---
title: "Vitamin B3 — $545K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-b3"
last_updated: "2026-08-06T18:35:14.049Z"
locale: en
meta:
description: "Niche score 54/100 · $545K/yr market · 512K searches/yr · $14.80 avg price. Soft demand (-8.7% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · $545K/yr market · 512K searches/yr · $14.80 avg price. Soft demand (-8.7% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Vitamin B3 — $545K/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin b3**
**Worth a look**
Shows low returns (0.0%), but soft demand (-8.7% this quarter) keeps it on the watch list.
Market size 62Growth 21Conversion 76Competition 41Returns 100Price range 52Avg price 73Brand share 62Review moat 22Quality gap 43
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****7.2%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$14.80**
avg listing price — sweet spot $15–$100
**Market size**
**Good****$545K**
$545K/yr · 512K searches
**Brand share**
**Good****68%**
top-5 brand share — brands hold most of the demand
**Price range**
**Good****$5.72–$25.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****61%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Bad****9,091.68**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-8.7%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, vitamin b3 is a $545K/yr Amazon United States market (512K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Sep. Verdict: Worth a look — 54/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin b3 market data**
- **Units sold / yr**
- **40K–50K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **$592K–$740K**
- units × avg price
- **Conversion rate**
- **7.2%**
- **Avg BSR**
- **#202**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **74%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **80 months**
- **Avg seller age**
- **145 days**
## **Competition & brand share**
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▲rising
**Sellers**
**105**
**Top-5 brand share**
**68%**
Top 20: 100%
**Top-5 click share**
**61%**
Top 20: 100%
**Open market**
**27%**
- Nutricost31% - THORNE13% - NOW Foods11% - Life Extension6% - Nature Made6% - Nature's Bounty5%
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — -8.7% search growth over the last 90 days.
25K15KBlack Friday '24Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-b3/trend)
## **Top vitamin b3 search terms**
- **vitamin b3**172K/yr-6.4%6.7% conv. - **b3 vitamins**83K/yr-17.2%6.6% conv. - **vitamina b3**28K/yr+12.7%2.1% conv. - **vitamina b3 para mujer**23K/yr-37.7%1.3% conv. - **vitamina b3 para hombres**17K/yr-35.6%2.4% conv. - **thorne niacinamide**10K/yr+11.3%21.0% conv. - **vitamin b3 supplement**13K/yr-16.2%6.4% conv. - **b3 vitamins for women**11K/yr-12.3%4.6% conv. - **vit b3**10K/yr-19.3%6.1% conv. - **thorne niacinamide 500mg**3K/yr+125.5%28.4% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-b3/search-terms)
## **Top vitamin b3 products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$55K20%$109K30%$164K40%$218K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nutricost Niacinamide (Vitamin B3) 500mg 240 Capsules Flush Free**Nutricost**$14.72**4.6★20,032 rev](https://www.amazon.com/dp/B01M9GIV8S) [2**THORNE - Niacinamide - Non-Flushing Form of Vitamin B3 - Supports Skin Health & Provides Cellular Protection* - Niacin Supplement - Third-Party Certified - Gluten Dairy & Soy-Free - 180 Capsules**THORNE**$25.01**4.6★2,068 rev](https://www.amazon.com/dp/B0012XP4MI) [3**NOW Foods Supplements Niacinamide (Vitamin B-3) 500 mg Energy Production* 100 Veg Capsules**NOW Foods**$7.45**4.6★729 rev](https://www.amazon.com/dp/B00RVJ3TJC) [4**Life Extension Vitamin B3 Niacin Heart Health Cholesterol & Energy Support Gluten-Free Non-GMO 100 Capsules**Life Extension**$6.23**3.9★2,197 rev](https://www.amazon.com/dp/B000PBX32G) [5**Natures Bounty Niacin 500mg Flush Free Cellular Energy Support Supports Nervous System Health 120 Capsules**Nature's Bounty**$15.82**4.7★11,937 rev](https://www.amazon.com/dp/B001V9N4KW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Dr. Berg Highly-Potent Niacin 500 mg Now Only 125 mg per Capsule for Niacin Flush Tolerance Building Gradually Increase to 500mg a Day Vitamin B3 