SuppRankedTop 10 b1 (thiamine) brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's B1 (Thiamine) Best Sellers top 100. Updated October 15, 2026.
Dr. Berg is the top-selling b1 (thiamine) brand on Amazon by estimated revenue, at about $1.7M/mo from 2 products in the B1 (Thiamine) Best Sellers top 100. That is about 2.1× as much as #2 Nutricost (~$789K/mo). The list is fairly concentrated: the top 3 brands take about 34% of its estimated sales and the top 10 about 58%, spread across 58 brands in total. About 10% of the products are gummies. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | Dr. Berg19% share · best #1 | $1.7M |
| 2 | Nutricost9% share · best #3 | $789K |
| 3 | Benfotiamine6% share · best #8 | $483K |
| 4 | Pure Encapsulations5% share · best #16 | $413K |
| 5 | Doctor's Best4% share · best #9 | $373K |
| 6 | Life Extension4% share · best #10 | $352K |
| 7 | Objective Nutrients3% share · best #11 | $245K |
| 8 | Vitamatic3% share · best #18 | $232K |
| 9 | BulkSupplements3% share · best #46 | $222K |
| 10 | Nature Made3% share · best #2 | $222K |
The top 10, brand by brand
1. Dr. Berg
~$1.7M/mo est. revenue (19% of this list) and ~61.2K units/mo from 2 products; best position #1. Its highest-ranked product here is Dr. Berg Natural Vitamin B1 B6 B12 Complex - Allithiamine Vitamin B1 Supplement… at #1. Overall it ranks #33 of 3,479 brands.
2. Nutricost
~$789K/mo est. revenue (9% of this list) and ~55.8K units/mo from 4 products; best position #3. Its highest-ranked product here is Nutricost Vitamin B1 (Thiamine) 500mg, 120 Capsules at #3. Overall it ranks #2 of 3,479 brands.
3. Benfotiamine
~$483K/mo est. revenue (6% of this list) and ~28.1K units/mo from 4 products; best position #8. Its highest-ranked product here is Benfotiamine 600mg Per Serving, 180 Veggie Capsules (300mg Per Cap) – Fat… at #8. Overall it ranks #504 of 3,479 brands.
4. Pure Encapsulations
~$413K/mo est. revenue (5% of this list) and ~7K units/mo from 1 product; best position #16. Its highest-ranked product here is Pure Encapsulations BenfoMax, 90 Capsules | 200 mg Benfotiamine, Vitamin B1… at #16. Overall it ranks #3 of 3,479 brands.
5. Doctor's Best
~$373K/mo est. revenue (4% of this list) and ~19.7K units/mo from 3 products; best position #9. Its highest-ranked product here is Doctor's Best Benfotiamine 300mg Supplement, Non GMO, Vegan, 60 Veggie Caps… at #9. Overall it ranks #24 of 3,479 brands.
6. Life Extension
~$352K/mo est. revenue (4% of this list) and ~18.3K units/mo from 2 products; best position #10. Its highest-ranked product here is Life Extension Mega Benfotiamine, 250 mg, 120 Capsules | Fat-Soluble Thiamine… at #10. Overall it ranks #11 of 3,479 brands.
7. Objective Nutrients
~$245K/mo est. revenue (3% of this list) and ~9.1K units/mo from 1 product; best position #11. Its highest-ranked product here is Objective Nutrients Thiamax TTFD Thiamine B1 Supplement | Vitamin B1 Supplement… at #11. Overall it ranks #1180 of 3,479 brands.
8. Vitamatic
~$232K/mo est. revenue (3% of this list) and ~18.2K units/mo from 4 products; best position #18. Its highest-ranked product here is Vitamatic Vitamin B1 100 mg (Thiamine), 250 Tablets, Made in USA | Support… at #18. Overall it ranks #20 of 3,479 brands.
9. BulkSupplements
~$222K/mo est. revenue (3% of this list) and ~11K units/mo from 4 products; best position #46. Its highest-ranked product here is BulkSupplements.com Thiamine HCl Capsules - Thiamine Hydrochloride, Vitamin B1… at #46. Overall it ranks #9 of 3,479 brands.
10. Nature Made
~$222K/mo est. revenue (3% of this list) and ~30K units/mo from 1 product; best position #2. Its highest-ranked product here is Nature Made Vitamin B1 100mg Tablets, 100 Tablets | Thiamine B1 Supplement for… at #2. Overall it ranks #4 of 3,479 brands.
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Full B1 (Thiamine) ranking
All 58 brands in the list, ordered by rank strength, plus the top 10 products.
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