SuppRankedTop 10 msm brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's MSM Best Sellers top 100. Updated October 15, 2026.
Doctor's Best is the top-selling msm brand on Amazon by estimated revenue, at about $3.3M/mo from 5 products in the MSM Best Sellers top 100. That is about 2.1× as much as #2 Move Free (~$1.5M/mo). The list is fairly concentrated: the top 3 brands take about 36% of its estimated sales and the top 10 about 64%, spread across 53 brands in total. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | Doctor's Best20% share · best #1 | $3.3M |
| 2 | Move Free9% share · best #4 | $1.5M |
| 3 | Arazo Nutrition7% share · best #2 | $1.1M |
| 4 | KALA6% share · best #20 | $1M |
| 5 | NOW Foods6% share · best #3 | $990K |
| 6 | Pure Encapsulations4% share · best #19 | $708K |
| 7 | Cata-Kor3% share · best #7 | $515K |
| 8 | Omnilar3% share · best #74 | $484K |
| 9 | BulkSupplements3% share · best #9 | $456K |
| 10 | Purity3% share · best #23 | $448K |
The top 10, brand by brand
1. Doctor's Best
~$3.3M/mo est. revenue (20% of this list) and ~128K units/mo from 5 products; best position #1. Its highest-ranked product here is Doctor's BEST Glucosamine Chondroitin MSM with OptiMSM®, 240 Veggie Capsules at #1. Overall it ranks #24 of 3,478 brands.
2. Move Free
~$1.5M/mo est. revenue (9% of this list) and ~25.4K units/mo from 1 product; best position #4. Its highest-ranked product here is Move Free Advanced Joint Support, Glucosamine, Chondroitin + MSM - 3x120 ct… at #4. Overall it ranks #185 of 3,478 brands.
3. Arazo Nutrition
~$1.1M/mo est. revenue (7% of this list) and ~41.3K units/mo from 1 product; best position #2. Its highest-ranked product here is Arazo Nutrition Glucosamine Chondroitin Turmeric Msm Boswellia - Joint Support… at #2. Overall it ranks #169 of 3,478 brands.
4. KALA
~$1M/mo est. revenue (6% of this list) and ~36.7K units/mo from 6 products; best position #20. Its highest-ranked product here is KALA HEALTH MSMPure Fast Dissolving Fine MSM Powder Crystals – US-Made MSM for… at #20. Overall it ranks #332 of 3,478 brands.
5. NOW Foods
~$990K/mo est. revenue (6% of this list) and ~56.7K units/mo from 5 products; best position #3. Its highest-ranked product here is NOW Supplements, MSM 1,000 mg, Joint Health*, 240 Veg Caps at #3. Overall it ranks #1 of 3,478 brands.
6. Pure Encapsulations
~$708K/mo est. revenue (4% of this list) and ~13.4K units/mo from 2 products; best position #19. Its highest-ranked product here is Pure Encapsulations MSM Capsules, 250 Capsules | Sulfur Supplement to Support… at #19. Overall it ranks #3 of 3,478 brands.
7. Cata-Kor
~$515K/mo est. revenue (3% of this list) and ~17.2K units/mo from 1 product; best position #7. Its highest-ranked product here is Cata-Kor Hair Skin and Nails Vitamins for Women – Biotin Hair Supplement… at #7. Overall it ranks #122 of 3,478 brands.
8. Omnilar
~$484K/mo est. revenue (3% of this list) and ~3.3K units/mo from 1 product; best position #74. Its highest-ranked product here is Omnilar | Herbal Capsules with MSM | Daily Wellness Support | 20 Capsules | 5… at #74. Overall it ranks #2216 of 3,478 brands.
9. BulkSupplements
~$456K/mo est. revenue (3% of this list) and ~24K units/mo from 2 products; best position #9. Its highest-ranked product here is BulkSupplements.com MSM Powder - Methylsulfonylmethane, MSM Supplement… at #9. Overall it ranks #9 of 3,478 brands.
10. Purity
~$448K/mo est. revenue (3% of this list) and ~7.5K units/mo from 1 product; best position #23. Its highest-ranked product here is Purity Products - JointGel - Collagen Peptides for Joints + MSM Powder… at #23. Overall it ranks #130 of 3,478 brands.
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Full MSM ranking
All 53 brands in the list, ordered by rank strength, plus the top 10 products.
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