SuppRankedTop 10 l-lysine brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's L-Lysine Best Sellers top 100. Updated October 15, 2026.
Pure Encapsulations is the top-selling l-lysine brand on Amazon by estimated revenue, at about $755K/mo from 1 product in the L-Lysine Best Sellers top 100. That is about 11% more than #2 NOW Foods (~$680K/mo). The list is fragmented: the top 3 brands take about 31% of its estimated sales and the top 10 about 60%, spread across 52 brands in total. About 20% of the products are gummies. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | Pure Encapsulations12% share · best #1 | $755K |
| 2 | NOW Foods10% share · best #4 | $680K |
| 3 | Quantum Health9% share · best #3 | $571K |
| 4 | Nutricost9% share · best #5 | $556K |
| 5 | Bronson Vitamins5% share · best #2 | $339K |
| 6 | Solgar5% share · best #10 | $308K |
| 7 | Designs for Health3% share · best #30 | $176K |
| 8 | Sufficient-C3% share · best #20 | $169K |
| 9 | Solaray3% share · best #17 | $169K |
| 10 | THORNE2% share · best #9 | $157K |
The top 10, brand by brand
1. Pure Encapsulations
~$755K/mo est. revenue (12% of this list) and ~48.7K units/mo from 1 product; best position #1. Its highest-ranked product here is Pure Encapsulations L-Lysine, 90 Capsules | Essential Amino Acid Supplement for… at #1. Overall it ranks #3 of 3,479 brands.
2. NOW Foods
~$680K/mo est. revenue (10% of this list) and ~55.9K units/mo from 6 products; best position #4. Its highest-ranked product here is NOW Supplements, L-Lysine 500 mg, Amino Acid, 250 Tabs at #4. Overall it ranks #1 of 3,479 brands.
3. Quantum Health
~$571K/mo est. revenue (9% of this list) and ~40.5K units/mo from 4 products; best position #3. Its highest-ranked product here is Quantum Health SuperLysine+ 1500mg L-lysine Immune Support 180 Tablets… at #3. Overall it ranks #275 of 3,479 brands.
4. Nutricost
~$556K/mo est. revenue (9% of this list) and ~28.9K units/mo from 4 products; best position #5. Its highest-ranked product here is Nutricost L-Lysine (1000mg) 250 Servings, 500 Capsules, 500mg Per Capsule… at #5. Overall it ranks #2 of 3,479 brands.
5. Bronson Vitamins
~$339K/mo est. revenue (5% of this list) and ~37K units/mo from 2 products; best position #2. Its highest-ranked product here is Bronson L-Lysine Defense Immune Support Complex, 1500 mg, 90 Capsules… at #2. Overall it ranks #17 of 3,479 brands.
6. Solgar
~$308K/mo est. revenue (5% of this list) and ~13.4K units/mo from 2 products; best position #10. Its highest-ranked product here is Solgar L-Lysine 1000 mg, 250 Tablets - Enhanced Absorption and Assimilation… at #10. Overall it ranks #27 of 3,479 brands.
7. Designs for Health
~$176K/mo est. revenue (3% of this list) and ~4.5K units/mo from 1 product; best position #30. Its highest-ranked product here is Designs for Health L-Lysine HCL Pills, Nutritional Supplement, 120 Capsules… at #30. Overall it ranks #26 of 3,479 brands.
8. Sufficient-C
~$169K/mo est. revenue (3% of this list) and ~6K units/mo from 1 product; best position #20. Its highest-ranked product here is Sufficient-C High Dose Non-GMO Vitamin C Lemon Peach Immune-Ade Drink Mix… at #20. Overall it ranks #1518 of 3,479 brands.
9. Solaray
~$169K/mo est. revenue (3% of this list) and ~12.7K units/mo from 3 products; best position #17. Its highest-ranked product here is SOLARAY L-Lysine Monolaurin, 60 VegCaps | Immune & Gut Health Support, 1:1… at #17. Overall it ranks #16 of 3,479 brands.
10. THORNE
~$157K/mo est. revenue (2% of this list) and ~10.5K units/mo from 1 product; best position #9. Its highest-ranked product here is THORNE Lysine, 500 mg Essential L-Lysine Amino Acid, 60 Capsules | Supports… at #9. Overall it ranks #8 of 3,479 brands.
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Full L-Lysine ranking
All 52 brands in the list, ordered by rank strength, plus the top 10 products.
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