---
title: "Scientist Costume Kids — £29K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/scientist-costume-kids"
last_updated: "2026-07-31T13:08:32.333Z"
locale: en
meta:
description: "Niche score 37/100 · £29K/yr market · 96K searches/yr · £8.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 37/100 · £29K/yr market · 96K searches/yr · £8.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Scientist Costume Kids — £29K/yr Amazon UK Niche (2026) - Flapen"
---
# **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**
**Great****267.67**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Returns**
**Good****2.8%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****3.5%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****60%**
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 ~~](https://flapen.com/research/methodology)
## **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 '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar · busiest ÷ quietest = 58.7×
[**Open Trend **](https://flapen.com/research/uk/fashion/scientist-costume-kids/trend)
## **Top scientist costume kids search terms**
- **scientist costume kids**44K/yr-73.6%2.6% conv. - **mad scientist costume kids**15K/yr-68.5%1.6% conv. - **kids scientist costume**11K/yr-69.9%2.7% conv. - **scientist costume**11K/yr-65.6%1.5% conv. - **mad scientist costume**7K/yr-48.2%0.4% conv. - **science costume kids**8K/yr-84.0%1.1% conv. [**All search terms **](https://flapen.com/research/uk/fashion/scientist-costume-kids/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 moatMarket 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.
### **Top sellers**
by 90-day click share
[1**AUYAO Childs White Lab Coat for Kids Scientist Doctor Costume Unisex Cotton Medical Dress Up Halloween Cosplay**AUYAO**£6.23**4.1★540 rev](https://www.amazon.co.uk/dp/B0DK6XK2PK) [2**TSHAOUN 7 Pcs Kids Scientist Costume Set Doctor Costume Set Childrens Lab Coat with Liquid Dropper Glasses Work Card Scientist Doctor Role Play Set for Boys and Girls (White)**TSHAOUN**£7.59**4.4★392 rev](https://www.amazon.co.uk/dp/B0BWTTDCGR) [3**FAHAKO Kids Cotton Lab Coat Boys Girls Scientist Laboratory Costume Size L**FAHAKO**£9.39**4.1★84 rev](https://www.amazon.co.uk/dp/B0F1CYRKCX) [4**Waflyer Childrens White Lab Coats Childrens Medical Coat Unisex Cotton Polyester Scientist Dress Up Scrubs Doctor Workwear Students Uniform Food Coat Boys and Girls Fancy Dress XL**Waflyer**£7.92**4.1★758 rev](https://www.amazon.co.uk/dp/B0872Y3CS8) [5**AUYAO Childs White Lab Coat for Kids Scientist Doctor Costume Unisex Cotton Medical Dress Up Halloween Cosplay**AUYAO**£6.41**4.1★540 rev](https://www.amazon.co.uk/dp/B0DK6ZL6DN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Ballery Kids Lab Coat Doctor Scientist Costume Set with Goggles ID Card Magnifying Glass Halloween Costumes for Kids Pretend Play Outfit for Boys & Girls (L)**Ballery**£8.64**11 rev4mo ago](https://www.amazon.co.uk/dp/B0GT4PVG7P) [**Cotton Kids Lab Coat White Lab Coat for Boys and Girls Ages 5-12 Scientist Costume Kids Doctor Costume Durable Science Laboratory Coats Perfect For School Science Projects Halloween Cosplay (XL)**AIUNBEST**£8.00**3 rev4mo ago](https://www.amazon.co.uk/dp/B0GSKLV1FG) [**Wbesty 6Pc Kids Mad Scientist Costume with Lab Coat Frame Wig Gloves Bowtie & Magnifier Dress Up & Science Role Play for Kids 7-8Y**Wbesty**£12.70**7 rev6mo ago](https://www.amazon.co.uk/dp/B0GGH2MDQ6) [**BSBUY Lab Coat Women Men White Cotton Polyester Medical Coat Science Doctors Scientist Coat Unisex Adult Lab Coat Chemistry Laboratory Food Coat Workwear Uniform Fancy Dress Costume with Pocket(M)**BSBUY**£6.17**325 rev1y ago](https://www.amazon.co.uk/dp/B0FJ5PD4PG) [**FAHAKO Kids Cotton Lab Coat Boys Girls Scientist Laboratory Costume Size L**FAHAKO**£9.39**84 rev1y ago](https://www.amazon.co.uk/dp/B0F1CYRKCX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ballery Kids Lab Coat Doctor Scientist Costume Set with Goggles ID Card Magnifying Glass Halloween Costumes for Kids Pretend Play Outfit for Boys & Girls (L)**Ballery**£8.64**4.7★**▲ 182%**](https://www.amazon.co.uk/dp/B0GT4PVG7P) [**Cotton Kids Lab Coat White Lab Coat for Boys and Girls Ages 5-12 Scientist Costume Kids Doctor Costume Durable Science Laboratory Coats Perfect For School Science Projects Halloween Cosplay (XL)**AIUNBEST**£8.00**4.4★**▲ 181%**](https://www.amazon.co.uk/dp/B0GSKLV1FG) [**Wbesty 6Pc Kids Mad Scientist Costume with Lab Coat Frame Wig Gloves Bowtie & Magnifier Dress Up & Science Role Play for Kids 7-8Y**Wbesty**£12.70**4.7★**▲ 168%**](https://www.amazon.co.uk/dp/B0GGH2MDQ6) [**AUYAO Lab Coat Women Men White Cotton Polyester Medical Coat Science Doctors Scientist Coat Unisex Adult Labcoat Chemistry Laboratory Food Coat Workwear Uniform Fancy Dress Costume with Pocket(M)**AUYAO**£7.49**4.0★**▲ 142%**](https://www.amazon.co.uk/dp/B0FGCZRF4R) [**BSBUY Lab Coat Women Men White Cotton Polyester Medical Coat Science Doctors Scientist Coat Unisex Adult Lab Coat Chemistry Laboratory Food Coat Workwear Uniform Fancy Dress Costume with Pocket(M)**BSBUY**£6.17**3.2★**▲ 115%**](https://www.amazon.co.uk/dp/B0FJ5PD4PG)
**~~View all trending →~~**
## **What buyers say about scientist costume kids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**27%
*“Good value costume”*
**Size-Overall**20%
*“it is a great fit”*
**Quality-Overall**18%
*“Good quality”*
**Advertised Vs Actual Product**15%
*“will do the job”*
**Fun/Entertainment Experience**5%
*“fun lasted all night”*
**Comfort-Overall**2%
*“comfortable enough for hours of pretend play”*
**Weight Light**2%
*“Everything feels lightweight”*
**Durability**2%
*“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/Polish**2%
*“The finish on the button holes is adequate”*
**Material Quality**2%
*“It feels of a better quality material than only 35% cotton”*
### **What buyers complain about **
**Quality-Overall**31%
*“Not the best”*
**Size-Overall**23%
*“Came alot smaller than i expected”*
**Thickness**13%
*“Very thin and not of good quality”*
**Advertised Vs Actual Product**13%
*“Does not contain lab coat - misleading product description”*
### **Top return reasons **
**Size-Overall**70%
**Quality-Overall**8%
**Thin**6%
**Material Quality**5%
**Advertised Vs Actual Product**3%
**Length**2%
**Transparency**1%
**Arm Fit**1%
**Durability**1%
**Compatibility-Overall**1%
## **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.
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