SuppRankedTop 10 b8 (inositol) brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's B8 (Inositol) Best Sellers top 100. Updated October 15, 2026.
Theralogix is the top-selling b8 (inositol) brand on Amazon by estimated revenue, at about $2.2M/mo from 4 products in the B8 (Inositol) Best Sellers top 100. That is about 52% more than #2 Wholesome Story (~$1.4M/mo). The list is fairly concentrated: the top 3 brands take about 35% of its estimated sales and the top 10 about 63%, spread across 56 brands in total. About 9% of the products are gummies. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | Theralogix18% share · best #5 | $2.2M |
| 2 | Wholesome Story12% share · best #1 | $1.4M |
| 3 | NOW Foods6% share · best #6 | $690K |
| 4 | Peach5% share · best #4 | $646K |
| 5 | Pure Encapsulations5% share · best #18 | $592K |
| 6 | Optify5% share · best #3 | $564K |
| 7 | Zazzee4% share · best #14 | $522K |
| 8 | Designs for Health4% share · best #38 | $437K |
| 9 | Nutricost3% share · best #9 | $431K |
| 10 | Arrae3% share · best #23 | $324K |
The top 10, brand by brand
1. Theralogix
~$2.2M/mo est. revenue (18% of this list) and ~27.4K units/mo from 4 products; best position #5. Its highest-ranked product here is Theralogix Ovasitol Canister – Fertility & Hormone Health, NSF Certified… at #5. Overall it ranks #252 of 3,479 brands.
2. Wholesome Story
~$1.4M/mo est. revenue (12% of this list) and ~52.2K units/mo from 2 products; best position #1. Its highest-ranked product here is Wholesome Story Myo-Inositol & D-Chiro Inositol Supplement for Women… at #1. Overall it ranks #274 of 3,479 brands.
3. NOW Foods
~$690K/mo est. revenue (6% of this list) and ~25.7K units/mo from 4 products; best position #6. Its highest-ranked product here is NOW Foods L-Theanine, Double Strength 200 mg Per Cap - 180 Veg Capsules… at #6. Overall it ranks #1 of 3,479 brands.
4. Peach
~$646K/mo est. revenue (5% of this list) and ~18.5K units/mo from 1 product; best position #4. Its highest-ranked product here is Peach Perfect Inositol Multivitamin – Myo-Inositol & D-Chiro 40:1 Blend… at #4. Overall it ranks #459 of 3,479 brands.
5. Pure Encapsulations
~$592K/mo est. revenue (5% of this list) and ~10.8K units/mo from 2 products; best position #18. Its highest-ranked product here is Pure Encapsulations Inositol (Powder), 8.8 Ounces | Supplement to Support… at #18. Overall it ranks #3 of 3,479 brands.
6. Optify
~$564K/mo est. revenue (5% of this list) and ~22.6K units/mo from 1 product; best position #3. Its highest-ranked product here is Optify Myo-Inositol & D-Chiro Inositol Supplement for Women | 40:1 Ratio Plus… at #3. Overall it ranks #646 of 3,479 brands.
7. Zazzee
~$522K/mo est. revenue (4% of this list) and ~15.8K units/mo from 3 products; best position #14. Its highest-ranked product here is Zazzee Myo-Inositol Capsules, 2000 mg per Serving, 120 Vegan Capsules | Ideal… at #14. Overall it ranks #22 of 3,479 brands.
8. Designs for Health
~$437K/mo est. revenue (4% of this list) and ~9.3K units/mo from 3 products; best position #38. Its highest-ranked product here is Designs for Health Thyrommune, Thyroid Support Supplement, 60 Capsules… at #38. Overall it ranks #26 of 3,479 brands.
9. Nutricost
~$431K/mo est. revenue (3% of this list) and ~23.2K units/mo from 3 products; best position #9. Its highest-ranked product here is Nutricost Myo Inositol & D-Chiro Inositol for Women, 120 Capsules, GMO-Free… at #9. Overall it ranks #2 of 3,479 brands.
10. Arrae
~$324K/mo est. revenue (3% of this list) and ~5.4K units/mo from 1 product; best position #23. Its highest-ranked product here is Arrae 40:1 Myo & D-Chiro Inositol Supplement for Women, Vanilla, 30 Count… at #23. Overall it ranks #598 of 3,479 brands.
As an Amazon Associate SuppRanked earns from qualifying purchases.
Explore more
Full B8 (Inositol) ranking
All 56 brands in the list, ordered by rank strength, plus the top 10 products.
See all B8 (Inositol) brands →