---
title: "mad scientist costume kids — Niche Verdict: Skip it (38/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/mad-scientist-costume-kids"
last_updated: "2026-07-13T23:28:05.795Z"
locale: en
meta:
  description: "soft demand (-51.3% this quarter) — mad scientist costume kids doesn't clear our bar today."
  "og:description": "soft demand (-51.3% this quarter) — mad scientist costume kids doesn't clear our bar today."
  "og:title": "mad scientist costume kids — Niche Verdict: Skip it (38/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **mad scientist costume kids**

**Skip it**

Soft demand (-51.3% this quarter) — this niche doesn't clear our bar today.

Market size 2Growth 0Conversion 20Competition 65Returns 29Price range 76Avg price 86Brand share 61Review moat 90Quality gap 40

**Review moat**

**Great****209.05**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Great****$19.31**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$8.97–$34.29**

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

**Competition**

**Good****46%**

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

**Brand share**

**Good****68%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Returns**

**Okay****5.5%**

return rate — above 6% kills the launch gate

**Conversion**

**Bad****1.6%**

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

**Market size**

**Bad****$9K**

$9K/yr · 30K searches

**Growth**

**Bad****-51.3%**

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

## **Competition**

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**12 **▲rising

**Sellers**

**14**

**Top-5 brand share**

**68%**

**Open market**

**26%**

- mifengda30% - Keymall12% - Kyson11% - ZZIHAN8% - INNOCHEER7% - 2 MULE TEAM6%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$3718%$74312%$1K16%$1K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![mifengda Mad Scientist Costume Doctor White Lab Coat Halloween Crazy Mad Scientist Physicist Costume Include Lab Coat Wig Glasses Mustache Eyebrows Gloves Bow Tie for Cosplay Pretend Play(Medium)](https://m.media-amazon.com/images/I/413gOIKz29L.jpg)**mifengda Mad Scientist Costume Doctor White Lab Coat Halloween Crazy Mad Scientist Physicist Costume Include Lab Coat Wig Glasses Mustache Eyebrows Gloves Bow Tie for Cosplay Pretend Play(Medium)**mifengda**$17.39**4.3★68 rev](https://www.amazon.com/dp/B0D3HK5C3H) [2![mifengda Mad Scientist Costume Kids Doctor White Lab Coat Halloween Crazy Mad Scientist Physicist Costume Include Lab Coat Wig Glasses Mustache Eyebrows Gloves Bow Tie for Cosplay Pretend Play](https://m.media-amazon.com/images/I/413gOIKz29L.jpg)**mifengda Mad Scientist Costume Kids Doctor White Lab Coat Halloween Crazy Mad Scientist Physicist Costume Include Lab Coat Wig Glasses Mustache Eyebrows Gloves Bow Tie for Cosplay Pretend Play**mifengda**$15.87**4.3★68 rev](https://www.amazon.com/dp/B0CCY3GZ5N) [3![ZZIHAN Scientist Costume for Kids Mad Scientist Lab Coat Costume 56](https://m.media-amazon.com/images/I/412B5gspPLL.jpg)**ZZIHAN Scientist Costume for Kids Mad Scientist Lab Coat Costume 56**ZZIHAN**$13.94**4.7★329 rev](https://www.amazon.com/dp/B0BVV53F8S) [4![Kyson Kids Mad Scientist Costume 6 Pieces Science Crazy Lab Coat and Goggles Wig Gloves Bowtie Magnifier Halloween Dress Up (Set A)](https://m.media-amazon.com/images/I/416sBgEcFRL.jpg)**Kyson Kids Mad Scientist Costume 6 Pieces Science Crazy Lab Coat and Goggles Wig Gloves Bowtie Magnifier Halloween Dress Up (Set A)**Kyson**$33.58**5.0★13 rev](https://www.amazon.com/dp/B0DB5HXN4S) [5![Keymall Mad Scientist Costume for Kids 6 Pieces Halloween Crazy Mad Wig Scientist Lab Coat Mustache Goggles Gloves Bow Tie (Set A)](https://m.media-amazon.com/images/I/41Hd+b2+g2L.jpg)**Keymall Mad Scientist Costume for Kids 6 Pieces Halloween Crazy Mad Wig Scientist Lab Coat Mustache Goggles Gloves Bow Tie (Set A)**Keymall**$34.29**4.3★27 rev](https://www.amazon.com/dp/B0C5CCWWCP)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Mad Scientist Costume Kids 6 Pieces Bowtie for Dressing Up Dressing Glasses A Pair of Laboratory Gloves Magnifying Glass Wig PVC Science Name Badge Pass for Science Birthday Party Decorations](https://m.media-amazon.com/images/I/4193GG6B-vL.jpg)**Mad