Top 10 Best b 1 in 2026

Last Updated - 6/12/2026

🏆Best Choice

Nature Made

Nature Made Vitamin B1 100 mg, Dietary Supplement for Energy Metabolism Support, 100 Tablets, 100 Day Supply

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Energy Metabolism support supplement: contains one 100 count bottle of Nature Made Vitamin B1 100 mg Tablets for a 100 day supply(1)
•This Vitamin B1 supplement helps support a healthy brain and nervous system
•This B1 supplement also provides nervous system support
•Adults take one tablet daily with water and a meal
•This gluten free Nature Made B1 supplement has no color added, no artificial flavors and no preservatives
•United States Pharmacopeia (USP) Verified, 1 Pharmacist Recommended Vitamin and Supplement Brand
•These statements have not been evaluated by the Food and Drug Administration; this product is not intended to diagnose, treat, cure, or prevent any disease

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$5.54

$7.39

-25%

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Dr. Berg Nutritionals

Dr. Berg Natural Vitamin B1 B6 B12 Complex - Allithiamine Vitamin B1 Supplement with 8 Essential Vitamin B Complex for Men & Women Including Thiamin, Niacin, Folate, Magnesium & More - 60 Capsules

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•𝗛𝗜𝗚𝗛𝗟𝗬 𝗕𝗜𝗢𝗔𝗩𝗔𝗜𝗟𝗔𝗕𝗟𝗘 𝗔𝗟𝗟𝗜𝗧𝗛𝗜𝗔𝗠𝗜𝗡𝗘 - Dr. Berg B1 Vitamin Supplement features allithiamine, a lipid-soluble form of b1 supplement derived from vegetables in the onion family. This unique formulation enhances bioavailability for superior absorption.
•𝗣𝗢𝗧𝗘𝗡𝗧 𝗕 𝗩𝗜𝗧𝗔𝗠𝗜𝗡𝗦 - Our vitamin B1 supplement contains a comprehensive blend of vitamin b complex including Thiamine, Riboflavin, Niacin, Pantothenic acid, Pyridoxine, Biotin, Folate, and Cobalamin. This amazing formula also includes magnesium for maximum benefits.
•𝗙𝗔𝗦𝗧 & 𝗘𝗙𝗙𝗜𝗖𝗜𝗘𝗡𝗧 𝗔𝗕𝗦𝗢𝗥𝗣𝗧𝗜𝗢𝗡 - Unlike traditional thiamine, allithiamine in the Dr. Berg B Complex formula facilitates rapid absorption. This efficient delivery ensures you get the maximum benefits from your allithiamine vitamin b1.
•𝗗𝗢𝗦𝗔𝗚𝗘 & 𝗦𝗘𝗥𝗩𝗜𝗡𝗚𝗦 - Experience the benefits of this vital nutrient in a convenient and effective form with Dr. Berg B1 Multivitamin. These b vitamins for men & women have 60-capsules that provide a two-month supply for daily anytime use.
•𝗤𝗨𝗔𝗟𝗜𝗧𝗬 𝗔𝗦𝗦𝗨𝗥𝗔𝗡𝗖𝗘 - We stand by the quality of our products. Dr. Berg Natural Vitamin B1 is backed by our 30-day money-back guarantee, providing you with confidence and peace of mind as you prioritize your health. Send us a message, and the refund will be processed as long as it's requested within 30 days of purchase.

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$25.99

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Nutricost

Nutricost Vitamin B1 (Thiamine) 500mg, 120 Capsules

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•500mg of Vitamin B1 (Thiamin) Per Capsule
•120 Capsules Per Bottle
•High Quality Vitamin B1 In Every Serving
•Non-GMO, Gluten Free, 3rd Party Tested
•Made in a GMP Compliant, FDA Registered Facility

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$14.98

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NOW Foods

NOW Foods Supplements, Vitamin B-1 100 mg, Energy Production, Nervous System Health, 100 Tablets

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Vitamin B-1, also known as thiamin, is a member of the B-vitamin family that is naturally found in cereal grains, beans, nuts, eggs, and meats
•Thiamin is involved in numerous body functions, including nervous system and muscle functioning*
•Necessary for carbohydrate metabolism and the production of hydrochloric acid, which is necessary for proper digestion*
•Take 1 tablet daily with a meal
•Packaged in the USA by a family owned and operated company since 1968

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$5.20

$8.99

-42%

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Nutricost

Nutricost Vitamin B1 (Thiamine) 100mg, 120 Capsules - Gluten Free and Non-GMO

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•100mg of Vitamin B1 in Every Capsule
•120 Capsules Per Bottle
•High Quality Vitamin B1 In Every Serving
•Made in a GMP Compliant, FDA Registered Facility
•Non-GMO, Gluten Free, 3rd Party Tested

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$9.99

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Life Extension

Life Extension Mega Benfotiamine, 250 mg, a Fat-Soluble Form of thiamine, Healthy Metabolism, Ultra-bioavailable Vitamin B1, high Potency, Gluten-Free, Non-GMO, Vegetarian, 120 Capsules

