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scientist costume kids

Skip it

Soft demand (-71.9% this quarter) — this niche doesn't clear our bar today.

Market size 7Growth 0Conversion 44Competition 42Returns 55Price range 0Avg price 24Brand share 55Review moat 87Quality gap 83

Review moat

Great267.67

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Brand share

Good72%

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

Returns

Good2.8%

return rate — above 5% kills the launch gate

Conversion

Okay3.5%

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

Competition

Okay60%

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

Avg price

Bad£8.64

avg listing price — sweet spot $15–$100

Market size

Bad£29K

£29K/yr · 96K searches

Growth

Bad-71.9%

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

Price range

Bad£6.17–£12.70

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

According to Flapen's Amazon United Kingdom niche tracking, scientist costume kids is a £29K/yr Amazon United Kingdom market (96K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Mar. Verdict: Skip it — 37/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

scientist costume kids market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
£26K–£35K
units × avg price
Conversion rate
3.5%
Avg BSR
#474
Page quality
0%
Prime
100%
Sponsored
78%
Out of stock
20.9%
Avg brand age
36 months
Avg seller age
200 days

Competition & brand share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 rising

Sellers

29

Top-5 brand share

72%

Top 20: 100%

Top-5 click share

60%

Top 20: 100%

Open market

24%

  • AUYAO38%
  • TSHAOUN12%
  • UNGLINGA10%
  • FAHAKO7%
  • Waflyer5%
  • BSBUY4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -71.9% search growth over the last 90 days.
20K15KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Mar · busiest ÷ quietest = 58.7×

Top scientist costume kids search terms

  • scientist costume kids44K/yr
  • mad scientist costume kids15K/yr
  • kids scientist costume11K/yr
  • scientist costume11K/yr
  • mad scientist costume7K/yr
  • science costume kids8K/yr
All search terms

Top scientist costume kids 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%£3K20%£6K30%£9K40%£11K1101001K 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 scientist costume kids

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

What buyers love

Value For Money27%

“Good value costume”

Size-Overall20%

“it is a great fit”

Quality-Overall18%

“Good quality”

Advertised Vs Actual Product15%

“will do the job”

Fun/Entertainment Experience5%

“fun lasted all night”

Comfort-Overall2%

“comfortable enough for hours of pretend play”

Weight Light2%

“Everything feels lightweight”

Durability2%

“The lab coat itself feels well made and durable, with handy pockets and sturdy buttons that should stand up well to regular use”

Stitch/Finish/Polish2%

“The finish on the button holes is adequate”

Material Quality2%

“It feels of a better quality material than only 35% cotton”

What buyers complain about

Quality-Overall31%

“Not the best”

Size-Overall23%

“Came alot smaller than i expected”

Thickness13%

“Very thin and not of good quality”

Advertised Vs Actual Product13%

“Does not contain lab coat - misleading product description”

Top return reasons

Size-Overall70%
Quality-Overall8%
Thin6%
Material Quality5%
Advertised Vs Actual Product3%
Length2%
Transparency1%
Arm Fit1%
Durability1%
Compatibility-Overall1%

Common questions

Is scientist costume kids profitable to sell on Amazon United Kingdom?
The niche generates £29K/yr across 18 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -71.9%. Flapen's verdict: Skip it (37/100).
How competitive is the scientist costume kids niche?
14 brands and 29 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 72% of demand.
What do buyers complain about in scientist costume kids?
Top complaints mined from reviews: Quality-Overall, Size-Overall, Thickness. The return rate is 2.8%.
When does demand for scientist costume kids peak?
Demand peaks in Mar; the busiest month runs 58.7× the quietest.
What does it cost to enter the scientist costume kids niche?
Listings span £6.17–£12.70; the average listing price is £8.64 (sweet spot $15–$100). The average incumbent carries 268 reviews — the moat a new listing must climb.