Top rated vitamin b1+ supplements

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AI-generated summary · updated July 28, 2026 · verify details before purchase.

1. 1 Best overall

   NOW Foods Vitamin B-1 100mg

   ★★★★★4.6/5 $7-$12

   High-quality thiamine at an affordable price from a trusted brand; tablets are easy to swallow and tested for purity.

   • Affordable
   • High purity
   • Trusted brand

   • Only 100mg per tablet

   View on Amazon manufacturer site
2. 2 Best premium

   Solgar Vitamin B1 (Thiamine) 100mg

   ★★★★★4.7/5 $10-$15

   Non-GMO, gluten-free tablets from a reputable manufacturer; free of common allergens and suitable for vegetarians.

   • Non-GMO
   • Gluten-free
   • Vegetarian

   • Slightly pricier

   View on Amazon manufacturer site
3. 3 Best budget pick

   Nature's Bounty Vitamin B1 100mg

   ★★★★☆4.5/5 $6-$10

   Budget-friendly option with good potency; widely available and backed by quality assurance.

   • Very affordable
   • Widely available
   • Good potency

   • Contains some fillers

   View on Amazon manufacturer site
4. 4 Best comprehensive B-complex

   Thorne Research B-Complex #12

   ★★★★★4.8/5 $30-$40

   Includes all B vitamins including B1 as thiamine; uses active coenzyme forms for better absorption.

   • Active coenzyme forms
   • Comprehensive formula
   • High absorption

   • Pricey
   • Only as part of B-complex

   View on Amazon manufacturer site
5. 5 Best fat-soluble form

   Doctor's Best Benfotiamine 150mg

   ★★★★★4.6/5 $15-$20

   Contains benfotiamine, a fat-soluble form of B1 that is more bioavailable; ideal for neurological support.

   • Highly bioavailable
   • Supports nerves
   • Fat-soluble

   • Higher price
   • Not traditional B1

   View on Amazon manufacturer site
6. 6 Best hypoallergenic

   Pure Encapsulations B1 (Thiamine) 100mg

   ★★★★★4.7/5 $15-$20

   Hypoallergenic formula free from common allergens; designed for sensitive individuals.

   • Hypoallergenic
   • High quality
   • Gentle on stomach

   • Expensive

   View on Amazon manufacturer site
7. 7 Best value

   Jarrow Formulas B1 (Thiamine) 100mg

   ★★★★☆4.5/5 $8-$12

   Good balance of price and quality; vegan-friendly and free of common allergens.

   • Good value
   • Vegan
   • Allergen-free

   • Tablet size may be large for some

   View on Amazon manufacturer site

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