for Heart Brain & Energy Support 100 Capsules**Dr. Berg Nutritionals**$19.98**294 rev1y ago](https://www.amazon.com/dp/B0F6DJJB7Y) [**Vitamatic Niacin (Vitamin B3) 500mg 240 Tablets - Non-GMO & Gluten Free**Vitamatic**$9.86**322 rev2y ago](https://www.amazon.com/dp/B0D6RWZDBD) [**kindnature Vitamin B3 Niacinamide Gummies 500mg Flush-Free Niacin Supplement Supports Skin Energy & Nervous System Wellness Vegan Non-GMO Gluten-Free Soy-Free 90 Gummies**kindnature**$24.60**163 rev2y ago](https://www.amazon.com/dp/B0CZ6MFVK5) [**Bronson Super B Vitamin B Complex Sustained Release for Energy 60 Tablets**Bronson**$10.00**9,428 rev2y ago](https://www.amazon.com/dp/B0CT5Y3XK2) [**Vitamin B3 Nicotinamide 1 000mg Per Serving 500 Capsules Flush Free Niacin Essential B3 Supports Healthy Skin & Energy Production Non-GMO**DEAL SUPPLEMENT**$20.37**1,008 rev3y ago](https://www.amazon.com/dp/B0C2X6VR58)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**kindnature Vitamin B3 Niacinamide Gummies 500mg Flush-Free Niacin Supplement Supports Skin Energy & Nervous System Wellness Vegan Non-GMO Gluten-Free Soy-Free 90 Gummies**kindnature**$24.60**4.4★**▲ 164%**](https://www.amazon.com/dp/B0CZ6MFVK5) [**NOW Foods Supplements Niacinamide (Vitamin B-3) 500 mg Energy Production* 100 Veg Capsules**NOW Foods**$7.45**4.6★**▲ 65%**](https://www.amazon.com/dp/B00RVJ3TJC) [**Nature Made Super B Complex with Vitamin C & Folic Acid 140 Tablets**Nature Made**$9.63**4.7★**▲ 63%**](https://www.amazon.com/dp/B005D0DTS2) [**Life Extension Vitamin B3 Niacin Heart Health Cholesterol & Energy Support Gluten-Free Non-GMO 100 Capsules**Life Extension**$6.23**3.9★**▲ 57%**](https://www.amazon.com/dp/B000PBX32G) [**THORNE - Niacinamide - Non-Flushing Form of Vitamin B3 - Supports Skin Health & Provides Cellular Protection* - Niacin Supplement - Third-Party Certified - Gluten Dairy & Soy-Free - 180 Capsules**THORNE**$25.01**4.6★**▲ 30%**](https://www.amazon.com/dp/B0012XP4MI)
**~~View all trending →~~**
## **What buyers say about vitamin b3**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“are a reliable brand”*
**Vitamin**14%
*“I love this vitamin”*
**Advertised Vs Actual Product**11%
*“As advertised”*
**Value For Money**9%
*“Reasonable price”*
**Efficiency**4%
*“effective”*
**Nutritional Content**3%
*“Good Supplement”*
**Energy Level**3%
*“I think it boost my energy levels”*
**Ease Of Use**3%
*“Ease of use”*
**Ease Of Chewing/Swallowing**3%
*“The capsules are easy to take”*
**Dosage**2%
*“The dosage is fine”*
### **What buyers complain about **
**Allergies**20%
*“Allergic to it”*
**Side Effects**10%
*“The side effects are horrible”*
**Dosage**7%
*“I think the dosing is too high”*
**Vitamin**6%
*“These have the vitamin smell real bad”*
**Functionality-Overall**5%
*“Not controlled release, causes flushing”*
**Smell**5%
*“This caused bright yellow urine that smelled very bad which indicated that the vitamin C was being eliminated via the urine”*
**Advertised Vs Actual Product**3%
*“False advertising”*
**Ingredients-Overall**3%
*“This product is horrible”*
**Energy Level**2%
*“I can't tell a difference in energy”*
**Quality-Overall**2%
*“Cheaply Made - Do Not Buy”*
### **Top return reasons **
**Dosage**24%
**Vitamin**14%
**Advertised Vs Actual Product**10%
**Joint Pain**5%
**Value For Money**5%
**Functionality-Overall**5%
**Safety Standards**5%
**Smell**5%
**Product Condition**5%
**Side Effects**5%
## **Common questions**
- **Is vitamin b3 profitable to sell on Amazon United States?**
- The niche generates $545K/yr across 19 tracked products. 90-day search growth is -8.7%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the vitamin b3 niche?**
- 15 brands and 105 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 68% of demand.
- **What do buyers complain about in vitamin b3?**
- Top complaints mined from reviews: Allergies, Side Effects, Dosage. The return rate is 0.0%.
- **When does demand for vitamin b3 peak?**
- Demand peaks in Sep; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the vitamin b3 niche?**
- Listings span $5.72–$25.01; the average listing price is $14.80 (sweet spot $15–$100). The average incumbent carries 9,092 reviews — the moat a new listing must climb.
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