Top 10 l-carnitine (sports) brands on Amazon (estimated revenue)

Ranked by estimated monthly revenue from Amazon's L-Carnitine (Sports) Best Sellers top 100. Updated October 15, 2026.

Cutler is the top-selling l-carnitine (sports) brand on Amazon by estimated revenue, at about $1.8M/mo from 1 product in the L-Carnitine (Sports) Best Sellers top 100. That is about 27% more than #2 NOW Foods (~$1.4M/mo). The list is fragmented: the top 3 brands take about 27% of its estimated sales and the top 10 about 58%, spread across 57 brands in total. About 5% of the products are gummies. All figures are modeled estimates, not Amazon data.

#BrandEst. revenue/moShare of listEst. units/moProductsBest rank
1Cutler10% share · best #1$1.8M10%67K1#1
2NOW Foods8% share · best #6$1.4M8%69.1K7#6
3ALPHA LION8% share · best #4$1.4M8%25.4K1#4
4Nutrex6% share · best #3$1.1M6%40.7K2#3
5Nutricost6% share · best #2$972K6%48.7K1#2
6Pure Encapsulations5% share · best #88$820K5%7.3K1#88
7BulkSupplements5% share · best #19$800K5%31.8K5#19
8ProSupps4% share · best #5$652K4%21.7K1#5
9iSatori3% share · best #8$592K3%27K3#8
10Evogen3% share · best #23$503K3%15.5K3#23
Estimates, not Amazon data. Modeled from public Best Sellers ranks and list prices; not profit. How it works

The top 10, brand by brand

1. Cutler

~$1.8M/mo est. revenue (10% of this list) and ~67K units/mo from 1 product; best position #1. Its highest-ranked product here is Cutler Nutrition Liquid L-Carnitine Fat Burner with Acetyl L-Carnitine | Sour… at #1. Overall it ranks #295 of 3,479 brands.

2. NOW Foods

~$1.4M/mo est. revenue (8% of this list) and ~69.1K units/mo from 7 products; best position #6. Its highest-ranked product here is NOW Supplements, L-Carnitine 500mg, Purest Form, Amino Acid, 60 Veg Caps at #6. Overall it ranks #1 of 3,479 brands.

3. ALPHA LION

~$1.4M/mo est. revenue (8% of this list) and ~25.4K units/mo from 1 product; best position #4. Its highest-ranked product here is ALPHA LION Burn2O L-Carnitine Liquid 2000mg – Stim Free Super Thermogenic Fat… at #4. Overall it ranks #217 of 3,479 brands.

4. Nutrex

~$1.1M/mo est. revenue (6% of this list) and ~40.7K units/mo from 2 products; best position #3. Its highest-ranked product here is Nutrex Research L Carnitine 3000 - Clinically Dosed L-Carnitine Liquid for… at #3. Overall it ranks #74 of 3,479 brands.

5. Nutricost

~$972K/mo est. revenue (6% of this list) and ~48.7K units/mo from 1 product; best position #2. Its highest-ranked product here is Nutricost L-Carnitine Tartrate 1,000mg, 240 Capsules, 120 Servings | 500mg Per… at #2. Overall it ranks #2 of 3,479 brands.

6. Pure Encapsulations

~$820K/mo est. revenue (5% of this list) and ~7.3K units/mo from 1 product; best position #88. Its highest-ranked product here is Pure Encapsulations CoQ10 l-Carnitine Fumarate, 120 Capsules | Heart Health… at #88. Overall it ranks #3 of 3,479 brands.

7. BulkSupplements

~$800K/mo est. revenue (5% of this list) and ~31.8K units/mo from 5 products; best position #19. Its highest-ranked product here is BulkSupplements.com L-Carnitine Powder - Carnitine Supplement, Amino Acid… at #19. Overall it ranks #9 of 3,479 brands.

8. ProSupps

~$652K/mo est. revenue (4% of this list) and ~21.7K units/mo from 1 product; best position #5. Its highest-ranked product here is ProSupps L-Carnitine Liquid 3000, Stimulant-Free Liquid Shots, Berry | Clean… at #5. Overall it ranks #318 of 3,479 brands.

9. iSatori

~$592K/mo est. revenue (3% of this list) and ~27K units/mo from 3 products; best position #8. Its highest-ranked product here is iSatori L-Carnitine LS3 3000 - Boost Energy & Metabolism, Triple-Blend… at #8. Overall it ranks #335 of 3,479 brands.

10. Evogen

~$503K/mo est. revenue (3% of this list) and ~15.5K units/mo from 3 products; best position #23. Its highest-ranked product here is Evogen Carnigen Supports Energy and Metabolism | Watermelon | 50 Servings… at #23. Overall it ranks #267 of 3,479 brands.

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