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nicotinamide 500mg

Worth a look

Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 61Growth 39Conversion 98Competition 20Returns 100Price range 79Avg price 92Brand share 44Review moat 39Quality gap 33

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible16.3%

search→purchase rate — share of searches ending in a sale

Avg price

Great$21.92

avg listing price — sweet spot $15–$100

Price range

Great$7.41–$46.16

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Good$526K

$526K/yr · 147K searches

Brand share

Okay79%

top-5 brand share — brands hold most of the demand

Growth

Okay+11.3%

90-day search growth — must beat 0% to launch

Review moat

Okay2,600.4

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Bad76%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, nicotinamide 500mg is a $526K/yr Amazon United States market (147K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Oct–Nov. Verdict: Worth a look — 56/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

nicotinamide 500mg market data

Units sold / yr
20K–25K
avg 1,500–2,000/product
Revenue / yr
$438K–$548K
units × avg price
Conversion rate
16.3%
Avg BSR
#60
Page quality
0%
Prime
100%
Sponsored
73%
Out of stock
0.0%
Avg brand age
59 months
Avg seller age
160 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 flat

Sellers

17

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

16%

  • aSquared Nutrition23%
  • Horbäach21%
  • Nutricost19%
  • biophix9%
  • DEAL SUPPLEMENT7%
  • Natures Craft5%
  • Open — no brand owns it (5 brands, 16%)

Demand & seasonality

Weekly Amazon search volume, last 68 weeks — +11.3% search growth over the last 90 days.
5K3KPrime Day '25Spike '25Spike '26AprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Oct, Nov · busiest ÷ quietest = 3.2×

Top nicotinamide 500mg search terms

  • nicotinamide 500mg91K/yr
  • vitamin b3 nicotinamide 500mg24K/yr
  • nicotinamide vitamin b38K/yr
  • nicotinamide 500 mg5K/yr
  • nicotinamide supplement7K/yr
  • b3 nicotinamide4K/yr
  • vitamin b3 nicotinamide4K/yr
  • nicotinamide b33K/yr
  • niclosamide- 500mg1K/yr
All search terms

Top nicotinamide 500mg 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%$53K20%$105K30%$158K40%$210K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 15 tracked products in this niche — three views at once, no toggling.

What buyers say about nicotinamide 500mg

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall21%

“Premium quality with visible benefits”

Vitamin12%

“Vitamins”

Advertised Vs Actual Product11%

“As advertised”

Value For Money9%

“Economical”

Skin Health5%

“My skin cleared up”

Sleep Quality4%

“It helps me to sleep”

Efficiency4%

“Seems to have a positive effect”

Ease Of Chewing/Swallowing4%

“Easy to swallow”

Nutritional Content3%

“Food supplement”

Ease Of Use3%

“Convenient”

What buyers complain about

Side Effects9%

“I got very bad side affects”

Allergies8%

“Allergic to it”

Functionality-Overall8%

“This product didnt work for me”

Vitamin8%

“Vitamin B3. Took for a month and half”

Dosage6%

“500mg is too much”

Pain Relief-Overall5%

“Made me ill”

Heart Health5%

“Causes major heart palpitations”

Quality-Overall4%

“Nothing remarkable to report”

Nutritional Content3%

“Product is not health to consume”

Sinus Relief3%

“I feel it now in my sinuses”

Top return reasons

Advertised Vs Actual Product25%
Vitamin13%
Heating13%
Dosage13%
Fever Relief13%
Safety Standards13%
Size-Overall13%

Common questions

Is nicotinamide 500mg profitable to sell on Amazon United States?
The niche generates $526K/yr across 15 tracked products. 90-day search growth is +11.3%. Flapen's verdict: Worth a look (56/100).
How competitive is the nicotinamide 500mg niche?
11 brands and 17 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 79% of demand.
What do buyers complain about in nicotinamide 500mg?
Top complaints mined from reviews: Side Effects, Allergies, Functionality-Overall. The return rate is 0.0%.
When does demand for nicotinamide 500mg peak?
Demand peaks in Oct–Nov; the busiest month runs 3.2× the quietest.
What does it cost to enter the nicotinamide 500mg niche?
Listings span $7.41–$46.16; the average listing price is $21.92 (sweet spot $15–$100). The average incumbent carries 2,600 reviews — the moat a new listing must climb.