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10
Thiamine B1 Supplement with TTFD, 60 Capsules
Best for targeted B1 therapy using TTFD in a concise capsule format for users wanting a specialized thiamine form
Thiamine B1 supplement featuring TTFD for higher absorption. Supports energy, cognitive function, and nerve health. Positive insights suggest improved brain function
- TTFD thiamine formulation
- high absorption
- brain health support