---
title: "Slime Kit for Boys — £25K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/toys-games/slime-kit-for-boys"
last_updated: "2026-07-31T14:38:01.612Z"
locale: en
meta:
description: "Niche score 48/100 · £25K/yr market · 48K searches/yr · £10.00 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · £25K/yr market · 48K searches/yr · £10.00 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Slime Kit for Boys — £25K/yr Amazon UK Niche (2026) - Flapen"
---
# **slime kit for boys**
**Skip it**
A small market ($25K/yr) — this niche doesn't clear our bar today.
Market size 6Growth 17Conversion 60Competition 59Returns 97Price range 29Avg price 33Brand share 57Review moat 67Quality gap 78
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****804.03**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****5.1%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****49%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****71%**
top-5 brand share — brands hold most of the demand
**Avg price**
**Okay****£10.00**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****£1.75–£20.45**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-16.3%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£25K**
£25K/yr · 48K searches
According to Flapen's Amazon United Kingdom niche tracking, slime kit for boys is a £25K/yr Amazon United Kingdom market (48K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 48/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **slime kit for boys market data**
- **Units sold / yr**
- **3K–3K**
- avg 0–100/product
- **Revenue / yr**
- **£25K–£30K**
- units × avg price
- **Conversion rate**
- **5.1%**
- **Avg BSR**
- **#125**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **84%**
- **Out of stock**
- **7.0%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **192 days**
## **Competition & brand share**
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▼falling
**Sellers**
**49**
**Top-5 brand share**
**71%**
Top 20: 100%
**Top-5 click share**
**49%**
Top 20: 90%
**Open market**
**23%**
- YOPINSAND27% - Galt15% - hirsrian13% - LAWOHO9% - iKidiki8% - Rowecvce6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -16.3% search growth over the last 90 days.
6K4KSpike '24Holiday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Nov, Dec · busiest ÷ quietest = 7.1×
[**Open Trend **](https://flapen.com/research/uk/toys-games/slime-kit-for-boys/trend)
## **Top slime kit for boys search terms**
- **slime for boys**15K/yr-20.0%3.4% conv. - **slime kit for boys**14K/yr-6.2%5.5% conv. - **slime making kit for boys**7K/yr-5.8%7.0% conv. - **slime boys**5K/yr-14.5%1.9% conv. - **boys slime**7K/yr-34.8%2.5% conv. [**All search terms **](https://flapen.com/research/uk/toys-games/slime-kit-for-boys/search-terms)
## **Top slime kit for boys 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%£9818%£2K12%£3K16%£4K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**6 Pack DIY Slime Kit for Kids Space Theme with Foam Beads Charms & Stars**hirsrian**£10.89**4.0★37 rev](https://www.amazon.co.uk/dp/B0DNSPPZP7) [2**GALT Slime Lab Kids Science Kit with 7 Fun Experiments Glow in the Dark**Galt**£10.11**4.5★3,333 rev](https://www.amazon.co.uk/dp/B06XRGR78J) [3**Monster Slime Kit Galaxy Glow in The Dark Slime Making Kit for Girls Boys**YOPINSAND**£13.34**3.9★105 rev](https://www.amazon.co.uk/dp/B0D78Z2RQS) [4**Metallic Slime Kit Galaxy Glow in The Dark Slime Making Kit for Girls Boy**YOPINSAND**£12.07**4.2★51 rev](https://www.amazon.co.uk/dp/B0F2F19SHL) [5**Dinosaur Slime Kit Galaxy & Glow in The Dark Slime Making Kit for Kids**YOPINSAND**£12.62**4.2★110 rev](https://www.amazon.co.uk/dp/B0D78Z44N7)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**JOYIN Galaxy Color-Changing Putty 4.2oz Slime for Kids Therapy Putty Toys for Adults Sensory Toy Squishy Toys for Kids Anxiety Stress Relief Gifts for Adults Desk Toys**JOYIN**£11.30**297 rev1y ago](https://www.amazon.co.uk/dp/B0FFM8D26F) [**Monster Slime Kit Galaxy Glow in The Dark Slime Making Kit for Girls Boys**YOPINSAND**£13.34**105 rev1y ago](https://www.amazon.co.uk/dp/B0D78Z2RQS) [**Metallic Slime Kit Galaxy Glow