---
title: "Niacinamide Supplement — $79K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/niacinamide-supplement"
last_updated: "2026-08-12T07:53:33.586Z"
locale: en
meta:
description: "Amazon product research for niacinamide supplement: $79K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for niacinamide supplement: $79K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Niacinamide Supplement — $79K/mo Amazon US Product Research"
---
# **Niacinamide Supplement**
**Worth a look**
Shows low returns (0.0%), but a concentrated shelf (top 5 take 79% of clicks) keeps it on the watch list.
Market size 77Growth 24Conversion 96Competition 18Returns 100Price range 51Avg price 74Brand share 32Review moat 25Quality gap 24
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Great****$947K**
$947K/yr · 467K searches
**Avg price**
**Good****$14.82**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$5.25–$25.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Bad****4,241**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-1.2%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****79%**
top-5 click share — a locked-up shelf
## **Is niacinamide supplement profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, niacinamide supplement is a $947K/yr Amazon United States market (467K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Nov. Verdict: Worth a look — 50/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **niacinamide supplement market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **60K–80K**
- avg 6,000–8,000/product
- **Revenue / yr**
- **$889K–$1.2M**
- units × avg price
- **Conversion rate**
- **13.7%**
- **Avg BSR**
- **#238**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **67%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **71 months**
- **Avg seller age**
- **148 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **—flat
**Sellers**
**73**
**Top-5 brand share**
**86%**
Top 20: 100%
**Top-5 click share**
**79%**
Top 20: 100%
**Open market**
**10%**
- Nutricost42% - NOW Foods21% - 21st Century9% - THORNE9% - Pure Encapsulations5% - Micro Ingredients4% - Open — no brand owns it (4 brands, 10%)
## **niacinamide supplement demand & seasonality**
Weekly Amazon search volume, last 100 weeks — -1.2% search growth over the last 90 days.
10K6KSpike '24Spike '25Black Friday '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Nov · busiest ÷ quietest = 5.2×
[**Open Trend **](https://flapen.com/research/us/health-household/niacinamide-supplement/trend)
## **Top niacinamide supplement search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **niacinamide 500mg**151K/yr+14.7%18.5% conv. - **b3 niacinamide**69K/yr-1.0%6.9% conv. - **vitamin b3 niacinamide**73K/yr-2.7%6.9% conv. - **niacinamide supplement**81K/yr-44.7%8.7% conv. - **vitamina b3 niacinamida**15K/yr+141.9%2.0% conv. - **niacinamide vitamin b3**13K/yr+8.6%3.2% conv. - **niacinamide b3**10K/yr+25.6%2.6% conv. - **now niacinamide 500mg**7K/yr-10.7%20.9% conv. - **niacinamide 500 mg**7K/yr-16.5%13.6% conv. - **niacinamide for dogs**5K/yr+17.7%3.3% conv. [**All search terms **](https://flapen.com/research/us/health-household/niacinamide-supplement/search-terms)
## **Top niacinamide supplement products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%$142K30%$284K45%$426K60%$568K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 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**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) [3**21st Century Niacinamide 500 mg Prolonged Release Tablets 110 Count**21st Century**$5.25**4.6★5,472 rev](https://www.amazon.com/dp/B004SCKMQS) [4**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) [5**NOW Foods Niacinamide (Vitamin B-3) 500 mg Energy Production* 250 Veg Capsules**NOW Foods**$19.35**4.7★1,097 rev](https://www.amazon.com/dp/B0C9JSF7LV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vitamatic Niacinamide 