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Support metabolic health – Benfotiamine is a fat-soluble form of vitamin B1 (thiamine) that supports healthy metabolism. It also helps protect your body’s tissues against oxidative stress and advanced glycation end products (AGEs), which are compounds that accumulate with age.
•Superior bioavailability – Unlike the water-soluble form, the fat-soluble thiamine (benfotiamine) in our formula easily penetrates cells. It’s been shown to support thiamine levels faster and longer than water-soluble thiamine.
•Healthy endothelial function – Benfotiamine helps promote a healthy inflammatory response. Taking benfotiamine with thiamine supports healthy endothelial function.
•Ingredients matter – We use only the finest raw ingredients with the quality and purity you deserve. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one. 
•Live your healthiest life – We believe the answers to a healthier life are within reach, and that scientific research is the key to getting us there. That’s why so many of our formulas feature specific ingredients and amounts based on scientific studies.

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$19.65

$22.50

-13%

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Deal Supplement

DEAL SUPPLEMENT Vitamin B1 500mg with Benfotiamine, 240 Capsules – 2 in 1 Enhanced Formula – Fat & Water Soluble Thiamine B1 Supplement – Third Party Tested, Non-GMO, No Gluten

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•2-in-1 bioavailable vitamin B1 benfotiamine complex. Fat & water soluble forms. Premium thiamine mononitrate with S-Benzoylthiamine O-Monophosphate
•240 capsules per bottle. 2 capsule serving size. Thiamine 500mg fortified with benfotiamine 25mg. 120 servings
•Promotes the body in turning food into energy, which aids in total nutrient uptake. May replenish essential vitamin b complex levels
•An optimized combination that uses benfotiamine to boost levels of overall vitamin B1 within the body
•Quality Ensured – 3rd party lab tested, Non-GMO ingredients. Made without gluten, dairy, eggs, peanuts, soy, wheat, yeast, and tree nuts

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$19.95

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MASON NATURAL

MASON NATURAL Vitamin B,1 Thiamine 250 mg, 100 Day Supply Dietary Supplement, Easy,to,Swallow Tablets, Support Energy Production & Healthy Metabolism

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•DAILY ENERGY SUPPORT: Easy-to-swallow high-potency thiamine tablets for adults 18+ to take once daily, preferably with food, as a dietary supplement
•PURE THIAMINE (B1): Our potent formula delivers 250 mg of pure thiamine (B1) to support nervous system function and help convert food into energy
•BENEFITS: Vitamin B1 is part of a coenzyme family that assists enzymes in crucial chemical reactions, supporting the health of the central nervous, cardiovascular, pulmonary, & immune systems
•CLEAN INGREDIENTS: Soy & sodium free, with no added starch, wheat, corn, yeast, egg, artificial colors or flavors, gluten, fragrance, & preservatives
•TRUSTED FOR OVER 50 YEARS: Mason Natural has produced quality vitamin supplements for over five decades, adhering to cGMPs (current Good Manufacturing Practices) and US guidelines with rigorous testing & inspections

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$7.83

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Solgar

Solgar Vitamin B1 (Thiamin) 500 mg, 100 Tablets - Energy Metabolism, Healthy Nervous System, Overall Well-Being - Super Potency - Non-GMO, Vegan, Gluten Free, Dairy Free - 100 Servings

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•B Complex Vitamin; Vitamin B1 (thiamin), is part of the group of essential nutrients known as the B Complex; This product offers essential B1 in a convenient vegetarian dosage form
•Energy Metabolism; B-Complex vitamins, including Vitamin B1, work to support energy metabolism in the body
•Overall Well-Being; Vitamin B1 is essential for a healthy nervous system and overall well-being, providing the body nourishment for the occasional stress of daily living
•Gluten, Wheat & Dairy Free; Solgar Vitamin B1 is free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, preservatives, and color
•The Gold Standard: For over 70 years, Solgar has been committed to quality, health, and well-being. Our mission is to create the finest nutritional supplements in small batches, through tireless research, using only the finest raw materials

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$16.06

$22.69

-29%

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SOLARAY

SOLARAY Vitamin B-1 100 mg | Healthy Energy Metabolism, Skin, Brain, Heart & Nervous System Support | 100 VegCaps

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•B Your Best: Also known as thiamine, vitamin B-1 is essential to converting carbs into energy
•Big Benefits: B-1 helps support healthy skin and brain, cardiovascular & nervous system function
•Superior Formula: Each VegCap provides 100 mg of thiamine in a whole food base w/ aloe vera
•Trusted Brand: Manufactured in our own facility; Non-GMO, vegan & lab verified for potency & purity

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$10.38

$12.79

-19%

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Our team evaluates this data alongside genuine user feedback, merging AI analysis with human insights to provide you with real-time, highly-rated recommendations that empower your decision-making with clarity and confidence.