---
title: "Niacin 50mg — $120K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/niacin-50mg"
last_updated: "2026-08-11T09:51:49.334Z"
locale: en
meta:
description: "Niche score 49/100 · $120K/yr market · 97K searches/yr · $22.31 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $120K/yr market · 97K searches/yr · $22.31 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Niacin 50mg — $120K/yr Amazon US Niche (2026) - Flapen"
---
# **niacin 50mg**
**Skip it**
Soft demand (-19.4% this quarter) — this niche doesn't clear our bar today.
Market size 28Growth 15Conversion 63Competition 36Returns 100Price range 83Avg price 93Brand share 37Review moat 53Quality gap 55
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$22.31**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.71–$49.13**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.5%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,377.39**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$120K**
$120K/yr · 97K searches
**Growth**
**Bad****-19.4%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, niacin 50mg is a $120K/yr Amazon United States market (97K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 49/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **niacin 50mg market data**
- **Units sold / yr**
- **5K–6K**
- avg 250–500/product
- **Revenue / yr**
- **$112K–$134K**
- units × avg price
- **Conversion rate**
- **5.5%**
- **Avg BSR**
- **#767**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **70%**
- **Out of stock**
- **1.9%**
- **Avg brand age**
- **85 months**
- **Avg seller age**
- **154 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▲rising
**Sellers**
**32**
**Top-5 brand share**
**83%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 97%
**Open market**
**14%**
- Endurance Products43% - MIROLLA16% - Nutricost15% - NOW Foods4% - Golden Pharm4% - Mirrolla3% - Open — no brand owns it (9 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 95 weeks — -19.4% search growth over the last 90 days.
6K4KSpike '25Black Friday '25Holiday '25 seasonDecMarJunAugNovMarMay
Peak months: Nov, Dec · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/niacin-50mg/trend)
## **Top niacin 50mg search terms**
- **nicotinic acid**29K/yr+7.6%5.8% conv. - **nicotinic acid for hair**15K/yr-43.6%6.4% conv. - **acin**7K/yr-36.4%0.0% conv. - **nicotinic acid supplement**4K/yr+3.1%5.9% conv. - **enduracin 500mg extended release niacin 500 tab**4K/yr+0.7%23.5% conv. - **enduracin**3K/yr-23.1%19.1% conv. - **endur-acin 500mg extended release niacin**2K/yr+1.6%23.3% conv. - **endur-acin**2K/yr-1.3%10.7% conv. - **nicotinic**2K/yr+156.8%0.6% conv. - **acido nicotinico**12K/yr-68.0%2.9% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/niacin-50mg/search-terms)
## **Top niacin 50mg 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%5%$6K10%$12K15%$18K20%$24K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**ENDUR-ACIN - Niacin B3 - ER (Extended Release) 500 mg - Nicotinic Acid - Healthy Heart & Cholesterol Balance Supplement - Low-Flush High-Potency Niacin with 48 HR Timed-Release Matrix - 200 Tablets**Endurance Products**$29.78**4.6★2,293 rev](https://www.amazon.com/dp/B014831ICS) [2**NICOTINIC ACID FOR HAIR 10 ampules x 5ml (VITAMIN B3/NIACIN)/ STRENGTHENING THE HAIR QUALITY/HAIR GROWTH!**MIROLLA**$23.93**4.4★477 rev](https://www.amazon.com/dp/B08424XHT3) [3**Nutricost Niacin (Vitamin B3) 100mg 240 Capsules - with Flushing Non-GMO Gluten Free**Nutricost**$11.90**4.4★2,708 rev](https://www.amazon.com/dp/B08WYVC3ZH) [4**Endurance Products Endur Plain Niacin (Nicotinic Acid) Heart Health & Healthy Cholesterol Balance Supplement Immediate-Release Formula Gluten Free 250mg (100 Tablets)**Endurance Products**$16.27**4.4★624 rev](https://www.amazon.com/dp/B0142UNF4Q) [5**ENDUR-ACIN Niacin Supports Heart & Circulatory Function Extended Release Formula Gluten Free 500mg (100 Tablets)**Endurance Products**$23.30**4.6★142 rev](https://www.amazon.com/dp/B00U1RHAJG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Nicotinic Acid Scalp Serum Ampoules (2-Pack 20 x 3ml) | Vitamin B3 (Niacin) Hair Thickening Tonic | Formula for Scalp Activation | Non-Greasy Leave-In Treatment for Thinning Hair | 60-Day