---
title: "Niacin Extended Release 500mg — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/niacin-extended-release-500mg"
last_updated: "2026-08-12T07:05:49.440Z"
locale: en
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description: "Amazon product research for niacin extended release 500mg: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for niacin extended release 500mg: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Niacin Extended Release 500mg — Amazon US Product Research"
---
# **Niacin Extended Release 500mg**
**Skip it**
A small market ($35K/yr) — this niche doesn't clear our bar today.
Market size 9Growth 42Conversion 83Competition 25Returns 100Price range 64Avg price 85Brand share 56Review moat 38Quality gap 40
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$18.87**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.9%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$5.25–$32.45**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****71%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+13.6%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,714.56**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****70%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Bad****$35K**
$35K/yr · 21K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
## **Is niacin extended release 500mg profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, niacin extended release 500mg is a $35K/yr Amazon United States market (21K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Apr. Verdict: Skip it — 49/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **niacin extended release 500mg market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–3K**
- avg 100–250/product
- **Revenue / yr**
- **$38K–$47K**
- units × avg price
- **Conversion rate**
- **8.9%**
- **Avg BSR**
- **#361**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **81%**
- **Out of stock**
- **5.4%**
- **Avg brand age**
- **133 months**
- **Avg seller age**
- **180 days**
## **Competition: brands, sellers & click share**
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**69**
**Top-5 brand share**
**71%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**22%**
- Dr. Berg Nutritionals20% - NOW Foods19% - Endurance Products12% - Doctor's BEST11% - Niacinex10% - Nutricost7%
## **niacin extended release 500mg demand & seasonality**
Weekly Amazon search volume, last 100 weeks — +13.6% search growth over the last 90 days.
2K1KSpike '25Holiday '25Spike '26Prime Day '26 seasonDecMarJunAugNovMarMay
Peak months: Apr · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/health-household/niacin-extended-release-500mg/trend)
## **Top niacin extended release 500mg search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **niacin extended release 500mg**6K/yr+33.3%10.0% conv. - **extended release niacin 500mg**4K/yr+49.0%8.1% conv. - **extended release niacin**4K/yr-12.3%7.8% conv. - **niacin 500mg extended release**3K/yr-4.0%7.6% conv. - **slow release niacin**3K/yr-10.3%11.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/niacin-extended-release-500mg/search-terms)
## **Top niacin extended release 500mg 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%10%$3K20%$7K30%$10K40%$14K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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★294 rev](https://www.amazon.com/dp/B0F6DJJB7Y) [2**NOW Foods Supplements Niacin (Vitamin B-3) 500 mg Sustained Release Nutritional Health 250 Tablets**NOW Foods**$14.06**4.3★4,833 rev](https://www.amazon.com/dp/B00028LV8K) [3**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**$15.84**4.6★2,755 rev](https://www.amazon.com/dp/B0041SFOY4) [4**ENDUR-ACIN - Niacin B3 - ER (Extended Release) 500 mg (200 ct)**Endurance Products**$29.78**4.6★2,297 rev](https://www.amazon.com/dp/B014831ICS) [5**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**$26.53**4.4★419 rev](https://www.amazon.com/dp/B0C977TSP7)
**~~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) [**Micro Ingredients Niacin 500mg Per Serving 400 Capsules | Flush Free B3 Vitamins | Double Strength Essential B Vitamin Supplement | Skin Care Health & Energy Support | Non-GMO Gluten Free**Micro Ingredients**$14.62**537 rev1y ago](https://www.amazon.com/dp/B0DLLJLMKD) [**Vitamatic Niacin (Vitamin B3) 500mg 240 Tablets - Non-GMO & Gluten Free**Vitamatic**$9.86**322 rev2y ago](https://www.amazon.com/dp/B0D6RWZDBD) [**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**$26.53**419 rev2y ago](https://www.amazon.com/dp/B0C977TSP7) [**Nutricost Niacin (Vitamin B3) 500mg 240 Capsules with Flushing GMO-Free**Nutricost**$14.88**9,951 rev10y ago](https://www.amazon.com/dp/B01IIDB6JE)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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★**▲ 67%**](https://www.amazon.com/dp/B0F6DJJB7Y) [**Micro Ingredients Niacin 500mg Per Serving 400 Capsules | Flush Free B3 Vitamins | Double Strength Essential B Vitamin Supplement | Skin Care Health & Energy Support | Non-GMO Gluten Free**Micro Ingredients**$14.62**4.6★**▲ 34%**](https://www.amazon.com/dp/B0DLLJLMKD) [**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**$26.53**4.4★**▲ 20%**](https://www.amazon.com/dp/B0C977TSP7) [**Natures Bounty Niacin 500mg Flush Free Cellular Energy Support Supports Nervous System Health 120 Capsules**Nature's Bounty**$15.82**4.7★**▲ 11%**](https://www.amazon.com/dp/B001V9N4KW) [**Vitamatic Niacin (Vitamin B3) 500mg 240 Tablets - Non-GMO & Gluten Free**Vitamatic**$9.86**4.2★**▲ 10%**](https://www.amazon.com/dp/B0D6RWZDBD)
**~~View all trending →~~**
## **What reviews say buyers love and hate about niacin extended release 500mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**25%
*“Amazing quality”*
**Value For Money**12%
*“Reasonable price”*
**Advertised Vs Actual Product**7%
*“As advertised”*
**Vitamin**6%
*“Great choice for vitamins”*
**Efficiency**6%
*“Very effective”*
**Heart Health**5%
*“Great supplement for controlling your cholesterol”*
**Side Effects**3%
*“Zero side effects”*
**Ease Of Chewing/Swallowing**3%
*“The capsules are easy to take”*
**Energy Level**3%
*“positive improvement in both my energy levels”*
**Sleep Quality**2%
*“Im also sleeping much better”*
### **What buyers complain about **
**Allergies**26%
*“Allergic Reaction”*
**Side Effects**19%
*“The side effects are horrible”*
**Dosage**7%
*“I think the dosing is too high”*
**Functionality-Overall**6%
*“Not controlled release, causes flushing”*
**Skin Health**5%
*“Turned red, felt like my skin is sun burned”*
**Vitamin**3%
*“This supplement is very expensive”*
**Value For Money**3%
*“A very costly mistake”*
**Ingredients-Overall**3%
*“This product is horrible”*
**Advertised Vs Actual Product**2%
*“It was my error to not read the description more carefully”*
**Itch Relief**2%
*“Well, for me, I break out into an itch really bad”*
### **Top return reasons **
**Dosage**20%
**Vitamin**20%
**Size-Overall**10%
**Calcium**10%
**Product Condition**10%
**Fever Relief**10%
**Side Effects**10%
**Value For Money**10%
## **Common niacin extended release 500mg questions**
- **Is niacin extended release 500mg profitable to sell on Amazon United States?**
- The niche generates $35K/yr across 16 tracked products. 90-day search growth is +13.6%. Flapen's verdict: Skip it (49/100).
- **How competitive is the niacin extended release 500mg niche?**
- 14 brands and 69 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 71% of demand.
- **What do buyers complain about in niacin extended release 500mg?**
- Top complaints mined from reviews: Allergies, Side Effects, Dosage. The return rate is 0.0%.
- **When does demand for niacin extended release 500mg peak?**
- Demand peaks in Apr; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the niacin extended release 500mg niche?**
- Listings span $5.25–$32.45; the average listing price is $18.87 (sweet spot $15–$100). The average incumbent carries 2,715 reviews — the moat a new listing must climb.
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