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Best Vitamin B (Thiamine) Supplements for Daily Vitamin B1 Supplementation (2026)

We ranked products by thiamine form and dose, capsule type (vegetarian where noted), user rating, and value (cost per capsule and bottle size)

This page compares daily vitamin B1 (thiamine) supplements and thiamine derivatives to help readers choose products that fit their dosing needs and budget. Selections were evaluated for form of B1 (benfotiamine, allithiamine), dose per capsule, capsule type, user ratings, and overall value

Top Picks

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Buying Guide

Choose the right thiamine form

Benfotiamine and allithiamine are lipophilic B1 derivatives with different absorption profiles; pick the form supported by research for your goal (e.g., nerve health vs. general supplementation)

Check dose per serving

Compare milligrams per capsule—common daily options include 50 mg and 250 mg—to match your target daily intake or split doses across the day as advised by a clinician

Consider capsule type and ingredients

Vegetarian capsules and minimal excipients can matter for sensitivity or dietary preference; verify if a product lists vegetarian/vegan capsule materials

Evaluate value by price and bottle size

Look at cost per capsule or per 30-day supply rather than sticker price; larger bottle counts or multi-packs typically lower the per-dose cost

Review user ratings and brand transparency

Use verified user ratings and clear labeling on active ingredient (benfotiamine or allithiamine) and mg per capsule to assess reliability