SuppRankedTop 10 l-arginine brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's L-Arginine Best Sellers top 100. Updated October 15, 2026.
Nature's Pure is the top-selling l-arginine brand on Amazon by estimated revenue, at about $1.3M/mo from 2 products in the L-Arginine Best Sellers top 100. That is about 11% more than #2 Cardio (~$1.2M/mo). The list is fairly concentrated: the top 3 brands take about 34% of its estimated sales and the top 10 about 66%, spread across 44 brands in total. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | Nature's Pure13% share · best #2 | $1.3M |
| 2 | Cardio12% share · best #20 | $1.2M |
| 3 | Nutricost9% share · best #7 | $855K |
| 4 | NOW Foods9% share · best #3 | $851K |
| 5 | THORNE5% share · best #14 | $528K |
| 6 | Pure Encapsulations5% share · best #10 | $481K |
| 7 | BulkSupplements4% share · best #28 | $388K |
| 8 | Bucked Up4% share · best #21 | $351K |
| 9 | GNC3% share · best #50 | $328K |
| 10 | Dr. Emil3% share · best #9 | $282K |
The top 10, brand by brand
1. Nature's Pure
~$1.3M/mo est. revenue (13% of this list) and ~33.4K units/mo from 2 products; best position #2. Its highest-ranked product here is Nature's Pure Blend Nitric Oxide Supplements for Men – L-Arginine L-Citrulline… at #2. Overall it ranks #441 of 3,479 brands.
2. Cardio
~$1.2M/mo est. revenue (12% of this list) and ~12.7K units/mo from 4 products; best position #20. Its highest-ranked product here is Cardio Miracle Nitric Oxide Supplement 90 Servings - Beet Root Powder with… at #20. Overall it ranks #547 of 3,479 brands.
3. Nutricost
~$855K/mo est. revenue (9% of this list) and ~48.3K units/mo from 8 products; best position #7. Its highest-ranked product here is Nutricost L-Arginine L-Citrulline Complex 750mg, 240 Capsules - Non-GMO at #7. Overall it ranks #2 of 3,479 brands.
4. NOW Foods
~$851K/mo est. revenue (9% of this list) and ~49.4K units/mo from 9 products; best position #3. Its highest-ranked product here is NOW Supplements, L-Arginine 1,000 mg, Amino Acid, 120 Tabs at #3. Overall it ranks #1 of 3,479 brands.
5. THORNE
~$528K/mo est. revenue (5% of this list) and ~10.2K units/mo from 2 products; best position #14. Its highest-ranked product here is THORNE L-Arginine, Sustained Release Formula, 120 Capsules | Supports Heart… at #14. Overall it ranks #8 of 3,479 brands.
6. Pure Encapsulations
~$481K/mo est. revenue (5% of this list) and ~9.7K units/mo from 1 product; best position #10. Its highest-ranked product here is Pure Encapsulations L-Arginine, 180 Capsules | 1,400 mg, Support Nitric Oxide… at #10. Overall it ranks #3 of 3,479 brands.
7. BulkSupplements
~$388K/mo est. revenue (4% of this list) and ~17.2K units/mo from 5 products; best position #28. Its highest-ranked product here is BulkSupplements.com L-Arginine Powder - L-Arginine Base, Arginine 1000mg… at #28. Overall it ranks #9 of 3,479 brands.
8. Bucked Up
~$351K/mo est. revenue (4% of this list) and ~8.1K units/mo from 2 products; best position #21. Its highest-ranked product here is Bucked Up - Woke - HIGH STIM Pre Workout - Best Tasting - Focus Nootropic… at #21. Overall it ranks #254 of 3,479 brands.
9. GNC
~$328K/mo est. revenue (3% of this list) and ~7.6K units/mo from 3 products; best position #50. Its highest-ranked product here is GNC Mens Arginmax Sexual Health Supplement for Men, 180 Count | Features… at #50. Overall it ranks #36 of 3,479 brands.
10. Dr. Emil
~$282K/mo est. revenue (3% of this list) and ~10.5K units/mo from 1 product; best position #9. Its highest-ranked product here is Dr. Emil L-Arginine 3000, High Dose Nitric Oxide Booster, 90 Tablets… at #9. Overall it ranks #553 of 3,479 brands.
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Full L-Arginine ranking
All 44 brands in the list, ordered by rank strength, plus the top 10 products.
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