SuppRankedTop 10 carnitine brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's Carnitine Best Sellers top 100. Updated October 15, 2026.
NOW Foods is the top-selling carnitine brand on Amazon by estimated revenue, at about $1.5M/mo from 9 products in the Carnitine Best Sellers top 100. That is about 53% more than #2 Nutricost (~$972K/mo). The list is fragmented: the top 3 brands take about 29% of its estimated sales and the top 10 about 65%, spread across 33 brands in total. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | NOW Foods13% share · best #11 | $1.5M |
| 2 | Nutricost9% share · best #1 | $972K |
| 3 | Pure Encapsulations7% share · best #15 | $820K |
| 4 | Nutrex7% share · best #2 | $749K |
| 5 | Jarrow Formulas6% share · best #4 | $700K |
| 6 | C46% share · best #3 | $692K |
| 7 | PYM6% share · best #5 | $631K |
| 8 | Nefro5% share · best #20 | $586K |
| 9 | Benevolent4% share · best #6 | $403K |
| 10 | Rooted3% share · best #12 | $376K |
The top 10, brand by brand
1. NOW Foods
~$1.5M/mo est. revenue (13% of this list) and ~45.3K units/mo from 9 products; best position #11. Its highest-ranked product here is NOW Foods L- Carnitine Tartrate 1000mg, 100 Tablets (Pack of 2) at #11. Overall it ranks #1 of 3,479 brands.
2. Nutricost
~$972K/mo est. revenue (9% of this list) and ~48.7K units/mo from 1 product; best position #1. Its highest-ranked product here is Nutricost L-Carnitine Tartrate 1,000mg, 240 Capsules, 120 Servings | 500mg Per… at #1. Overall it ranks #2 of 3,479 brands.
3. Pure Encapsulations
~$820K/mo est. revenue (7% of this list) and ~7.3K units/mo from 1 product; best position #15. Its highest-ranked product here is Pure Encapsulations CoQ10 l-Carnitine Fumarate, 120 Capsules | Heart Health… at #15. Overall it ranks #3 of 3,479 brands.
4. Nutrex
~$749K/mo est. revenue (7% of this list) and ~30K units/mo from 1 product; best position #2. Its highest-ranked product here is Nutrex Research Liquid Carnitine 3000 | Premium Liquid Carnitine, Stimulant… at #2. Overall it ranks #74 of 3,479 brands.
5. Jarrow Formulas
~$700K/mo est. revenue (6% of this list) and ~18.5K units/mo from 1 product; best position #4. Its highest-ranked product here is Jarrow L-Carnitine 500 mg, for Cellular Energy Production, 100 Capsules… at #4. Overall it ranks #32 of 3,479 brands.
6. C4
~$692K/mo est. revenue (6% of this list) and ~22.6K units/mo from 1 product; best position #3. Its highest-ranked product here is C4 Ripped Pre Workout for Men & Women, Icy Blue Razz, 30 Servings | Icy Blue… at #3. Overall it ranks #164 of 3,479 brands.
7. PYM
~$631K/mo est. revenue (6% of this list) and ~15.8K units/mo from 1 product; best position #5. Its highest-ranked product here is PYM Attention Chews, Mixed Berry (60 Count) | Energy and Focus Support | 518mg… at #5. Overall it ranks #852 of 3,479 brands.
8. Nefro
~$586K/mo est. revenue (5% of this list) and ~10.3K units/mo from 2 products; best position #20. Its highest-ranked product here is Nefro LP (FKA Nephro LP) Non-Dialysis Care Protein Powder - Low Protein, High… at #20. Overall it ranks #1035 of 3,479 brands.
9. Benevolent
~$403K/mo est. revenue (4% of this list) and ~13.9K units/mo from 1 product; best position #6. Its highest-ranked product here is Benevolent L Carnitine Supplement - High Potency 1500mg – 120 Capsules… at #6. Overall it ranks #401 of 3,479 brands.
10. Rooted
~$376K/mo est. revenue (3% of this list) and ~8.6K units/mo from 1 product; best position #12. Its highest-ranked product here is Rooted Owl® Healthy Weight & Energy Metabolism Supplement for Dogs & Cats… at #12. Overall it ranks #1223 of 3,479 brands.
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Full Carnitine ranking
All 33 brands in the list, ordered by rank strength, plus the top 10 products.
See all Carnitine brands →