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53

dim

Worth a look

Shows low returns (0.2%), but a small market ($66K/yr) keeps it on the watch list.

Market size 16Growth 16Conversion 47Competition 58Returns 99Price range 71Avg price 82Brand share 67Review moat 75Quality gap 62

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Avg price

Great£17.94

avg listing price — sweet spot $15–$100

Review moat

Great491

avg incumbent reviews — the moat a new listing must climb

Price range

Good£5.92–£37.38

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

Brand share

Good65%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Good50%

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

Conversion

Okay3.8%

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

Market size

Bad£66K

£66K/yr · 97K searches

Growth

Bad-17.0%

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

According to Flapen's Amazon United Kingdom niche tracking, dim is a £66K/yr Amazon United Kingdom market (97K searches/yr). The top 5 brands hold 65% of demand. Verdict: Worth a look — 53/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

dim market data

Units sold / yr
4K–5K
avg 100–250/product
Revenue / yr
£72K–£90K
units × avg price
Conversion rate
3.8%
Avg BSR
#596
Page quality
0%
Prime
85%
Sponsored
56%
Out of stock
7.7%
Avg brand age
45 months
Avg seller age
180 days

Competition & brand share

The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.

Brands

16 falling

Sellers

21

Top-5 brand share

65%

Top 20: 100%

Top-5 click share

50%

Top 20: 91%

Open market

28%

  • DIM17%
  • Health4All15%
  • Epigenetics13%
  • ALPHA0110%
  • Lifetropics8%
  • Generic7%

Demand

Weekly Amazon search volume, last 39 weeks — -17.0% search growth over the last 90 days.
2K1KOct '25Dec '25Jan '26Mar '26Apr '26May '26Jul '26

Top dim search terms

  • dim supplement31K/yr
  • dim29K/yr
  • calcium d glucarate16K/yr
  • dim supplements7K/yr
  • diindolylmethane8K/yr
  • dim supplements for women4K/yr
  • calcium d-glucarate3K/yr
All search terms

Top dim 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%4%£3K8%£5K12%£8K16%£11K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)3 products missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about dim

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

What buyers love

Quality-Overall19%

“Great quality price”

Hormonal Balance11%

“I think in long term I will see better results with my hormonal balance”

Value For Money7%

“Reasonably sustainable price”

Vitamin7%

“Very good supplement”

Weight Loss6%

“sticking to a balanced diet most of the time”

Energy Level6%

“Slight energy increase”

Regulates Digestion5%

“Good for digestion”

Side Effects5%

“no side effects”

Ease Of Use4%

“Easy to use”

Sleep Quality4%

“it kept me awake all night”

What buyers complain about

Dosage16%

“No improvement on taking”

Weight Loss13%

“I have lost some weight”

Smell13%

“Smell”

Regulates Digestion13%

“Had digestive issues with this so I did regret buying it”

Advertised Vs Actual Product13%

“Misleading title vs label”

Value For Money6%

“Not the cheapest”

Acid Regulator/Stomach Ache Relief3%

“Caused terrible bloating and wind”

Breathability3%

“This product game me the most horrendous bloating”

Side Effects3%

“Shame I'm not able to stand another day of tgis to feel other benefits”

Top return reasons

Functionality-Overall33%
Focus Enhancement33%
Pain Relief-Overall33%

Common questions

Is dim profitable to sell on Amazon United Kingdom?
The niche generates £66K/yr across 27 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -17.0%. Flapen's verdict: Worth a look (53/100).
How competitive is the dim niche?
16 brands and 21 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 65% of demand.
What do buyers complain about in dim?
Top complaints mined from reviews: Dosage, Weight Loss, Smell. The return rate is 0.2%.
What does it cost to enter the dim niche?
Listings span £5.92–£37.38; the average listing price is £17.94 (sweet spot $15–$100). The average incumbent carries 491 reviews — the moat a new listing must climb.