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 $276K/mo from 2 products in the L-Arginine Best Sellers top 100. That is about 57% more than #2 Nutricost (~$176K/mo). The list is fairly concentrated: the top 3 brands take about 36% of its estimated sales and the top 10 about 72%, spread across 44 brands in total. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | Nature's Pure16% share · best #2 | $276K |
| 2 | Nutricost10% share · best #7 | $176K |
| 3 | NOW Foods10% share · best #3 | $171K |
| 4 | Cardio9% share · best #20 | $157K |
| 5 | THORNE8% share · best #14 | $135K |
| 6 | Nature's Bounty5% share · best #4 | $82K |
| 7 | Pure Encapsulations4% share · best #10 | $74K |
| 8 | Dr. Emil4% share · best #9 | $67K |
| 9 | Horbäach4% share · best #12 | $61K |
| 10 | L-Citrulline3% share · best #13 | $59K |
The top 10, brand by brand
1. Nature's Pure
~$276K/mo est. revenue (16% of this list) and ~6.9K 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 #550 of 3,479 brands.
2. Nutricost
~$176K/mo est. revenue (10% of this list) and ~10.1K 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.
3. NOW Foods
~$171K/mo est. revenue (10% of this list) and ~10.5K 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.
4. Cardio
~$157K/mo est. revenue (9% of this list) and ~1.7K 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 #966 of 3,479 brands.
5. THORNE
~$135K/mo est. revenue (8% of this list) and ~2.8K 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 #6 of 3,479 brands.
6. Nature's Bounty
~$82K/mo est. revenue (5% of this list) and ~5.5K units/mo from 1 product; best position #4. Its highest-ranked product here is Nature's Bounty L-Arginine 1000mg, Non-GMO, Gluten Free, 50 Tablets… at #4. Overall it ranks #5 of 3,479 brands.
7. Pure Encapsulations
~$74K/mo est. revenue (4% of this list) and ~1.5K 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 #4 of 3,479 brands.
8. Dr. Emil
~$67K/mo est. revenue (4% of this list) and ~2.5K 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 #639 of 3,479 brands.
9. Horbäach
~$61K/mo est. revenue (4% of this list) and ~3K units/mo from 2 products; best position #12. Its highest-ranked product here is Horbäach L-Arginine L-Citrulline Complex | 3000mg | 250 Capsules | Non-GMO… at #12. Overall it ranks #7 of 3,479 brands.
10. L-Citrulline
~$59K/mo est. revenue (3% of this list) and ~3K units/mo from 2 products; best position #13. Its highest-ranked product here is L-Citrulline 1,200mg, Nitric Oxide Supplement, 210 Capsules | Pure L-Citrulline… at #13. Overall it ranks #920 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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