SuppRankedTop 10 b3 (niacin) brands on Amazon (estimated revenue)
Ranked by estimated monthly revenue from Amazon's B3 (Niacin) Best Sellers top 100. Updated October 15, 2026.
TRU is the top-selling b3 (niacin) brand on Amazon by estimated revenue, at about $4.8M/mo from 4 products in the B3 (Niacin) Best Sellers top 100. That is about 3.8× as much as #2 Rho Nutrition (~$1.3M/mo). The list is fairly concentrated: the top 3 brands take about 47% of its estimated sales and the top 10 about 67%, spread across 52 brands in total. All figures are modeled estimates, not Amazon data.
| # | Brand | Est. revenue/mo |
|---|---|---|
| 1 | TRU31% share · best #1 | $4.8M |
| 2 | Rho Nutrition8% share · best #3 | $1.3M |
| 3 | Nutricost7% share · best #2 | $1.1M |
| 4 | Heliocare5% share · best #4 | $738K |
| 5 | ProHealth3% share · best #18 | $442K |
| 6 | Toniiq3% share · best #24 | $421K |
| 7 | Cymbiotika3% share · best #21 | $420K |
| 8 | Pure Encapsulations3% share · best #28 | $402K |
| 9 | NOW Foods2% share · best #12 | $365K |
| 10 | Black Forest2% share · best #14 | $338K |
The top 10, brand by brand
1. TRU
~$4.8M/mo est. revenue (31% of this list) and ~69.9K units/mo from 4 products; best position #1. Its highest-ranked product here is TRU NIAGEN NAD+ Supplement, Nicotinamide Riboside 300mg, 30 Daily Servings… at #1. Overall it ranks #200 of 3,479 brands.
2. Rho Nutrition
~$1.3M/mo est. revenue (8% of this list) and ~22.6K units/mo from 1 product; best position #3. Its highest-ranked product here is Rho Nutrition Liposomal NAD+ Liquid Supplement | High Absorption Formula… at #3. Overall it ranks #176 of 3,479 brands.
3. Nutricost
~$1.1M/mo est. revenue (7% of this list) and ~70.6K units/mo from 7 products; best position #2. Its highest-ranked product here is Nutricost Niacinamide (Vitamin B3) 500mg, 240 Capsules, Flush Free… at #2. Overall it ranks #2 of 3,479 brands.
4. Heliocare
~$738K/mo est. revenue (5% of this list) and ~18.5K units/mo from 1 product; best position #4. Its highest-ranked product here is Heliocare Advanced with Nicotinamide Antioxidant Supplement, 120 Capsules… at #4. Overall it ranks #429 of 3,479 brands.
5. ProHealth
~$442K/mo est. revenue (3% of this list) and ~8.5K units/mo from 2 products; best position #18. Its highest-ranked product here is ProHealth NMN Pro 1000 (60 Capsules) Clinically Studied Uthever NMN. NAD+… at #18. Overall it ranks #535 of 3,479 brands.
6. Toniiq
~$421K/mo est. revenue (3% of this list) and ~12.4K units/mo from 3 products; best position #24. Its highest-ranked product here is Toniiq Liposomal NAD+ and Resveratrol Supplement - 1500mg | Ultra High Strength… at #24. Overall it ranks #77 of 3,479 brands.
7. Cymbiotika
~$420K/mo est. revenue (3% of this list) and ~5.8K units/mo from 1 product; best position #21. Its highest-ranked product here is CYMBIOTIKA Liposomal NAD+ Supplement for Energy & Healthy Aging | NAD booster… at #21. Overall it ranks #416 of 3,479 brands.
8. Pure Encapsulations
~$402K/mo est. revenue (3% of this list) and ~9.2K units/mo from 2 products; best position #28. Its highest-ranked product here is Pure Encapsulations NR Longevity NAD Supplement, 60 Capsules | Supports Healthy… at #28. Overall it ranks #3 of 3,479 brands.
9. NOW Foods
~$365K/mo est. revenue (2% of this list) and ~29.7K units/mo from 6 products; best position #12. Its highest-ranked product here is NOW Supplements, Niacinamide (Vitamin B-3) 500 mg, 100 Veg Caps at #12. Overall it ranks #1 of 3,479 brands.
10. Black Forest
~$338K/mo est. revenue (2% of this list) and ~7.7K units/mo from 1 product; best position #14. Its highest-ranked product here is Black Forest NMN Supplements 1000mg (Nicotinamide Mononucleotide) 99% Pure… at #14. Overall it ranks #377 of 3,479 brands.
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Full B3 (Niacin) ranking
All 52 brands in the list, ordered by rank strength, plus the top 10 products.
See all B3 (Niacin) brands →