SuppRankedTop 10 Vitamin C brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's Vitamin C Best Sellers top 100. Updated October 15, 2026.
Emergen-C is the top-selling Vitamin C brand on Amazon by estimated revenue, at about $1.3M/mo from 16 products in the Vitamin C Best Sellers top 100. That is about 56% more than #2 Airborne (~$821K/mo). The list is fairly concentrated: the top 3 brands take about 48% of its estimated sales and the top 10 about 71%, spread across 42 brands in total. About 17% of the products are gummies. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | Emergen-C22% share · best #1 | $1.3M |
| 2 | Airborne14% share · best #2 | $821K |
| 3 | Nature Made12% share · best #4 | $695K |
| 4 | THORNE6% share · best #7 | $323K |
| 5 | LivOn4% share · best #14 | $212K |
| 6 | NOW Foods3% share · best #41 | $167K |
| 7 | Nutricost3% share · best #12 | $164K |
| 8 | MaryRuth's3% share · best #28 | $151K |
| 9 | Nature's Bounty3% share · best #13 | $148K |
| 10 | Sports Research2% share · best #10 | $140K |
The top 10, brand by brand
1. Emergen-C
~$1.3M/mo est. revenue (22% of this list) and ~77.8K units/mo from 16 products; best position #1. Its highest-ranked product here is Emergen-C Vitamin C 1000mg Immune Support Powder, Orange, 30 Packets | B… at #1. Overall it ranks #102 of 3,479 brands.
2. Airborne
~$821K/mo est. revenue (14% of this list) and ~39.7K units/mo from 5 products; best position #2. Its highest-ranked product here is Airborne Immune Support Effervescent Tablets, Zesty Orange Flavor - 30ct with… at #2. Overall it ranks #170 of 3,479 brands.
3. Nature Made
~$695K/mo est. revenue (12% of this list) and ~65K units/mo from 11 products; best position #4. Its highest-ranked product here is Nature Made Vitamin C 500 mg Tablets for Daily Immune Support, 100 Count… at #4. Overall it ranks #4 of 3,479 brands.
4. THORNE
~$323K/mo est. revenue (6% of this list) and ~14.4K units/mo from 2 products; best position #7. Its highest-ranked product here is THORNE Vitamin C 500 mg, Citrus Bioflavonoids from Oranges, 90 Capsules… at #7. Overall it ranks #8 of 3,479 brands.
5. LivOn
~$212K/mo est. revenue (4% of this list) and ~4.8K units/mo from 1 product; best position #14. Its highest-ranked product here is LivOn Laboratories Lypo–Spheric Liposomal Vitamin C 1000mg - No Sugar, Immune… at #14. Overall it ranks #1687 of 3,479 brands.
6. NOW Foods
~$167K/mo est. revenue (3% of this list) and ~10.9K units/mo from 6 products; best position #41. Its highest-ranked product here is NOW Supplements, Vitamin C-1,000 w/ Rose Hips, Sustained Release, 250 Tabs at #41. Overall it ranks #1 of 3,479 brands.
7. Nutricost
~$164K/mo est. revenue (3% of this list) and ~9.7K units/mo from 3 products; best position #12. Its highest-ranked product here is Nutricost Vitamin C with Rose Hips 1025mg, 240 Capsules, Gluten Free | Vitamin… at #12. Overall it ranks #2 of 3,479 brands.
8. MaryRuth's
~$151K/mo est. revenue (3% of this list) and ~7.9K units/mo from 4 products; best position #28. Its highest-ranked product here is MARYRUTH'S USDA Organic Kids Vitamin C Liquid Drops, Orange Vanilla, 2 oz… at #28. Overall it ranks #15 of 3,479 brands.
9. Nature's Bounty
~$148K/mo est. revenue (3% of this list) and ~17.8K units/mo from 5 products; best position #13. Its highest-ranked product here is Nature’s Bounty Vitamin C 1000mg, Immune Support Supplement, Powerful… at #13. Overall it ranks #6 of 3,479 brands.
10. Sports Research
~$140K/mo est. revenue (2% of this list) and ~6.1K units/mo from 1 product; best position #10. Its highest-ranked product here is Sports Research® High Potency Vitamin C 1000mg, 240 Count Veggie Capsules… at #10. Overall it ranks #13 of 3,479 brands.
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Full Vitamin C ranking
All 42 brands in the list, ordered by rank strength, plus the top 10 products.
See all Vitamin C brands →