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Vitamin B3

Fail

Demand is soft, at -17.3% this quarter, so Vitamin B3 is a Fail.

Flapen Score
44
44 / 100
Ranks 1,348 of 2,035 Health & Personal Care niches · −4 vs the category median of 48
Market size
£139K/yr126K searches / yr
90-day growth
-17.3%search demand this quarter
Competition
76%top-5 click share · 12 brands · 14 sellers

Flapen Score

Vitamin B3 against its category

The dotted line is the Health & Personal Care average. Past it, Vitamin B3 is stronger. Inside it, weaker.

44Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Vitamin B3 market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Vitamin B3 126K times last year and spent an estimated £139K. The top 5 brands take 85% of clicks. Demand peaks in Oct. Flapen scores it 44 out of 100, a Fail.

01 · Demand

10.0% of searches ended in a purchase last week.

Shoppers searched for this 126K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 10.0% of those searches ended in a purchase. Searches in the last 90 days moved -17.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £139K a year.

Searches, last 12 months
126K
Growth, 90 days vs prior 90
-17.3%
Conversion, latest week
10.0%
Market size, estimated
£139Ka year
Peak month
October1.7× the quietest month
Top search term
vitamin b332K searches a year

02 · Price

A sale here is worth £11.09.

Listings sell for £11.09 on average, from £4.94 to £28.85. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 500 to 750 of them. At £11.09 that is £6K to £8K a year per listing.

Average price
£11.09under the $15 to $100 sweet spot
Price range
£4.94–£28.85
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
13K–15K
Units per listing a year
500–750
Revenue per listing a year
£6K–£8K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

73% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #9 within Vitamins. It carries 2,850 reviews at 4.45 stars, so a new listing needs social proof before a better product.

Sponsored listings
73%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#9in Vitamins
Average rating
4.45 starsAmazon United Kingdom average 4.36 stars
Average reviews
2,850per listing
Listings tracked
15

04 · Newcomers

Brands here are settling in.

The brands on the shelf have sold for 53 months on average, so the names here are settling in.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
53 months

Products

Top Vitamin B3 products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 76% of clicks. A locked shelf that new listings rarely crack.

£0£14K£28K£42K£56K1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

12 falling

Sellers

14

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

12%

  • Health4All43%
  • Carlyle17%
  • Nutricost12%
  • ALPHA019%
  • Horbäach3%
  • Bettervits3%
  • Open — no brand owns it (6 brands, 12%)

Demand

Vitamin B3 search demand

Weekly searches over the year, seasonality beneath. Pick a range.

4K3KSpike '24Prime Day '25Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Oct · busiest ÷ quietest = 1.7×

Search terms

Top Vitamin B3 search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • vitamin b332K/yr
  • nicotinamide17K/yr
  • vitamin b3 niacinamide12K/yr
  • nicotinamide 500mg7K/yr
  • b3 vitamin12K/yr
  • niacinamide supplement10K/yr
  • b3 nicotinamide 500mg7K/yr
  • vitamin b3 nicotinamide 500mg3K/yr
  • vitamin b3 niacin5K/yr
  • vit b33K/yr

Reviews and returns

What reviews say buyers love and hate about Vitamin B3

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Advertised Vs Actual Product12%+0.31

Confusing? Nicotinamide or Niacin? This says Nicotinamide on the front but Niacin on the back.

not a jar as advertised

Size-Overall12%−0.05

Very big capsules

Too big

I found these to be very big

Strength12%−0.07

very low potency

Are not as strong as I though No flush no work

Allergies8%−0.05

Red, itching rash

itchy rashes on sides of face

Color Fading/Discoloration8%−0.05

have to say no change at all in skin colour

Love

Value For Money16%+0.86

Worth every penny

Is what it is at a reasonable price

Good price

Vitamin16%+1.03

Good vitamin

Vitamins are easy to digest

Healthy vitamin

Quality-Overall15%

Its good produ

High quality product

Im impressed with the quality

Advertised Vs Actual Product15%+0.31

Item description accuracy

Good as Described

Seems to work

Energy Level7%+0.66

Increased energy

wonderful side effect of noticeable increased energy

you will really see an improvement in energy level

Return

0.1% Return rate 57% Fixable by listing

Advertised Vs Actual Product57%▁▁▁█▁█

Confusing? Nicotinamide or Niacin? This says Nicotinamide on the front but Niacin on the back.

not a jar as advertised

Ease Of Chewing/Swallowing29%▁▁▁▁█▁

Hard to swallow

difficult to swallow

Value For Money14%▁▁▁▁█▁

Waste of money

FAQ

Common Vitamin B3 questions

Answered from the same tracked data.