Scientist Costume Kids 6 Pieces Bowtie for Dressing Up Dressing Glasses A Pair of Laboratory Gloves Magnifying Glass Wig PVC Science Name Badge Pass for Science Birthday Party Decorations**2 MULE TEAM**$12.55**8 rev7mo ago](https://www.amazon.com/dp/B0G3WRP2Y5) [![Puteraya 12 PCS Kids Old Man Mad Scientist Costume Crazy Physicist Wig Doctor White Lab Coat Costume for Halloween Cosplay Party (4-6 Years(115cm-125cm))](https://m.media-amazon.com/images/I/41tvZb8yPhL.jpg)**Puteraya 12 PCS Kids Old Man Mad Scientist Costume Crazy Physicist Wig Doctor White Lab Coat Costume for Halloween Cosplay Party (4-6 Years(115cm-125cm))**Puteraya**$19.79**8 rev11mo ago](https://www.amazon.com/dp/B0FJKS15CC) [![UNGLINGA Kids Scientist Costume Lab Coat Doctor Pretend Play for Boys Girls with Goggles Glasses ID Card Gloves for Science Projects Career day Halloween M](https://m.media-amazon.com/images/I/41iTS1Vm8XL.jpg)**UNGLINGA Kids Scientist Costume Lab Coat Doctor Pretend Play for Boys Girls with Goggles Glasses ID Card Gloves for Science Projects Career day Halloween M**UNGLINGA**$9.97**197 rev1y ago](https://www.amazon.com/dp/B0F4R1W76B) [![Kyson 6 Pieces Mad Scientist Costume for Girls-Crazy Science Lab Coat Wig Goggles Gloves Bowtie Brooch for Halloween Dress Up (Set A)](https://m.media-amazon.com/images/I/41PFmEYiBxL.jpg)**Kyson 6 Pieces Mad Scientist Costume for Girls-Crazy Science Lab Coat Wig Goggles Gloves Bowtie Brooch for Halloween Dress Up (Set A)**Kyson**$28.24**15 rev1y ago](https://www.amazon.com/dp/B0DB8J96QY) [![Kyson Kids Mad Scientist Costume 6 Pieces Science Crazy Lab Coat and Goggles Wig Gloves Bowtie Magnifier Halloween Dress Up (Set A)](https://m.media-amazon.com/images/I/416sBgEcFRL.jpg)**Kyson Kids Mad Scientist Costume 6 Pieces Science Crazy Lab Coat and Goggles Wig Gloves Bowtie Magnifier Halloween Dress Up (Set A)**Kyson**$33.58**13 rev1y ago](https://www.amazon.com/dp/B0DB5HXN4S)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![VOGRYE Lab Coat for Girl - White Unisex Kids Doctors Coat Kids Vet Doctor Dress Up Costume for Girl (8/10 White)](https://m.media-amazon.com/images/I/31BFowFdc2L.jpg)**VOGRYE Lab Coat for Girl - White Unisex Kids Doctors Coat Kids Vet Doctor Dress Up Costume for Girl (8/10 White)**VOGRYE**$12.97**4.4★**▲ 1000%**](https://www.amazon.com/dp/B0CGWPJS2H) [![DR Uniforms Kids Lab Coat for Boys & Girls White Science Doctor Jacket Long Sleeve School Lab Coat for STEM Learning Size 8/10](https://m.media-amazon.com/images/I/31MiZDWJjHL.jpg)**DR Uniforms Kids Lab Coat for Boys & Girls White Science Doctor Jacket Long Sleeve School Lab Coat for STEM Learning Size 8/10**DR Instruments**$16.66**4.6★**▲ 1000%**](https://www.amazon.com/dp/B086SFJ2JQ) [![mifengda Mad Scientist Costume Doctor White Lab Coat Halloween Crazy Mad Scientist Physicist Costume Include Lab Coat Wig Glasses Mustache Eyebrows Gloves Bow Tie for Cosplay Pretend Play(Medium)](https://m.media-amazon.com/images/I/413gOIKz29L.jpg)**mifengda Mad Scientist Costume Doctor White Lab Coat Halloween Crazy Mad Scientist Physicist Costume Include Lab Coat Wig Glasses Mustache Eyebrows Gloves Bow Tie for Cosplay Pretend Play(Medium)**mifengda**$17.39**4.3★**▲ 982%**](https://www.amazon.com/dp/B0D3HK5C3H) [![Mad Scientist Costume Kids 6 Pieces Bowtie for Dressing Up Dressing Glasses A Pair of Laboratory Gloves Magnifying Glass Wig PVC Science Name Badge Pass for Science Birthday Party Decorations](https://m.media-amazon.com/images/I/4193GG6B-vL.jpg)**Mad Scientist Costume Kids 6 Pieces Bowtie for Dressing Up Dressing Glasses A Pair of Laboratory Gloves Magnifying Glass Wig PVC Science Name Badge Pass for Science Birthday Party Decorations**2 MULE TEAM**$12.55**3.8★**▲ 755%**](https://www.amazon.com/dp/B0G3WRP2Y5) [![UNGLINGA Kids Scientist Costume Lab Coat Doctor Pretend Play for Boys Girls with Goggles Glasses ID Card Gloves for Science Projects Career day Halloween M](https://m.media-amazon.com/images/I/41iTS1Vm8XL.jpg)**UNGLINGA Kids Scientist Costume Lab Coat Doctor Pretend Play for Boys Girls with Goggles Glasses ID Card Gloves for Science Projects Career day Halloween M**UNGLINGA**$9.97**4.5★**▲ 402%**](https://www.amazon.com/dp/B0F4R1W76B)

