Top 10 epa supplements brands on Amazon (estimated revenue)

Ranked by estimated monthly revenue from Amazon's EPA Supplements Best Sellers top 100. Updated October 15, 2026.

THORNE is the top-selling epa supplements brand on Amazon by estimated revenue, at about $754K/mo from 2 products in the EPA Supplements Best Sellers top 100. That is about 3.1× as much as #2 Nordic Naturals (~$243K/mo). The list is tightly concentrated: the top 3 brands take about 74% of its estimated sales and the top 10 about 98%, spread across 14 brands in total. All figures are modeled estimates, not Amazon data.

#BrandEst. revenue/moShare of listEst. units/moProductsBest rank
1THORNE49% share · best #1$754K49%16.5K2#1
2Nordic Naturals16% share · best #2$243K16%5K5#2
3MARQ9% share · best #21$142K9%3.5K13#21
4Igennus9% share · best #6$141K9%8652#6
5Douglas Laboratories5% share · best #14$81K5%8652#14
6OmegaVia4% share · best #4$60K4%1.5K1#4
7Accentrate3% share · best #10$44K3%5851#10
8Standard Process1% share · best #13$18K1%4871#13
9HUJ1% share · best #16$17K1%4211#16
10NOW Foods1% share · best #18$14K1%3881#18
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. THORNE

~$754K/mo est. revenue (49% of this list) and ~16.5K units/mo from 2 products; best position #1. Its highest-ranked product here is THORNE Super EPA, Omega-3 Fish Oil Supplement with EPA & DHA, 90 Softgels… at #1. Overall it ranks #6 of 3,479 brands.

2. Nordic Naturals

~$243K/mo est. revenue (16% of this list) and ~5K units/mo from 5 products; best position #2. Its highest-ranked product here is Nordic Naturals EPA Xtra, 1640mg High EPA Omega-3 Fish Oil - 90 Count… at #2. Overall it ranks #17 of 3,479 brands.

3. MARQ

~$142K/mo est. revenue (9% of this list) and ~3.5K units/mo from 13 products; best position #21. Its highest-ranked product here is MARQ Nutrition EPA 750 mg Softgels, Omega-3 EPA Supplement, Natural Taste… at #21. Overall it ranks #618 of 3,479 brands.

4. Igennus

~$141K/mo est. revenue (9% of this list) and ~865 units/mo from 2 products; best position #6. Its highest-ranked product here is Igennus Ultra EPA Omega 3 500mg, DHA-Free, IFOS-Certified, 90 Softgels… at #6. Overall it ranks #220 of 3,479 brands.

5. Douglas Laboratories

~$81K/mo est. revenue (5% of this list) and ~865 units/mo from 2 products; best position #14. Its highest-ranked product here is Douglas Laboratories Opti-EPA 500, 250 Softgels | Enteric-Coated to Support… at #14. Overall it ranks #863 of 3,479 brands.

6. OmegaVia

~$60K/mo est. revenue (4% of this list) and ~1.5K units/mo from 1 product; best position #4. Its highest-ranked product here is OmegaVia EPA 500 mg, Purified Omega 3 Fish Oil, Burpless (120 Softgels) | High… at #4. Overall it ranks #503 of 3,479 brands.

7. Accentrate

~$44K/mo est. revenue (3% of this list) and ~585 units/mo from 1 product; best position #10. Its highest-ranked product here is Accentrate Omega MAX with LYSOVETA LPC - Brain Health, Omega-3 EPA & DHA | Fish… at #10. Overall it ranks #1487 of 3,479 brands.

8. Standard Process

~$18K/mo est. revenue (1% of this list) and ~487 units/mo from 1 product; best position #13. Its highest-ranked product here is Standard Process Olprima EPA, Omega-3 EPA Balance Support, 60 softgels… at #13. Overall it ranks #121 of 3,479 brands.

9. HUJ

~$17K/mo est. revenue (1% of this list) and ~421 units/mo from 1 product; best position #16. Its highest-ranked product here is HUJ 97% EPA Omega-3 Fish Oil - 1200mg EPA Fish Oil, Wild-Caught, Sustainably… at #16. Overall it ranks #1989 of 3,479 brands.

10. NOW Foods

~$14K/mo est. revenue (1% of this list) and ~388 units/mo from 1 product; best position #18. Its highest-ranked product here is Now Foods Super EPA 360/240, 120 gels ( Multi-Pack) at #18. Overall it ranks #1 of 3,479 brands.

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