500 mg 240 Tablets - Flush Free Vitamin B3 - Supports Energy Production**Vitamatic**$12.65**291 rev2y ago](https://www.amazon.com/dp/B0CZMBZPLV) [**NOW Foods Niacinamide (Vitamin B-3) 500 mg Energy Production* 250 Veg Capsules**NOW Foods**$19.35**1,097 rev3y ago](https://www.amazon.com/dp/B0C9JSF7LV) [**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) [**Vitamin B3 Niacinamide 500mg Per Capsule 400 Capsules | 1 000mg Flush Free Niacin Per Serving Essential B Vitamin Supplement | Non-GMO Gluten Free**Micro Ingredients**$18.68**1,539 rev6y ago](https://www.amazon.com/dp/B08C9MWZD9) [**Nutricost Niacinamide (Vitamin B3) 500mg 240 Capsules Flush Free**Nutricost**$14.72**20,032 rev9y ago](https://www.amazon.com/dp/B01M9GIV8S)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**NOW Foods Niacinamide (Vitamin B-3) 500 mg Energy Production* 250 Veg Capsules**NOW Foods**$19.35**4.7★**▲ 102%**](https://www.amazon.com/dp/B0C9JSF7LV) [**NOW Foods Supplements Niacinamide (Vitamin B-3) 500 mg Energy Production* 100 Veg Capsules**NOW Foods**$7.45**4.6★**▲ 81%**](https://www.amazon.com/dp/B00RVJ3TJC) [**Vitamatic Niacinamide 500 mg 240 Tablets - Flush Free Vitamin B3 - Supports Energy Production**Vitamatic**$12.65**4.6★**▲ 44%**](https://www.amazon.com/dp/B0CZMBZPLV) [**Natures Bounty Niacin 500mg Flush Free Cellular Energy Support Supports Nervous System Health 120 Capsules**Nature's Bounty**$15.82**4.7★**▲ 34%**](https://www.amazon.com/dp/B001V9N4KW) [**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★**— 10%**](https://www.amazon.com/dp/B0012XP4MI)
**~~View all trending →~~**
## **What reviews say buyers love and hate about niacinamide supplement**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**22%
*“Reliable Quality and Easy to Take”*
**Value For Money**11%
*“Economical”*
**Vitamin**10%
*“This vitamin works...for me”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Skin Health**5%
*“great for your skin”*
**Efficiency**3%
*“Seems to have a positive effect”*
**Ease Of Use**3%
*“easy to use”*
**Energy Level**3%
*“I have more energy”*
**Nutritional Content**3%
*“Food supplement”*
**Sleep Quality**3%
*“It helps me to sleep”*
### **What buyers complain about **
**Side Effects**12%
*“It caused one side effect, Diarrhea”*
**Allergies**8%
*“Allergic to it”*
**Dosage**8%
*“Too high of doage for the average person”*
**Functionality-Overall**7%
*“This product didnt work for me”*
**Heart Health**7%
*“Required for better cholesterol regulation”*
**Vitamin**6%
*“Vitamin B3. Took for a month and half”*
**Pain Relief-Overall**4%
*“Made me ill”*
**Sleep Quality**3%
*“I am usually always very tired”*
**Color Fading/Discoloration**2%
*“All the capsules have brown and black spots; they aren't good”*
**Sinus Relief**2%
*“I feel it now in my sinuses”*
### **Top return reasons **
**Advertised Vs Actual Product**22%
**Safety Standards**11%
**Size-Overall**11%
**Fever Relief**11%
**Vitamin**11%
**Joint Pain**11%
**Dosage**11%
**Heating**11%
## **Common niacinamide supplement questions**
- **Is niacinamide supplement profitable to sell on Amazon United States?**
- The niche generates $947K/yr across 12 tracked products. 90-day search growth is -1.2%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the niacinamide supplement niche?**
- 10 brands and 73 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 86% of demand.
- **What do buyers complain about in niacinamide supplement?**
- Top complaints mined from reviews: Side Effects, Allergies, Dosage. The return rate is 0.0%.
- **When does demand for niacinamide supplement peak?**
- Demand peaks in Nov; the busiest month runs 5.2× the quietest.
- **What does it cost to enter the niacinamide supplement niche?**
- Listings span $5.25–$25.01; the average listing price is $14.82 (sweet spot $15–$100). The average incumbent carries 4,241 reviews — the moat a new listing must climb.
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