Supply**Golden Pharm**$25.44**20 rev5mo ago](https://www.amazon.com/dp/B0GLZSCWWZ) [**Golden Pharm Nicotinic Acid and Niacinamide Scalp Serum - Thermo-Active Hair Thickening Treatment for Fine and Thinning Hair 3.4 Fl Oz**Golden Pharm**$20.48**35 rev8mo ago](https://www.amazon.com/dp/B0G1TB22KY) [**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**270 rev1y ago](https://www.amazon.com/dp/B0F6DJJB7Y) [**Niacinex Niacin 500mg Extended Time Release 200 Tablets Minimal to No-Flush Vitamin B3 Supplement - Cholesterol Balance Nicotinic Acid Vegan cGMP made in the USA**Niacinex**$26.33**412 rev2y ago](https://www.amazon.com/dp/B0C977TSP7) [**Global Healing Bio-Active Copper Supplement Cu1 - Cuprous Nicotinic Acid Helps Detox Body from Within - Supports Immune System & Red Blood Cell - Niacin Vitamin B3 Chelated Copper - 30 Capsules**Global Healing Center**$49.13**255 rev4y ago](https://www.amazon.com/dp/B09DZYSNL3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Nicotinic Acid Scalp Serum Ampoules (2-Pack 20 x 3ml) | Vitamin B3 (Niacin) Hair Thickening Tonic | Formula for Scalp Activation | Non-Greasy Leave-In Treatment for Thinning Hair | 60-Day Supply**Golden Pharm**$25.44**4.3★**▲ 403%**](https://www.amazon.com/dp/B0GLZSCWWZ) [**ENDUR-ACIN Niacin Supports Heart & Circulatory Function Extended Release Formula Gluten Free 500mg (100 Tablets)**Endurance Products**$23.30**4.6★**▲ 104%**](https://www.amazon.com/dp/B00U1RHAJG) [**Horbach Niacin | Vitamin B3 500mg | 100 Capsules | with Flushing | Non-GMO and Gluten Free Supplement**Horbäach**$8.71**4.0★**▲ 102%**](https://www.amazon.com/dp/B07M5HTYYY) [**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**4.5★**▲ 71%**](https://www.amazon.com/dp/B0F6DJJB7Y) [**Doctors Best Niacin 500 mg Extended Release Supplement for Men & Women - Minimizes Skin Flush Niacin as Nicotinic Acid 500mg Cardiovascular Health Support Gluten Free Vegan Non GMO - 120 Tablets**Doctor's BEST**$15.61**4.6★**▲ 68%**](https://www.amazon.com/dp/B0041SFOY4)
**~~View all trending →~~**
## **What buyers say about niacin 50mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“overall Im happy with the results”*
**Advertised Vs Actual Product**7%
*“As advertised”*
**Value For Money**5%
*“Great value for the money”*
**Heart Health**5%
*“Increased HDL”*
**Ease Of Application**5%
*“Very good tip applicator”*
**Efficiency**4%
*“effective”*
**Ease Of Use**4%
*“Ease of use”*
**Vitamin**3%
*“Great choice for vitamins”*
**Hair Growth**3%
*“better hair growth over time”*
**Side Effects**2%
*“had no reaction at all”*
### **What buyers complain about **
**Allergies**21%
*“Allergic reaction”*
**Side Effects**14%
*“Possible Effects”*
**Dosage**9%
*“I think the dosing is too high”*
**Skin Health**3%
*“My skin burned”*
**Vitamin**3%
*“If youre new to supplementing niacin do not buy this”*
**Heating**2%
*“I didn't feel any warmth while using this product”*
**Value For Money**2%
*“A huge waste of money”*
**Functionality-Overall**2%
*“probably reduces effectiveness”*
**Quality-Overall**2%
*“Inferior Quality”*
**Advertised Vs Actual Product**2%
*“It was my error to not read the description more carefully”*
### **Top return reasons **
**Functionality-Overall**18%
**Side Effects**12%
**Dosage**12%
**Size-Overall**6%
**Calcium**6%
**Value For Money**6%
**Vitamin**6%
**Language Issues**6%
**Product Condition**6%
**Smell**6%
## **Common questions**
- **Is niacin 50mg profitable to sell on Amazon United States?**
- The niche generates $120K/yr across 23 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -19.4%. Flapen's verdict: Skip it (49/100).
- **How competitive is the niacin 50mg niche?**
- 15 brands and 32 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 83% of demand.
- **What do buyers complain about in niacin 50mg?**
- Top complaints mined from reviews: Allergies, Side Effects, Dosage. The return rate is 0.0%.
- **When does demand for niacin 50mg peak?**
- Demand peaks in Nov–Dec; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the niacin 50mg niche?**
- Listings span $8.71–$49.13; the average listing price is $22.31 (sweet spot $15–$100). The average incumbent carries 1,377 reviews — the moat a new listing must climb.
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