SuppRankedTop 10 selenium brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's Selenium Best Sellers top 100. Updated October 15, 2026.
THORNE is the top-selling selenium brand on Amazon by estimated revenue, at about $682K/mo from 1 product in the Selenium Best Sellers top 100. That is about 15% more than #2 Pure Encapsulations (~$595K/mo). The list is fragmented: the top 3 brands take about 25% of its estimated sales and the top 10 about 51%, spread across 59 brands in total. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | THORNE9% share · best #1 | $682K |
| 2 | Pure Encapsulations8% share · best #2 | $595K |
| 3 | NOW Foods7% share · best #5 | $524K |
| 4 | Bronson Vitamins5% share · best #3 | $395K |
| 5 | Nutricost4% share · best #4 | $326K |
| 6 | Standard Process4% share · best #43 | $324K |
| 7 | Carlson Labs3% share · best #67 | $250K |
| 8 | Pharma Nord3% share · best #29 | $232K |
| 9 | Rootcology3% share · best #16 | $192K |
| 10 | Life Extension2% share · best #6 | $182K |
The top 10, brand by brand
1. THORNE
~$682K/mo est. revenue (9% of this list) and ~48.7K units/mo from 1 product; best position #1. Its highest-ranked product here is THORNE Selenium, 200 mcg L-Selenomethionine Supplement, 60 Capsules | Supports… at #1. Overall it ranks #8 of 3,479 brands.
2. Pure Encapsulations
~$595K/mo est. revenue (8% of this list) and ~35.4K units/mo from 2 products; best position #2. Its highest-ranked product here is Pure Encapsulations Selenium, 200 mcg | For Healthy Cellular Function, Immune… at #2. Overall it ranks #3 of 3,479 brands.
3. NOW Foods
~$524K/mo est. revenue (7% of this list) and ~43.6K units/mo from 5 products; best position #5. Its highest-ranked product here is NOW Supplements, Selenium 100 mcg, Essential Mineral, 100 Tabs at #5. Overall it ranks #1 of 3,479 brands.
4. Bronson Vitamins
~$395K/mo est. revenue (5% of this list) and ~31.7K units/mo from 2 products; best position #3. Its highest-ranked product here is Bronson Selenium 200 mcg Albion Chelated Amino Acid Complex, 250 Capsules… at #3. Overall it ranks #17 of 3,479 brands.
5. Nutricost
~$326K/mo est. revenue (4% of this list) and ~23.7K units/mo from 2 products; best position #4. Its highest-ranked product here is Nutricost Selenium 200mcg, 240 Vegetarian Capsules, L-Selenomethionine | Gluten… at #4. Overall it ranks #2 of 3,479 brands.
6. Standard Process
~$324K/mo est. revenue (4% of this list) and ~6.8K units/mo from 2 products; best position #43. Its highest-ranked product here is Standard Process Cataplex E2, Heart & Cellular Health Support, 90 Tablets… at #43. Overall it ranks #51 of 3,479 brands.
7. Carlson Labs
~$250K/mo est. revenue (3% of this list) and ~7K units/mo from 3 products; best position #67. Its highest-ranked product here is Carlson ACES, Vitamins A, C, E + Selenium, Cellular Health, 50 Softgels… at #67. Overall it ranks #63 of 3,479 brands.
8. Pharma Nord
~$232K/mo est. revenue (3% of this list) and ~6.6K units/mo from 2 products; best position #29. Its highest-ranked product here is Pharma Nord SelenoPrecise Selenium 100 mcg - High Absorption - 150 Tablets… at #29. Overall it ranks #1157 of 3,479 brands.
9. Rootcology
~$192K/mo est. revenue (3% of this list) and ~7K units/mo from 1 product; best position #16. Its highest-ranked product here is Rootcology Selenium + Myo-Inositol by Dr. Izabella Wentz | 60 Servings… at #16. Overall it ranks #1371 of 3,479 brands.
10. Life Extension
~$182K/mo est. revenue (2% of this list) and ~18.3K units/mo from 2 products; best position #6. Its highest-ranked product here is Life Extension Super Selenium Complex, 200 mcg, 1 Daily, 100 Capsules | 3 Forms… at #6. Overall it ranks #11 of 3,479 brands.
As an Amazon Associate, SuppRanked earns from qualifying purchases.
Explore more
Full Selenium ranking
All 59 brands in the list, ordered by rank strength, plus the top 10 products.
See all Selenium brands →