**~~View all trending →~~**

## **Demand**

Weekly Amazon search volume, last 36 weeks — -51.3% search growth over the last 90 days.

3K2KSpike '26Nov '25Dec '25Jan '26Mar '26Apr '26May '26

## **Reviews**

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

### **What buyers love **

**Size-Overall**26%

*“Fit well”*

**Value For Money**13%

*“it was affordable without compromising the quality”*

**Advertised Vs Actual Product**13%

*“it does the job”*

**Quality-Overall**11%

*“Good quality”*

**Stem Skills**8%

*“Great science kit”*

**Material Quality**6%

*“Nice material too”*

**Accuracy-Overall**4%

*“The set was accurate and complete”*

**Fun/Entertainment Experience**2%

*“It also it great fun for the kiddos to play with in a water table”*

**Add-Ons/Attachments**2%

*“love all the accessories”*

**Educational-Overall**2%

*“Was great for career day at school”*

### **What buyers complain about **

**Size-Overall**33%

*“the whole thing came in a small bag”*

**Quality-Overall**20%

*“Not well made”*

**Ease Of Cleaning**10%

*“Dirty”*

**Material Quality**8%

*“this was very cheap”*

**Product Condition**5%

*“Arrived used”*

**Advertised Vs Actual Product**5%

*“However, they still appear in all photos of kids wearing the set and that makes it confusing for the buyer”*

**Thickness**3%

*“It is pretty thin”*

**Strength**3%

*“Flimsy, cheap material”*

### **Top return reasons **

**Size-Overall**76%

**Quality-Overall**4%

**Value For Money**3%

**Advertised Vs Actual Product**3%

**Material Quality**3%

**Product Condition**2%

**Length**1%

**Sleeve Fit**1%

**Defective Material/Parts**1%

**Thin**1%