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63

nmn

Launch it

A $1.1M/yr market growing +2.0% this quarter with returns at 0.1% — clears our launch bar.

Market size 79Growth 27Conversion 59Competition 31Returns 100Price range 82Avg price 86Brand share 55Review moat 89Quality gap 77

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Review moat

Great225.83

avg incumbent reviews — the moat a new listing must climb

Avg price

Great£19.21

avg listing price — sweet spot $15–$100

Price range

Great£10.68–£37.50

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

Market size

Great£1.1M

£1.1M/yr · 1.1M searches

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Conversion

Good5.1%

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

Brand share

Good72%

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

Competition

Okay66%

top-5 click share — leaders hold, buyers still browse

Growth

Okay+2.0%

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

According to Flapen's Amazon United Kingdom niche tracking, nmn is a £1.1M/yr Amazon United Kingdom market (1.1M searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Mar. Verdict: Launch it — 63/100.

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

nmn market data

Units sold / yr
50K–60K
avg 3,000–4,000/product
Revenue / yr
£961K–£1.2M
units × avg price
Conversion rate
5.1%
Avg BSR
#612
Page quality
0%
Prime
100%
Sponsored
83%
Out of stock
6.5%
Avg brand age
33 months
Avg seller age
160 days

Competition & brand share

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 falling

Sellers

24

Top-5 brand share

72%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

23%

  • kumproicha27%
  • MetaSuperfoods21%
  • Aoruilia10%
  • Glorfktion7%
  • Stronglife7%
  • Refined Wellness5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +2.0% search growth over the last 90 days.
70K50KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Mar · busiest ÷ quietest = 1.9×

Top nmn search terms

  • nmn415K/yr
  • nmn supplements uk317K/yr
  • nmn supplements uk pure99K/yr
  • nmn supplements 500mg19K/yr
  • mnm supplements uk48K/yr
  • best nmn supplements uk pure32K/yr
  • nmn supplements35K/yr
  • mnm26K/yr
  • bettervits nmn18K/yr
  • nmn resveratrol16K/yr
All search terms

Top nmn 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%£110K20%£220K30%£330K40%£440K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 18 tracked products in this niche — three views at once, no toggling.

What buyers say about nmn

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

What buyers love

Energy Level19%

“Energy boost”

Quality-Overall14%

“Good quality formula”

Value For Money8%

“Great product great price”

Advertised Vs Actual Product6%

“Just as advertised”

Ease Of Chewing/Swallowing6%

“capsules are easy to take”

Skin Health4%

“my skin looks better”

Vitamin4%

“Fantastic Supplement”

Focus Enhancement4%

“concentrate a lot better”

Ease Of Use3%

“Useful”

Nutritional Content3%

“intended as a straightforward daily addition to a general wellness routine”

What buyers complain about

Dosage17%

“Dose too high”

Functionality-Overall8%

“Didn't work for me”

Side Effects6%

“For me it had a horrible effect after second day”

Advertised Vs Actual Product6%

“This is not accurate and false advertising”

Energy Level6%

“I have to say that I have not seen any improvement in my energy levels”

Regulates Digestion5%

“Unfortunately, I experienced mild yet persistent digestive discomfort and felt noticeably restless, making it difficult to stay calm during my busy shifts”

Quality-Overall4%

“Poor quality”

Ingredients-Overall3%

“the listing shows different ingredient information again”

Accuracy-Overall3%

“Poor results”

Value For Money3%

“Priced at NMN levels despite uncertainty over contents”

Top return reasons

Joint Pain33%
Advertised Vs Actual Product33%
Side Effects33%

Common questions

Is nmn profitable to sell on Amazon United Kingdom?
The niche generates £1.1M/yr across 18 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is +2.0%. Flapen's verdict: Launch it (63/100).
How competitive is the nmn niche?
15 brands and 24 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 72% of demand.
What do buyers complain about in nmn?
Top complaints mined from reviews: Dosage, Functionality-Overall, Side Effects. The return rate is 0.1%.
When does demand for nmn peak?
Demand peaks in Mar; the busiest month runs 1.9× the quietest.
What does it cost to enter the nmn niche?
Listings span £10.68–£37.50; the average listing price is £19.21 (sweet spot $15–$100). The average incumbent carries 226 reviews — the moat a new listing must climb.