in The Dark Slime Making Kit for Girls Boy**YOPINSAND**£12.07**51 rev1y ago](https://www.amazon.co.uk/dp/B0F2F19SHL) [**Dinosaur Slime Kit Galaxy & Glow in The Dark Slime Making Kit for Kids**YOPINSAND**£12.62**110 rev1y ago](https://www.amazon.co.uk/dp/B0D78Z44N7) [**iKidiki Slime Making Kit for Girls Boys Toys for 6 7 8 9 10 11 12 Year Old Girls Boys Gifts Birthday Galaxy Slime Kit 6-12 Year Old Girl Boy Gifts Magic Potions Making Kit Children Fluffy Slime**iKidiki**£20.45**169 rev1y ago](https://www.amazon.co.uk/dp/B0DTTRVBZ2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**CRAZE MAGIC SLIME POOUPSIE Noise Putty 100g Funny Slime Toy in Can for Kids Age 3+ Safe Non-Sticky Play Dough Style Putty Prank Slime Set and Fun Birthday Gift Idea**CRAZE**£2.95**3.9★**▲ 504%**](https://www.amazon.co.uk/dp/B08487VK7G) [**JOYIN Galaxy Color-Changing Putty 4.2oz Slime for Kids Therapy Putty Toys for Adults Sensory Toy Squishy Toys for Kids Anxiety Stress Relief Gifts for Adults Desk Toys**JOYIN**£11.30**4.4★**▲ 256%**](https://www.amazon.co.uk/dp/B0FFM8D26F) [**GALT Space Lab Kids Science Kit with 12 Fun Experiments Glow Stars & More**Galt**£10.17**4.5★**▲ 223%**](https://www.amazon.co.uk/dp/B07M7L1SLR) [**So Slime Mixin sime bucket | Ready to Play Multicolour Slime Bucket | 3 colours availible comes with cute add-in decorations| Gift for kids 6+**Canal Toys**£3.47**4.3★**▲ 137%**](https://www.amazon.co.uk/dp/B088Q4P16X) [**iKidiki Slime Making Kit Toys for 6 7 8 9 10 11 12 Year Old Girls Boys Gifts Birthday Galaxy Slime Kits for Girls 6-12 Year Old Girl Boy Gifts Fluffy Slime Kids Birthday Presents Craft Kits for Kids**iKidiki**£15.82**4.2★**▲ 105%**](https://www.amazon.co.uk/dp/B0D8PRL2BR)
**~~View all trending →~~**
## **What buyers say about slime kit for boys**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Fun/Entertainment Experience**20%
*“Fun for kids. and adults too”*
**Quality-Overall**16%
*“kits is nice”*
**Gifting Purpose**13%
*“Great for a gift”*
**Value For Money**10%
*“Good value”*
**Advertised Vs Actual Product**6%
*“As described”*
**Adhesion/Stickiness**4%
*“Non sticky and really durable”*
**Developmental Needs**2%
*“Great for kids”*
**Fluffiness**2%
*“Great slime my son loves this its his second tub he has ever got of this one”*
**Mess Free**2%
*“Not too messy either”*
**Size-Overall**2%
*“Its a nice size as well”*
### **What buyers complain about **
**Value For Money**9%
*“a little expensive”*
**Mess Free**9%
*“Made a cracking mess”*
**Size-Overall**7%
*“It's very small”*
**Adhesion/Stickiness**7%
*“it came out sticky”*
**Quality-Overall**6%
*“This product was of low quality compared to previous brands I utilized”*
**Functionality-Overall**6%
*“Didn't work”*
**Advertised Vs Actual Product**5%
*“Picture is misleading - contents is poor”*
**Thickness**5%
*“Slime”*
**Product Condition**5%
*“Awful resale item”*
**Ease Of Cleaning**3%
*“This was ok very messy had the glitter everywhere”*
### **Top return reasons **
**Size-Overall**22%
**Gifting Purpose**17%
**Product Condition**9%
**Advertised Vs Actual Product**8%
**Adhesion/Stickiness**6%
**Functionality-Overall**5%
**Defective Material/Parts**5%
**Value For Money**4%
**Leak-Proof**3%
**Quality-Overall**3%
## **Common questions**
- **Is slime kit for boys profitable to sell on Amazon United Kingdom?**
- The niche generates £25K/yr across 31 tracked products. 90-day search growth is -16.3%. Flapen's verdict: Skip it (48/100).
- **How competitive is the slime kit for boys niche?**
- 17 brands and 49 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 71% of demand.
- **What do buyers complain about in slime kit for boys?**
- Top complaints mined from reviews: Value For Money, Mess Free, Size-Overall. The return rate is 0.5%.
- **When does demand for slime kit for boys peak?**
- Demand peaks in Nov–Dec; the busiest month runs 7.1× the quietest.
- **What does it cost to enter the slime kit for boys niche?**
- Listings span £1.75–£20.45; the average listing price is £10.00 (sweet spot $15–$100). The average incumbent carries 804 reviews — the moat a new listing must climb.
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