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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

Incredible0.5%

return rate — above 5% kills the launch gate

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Review moat

Good804.03

avg incumbent reviews — the moat a new listing must climb

Conversion

Good5.1%

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

Competition

Good49%

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

Brand share

Good71%

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

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 '26SepDecMarJunAugNovMarMay

Peak months: Nov, Dec · busiest ÷ quietest = 7.1×

Top slime kit for boys search terms

  • slime for boys15K/yr
  • slime kit for boys14K/yr
  • slime making kit for boys7K/yr
  • slime boys5K/yr
  • boys slime7K/yr
All 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 moat Market 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.

What buyers say about slime kit for boys

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

What buyers love

Fun/Entertainment Experience20%

“Fun for kids. and adults too”

Quality-Overall16%

“kits is nice”

Gifting Purpose13%

“Great for a gift”

Value For Money10%

“Good value”

Advertised Vs Actual Product6%

“As described”

Adhesion/Stickiness4%

“Non sticky and really durable”

Developmental Needs2%

“Great for kids”

Fluffiness2%

“Great slime my son loves this its his second tub he has ever got of this one”

Mess Free2%

“Not too messy either”

Size-Overall2%

“Its a nice size as well”

What buyers complain about

Value For Money9%

“a little expensive”

Mess Free9%

“Made a cracking mess”

Size-Overall7%

“It's very small”

Adhesion/Stickiness7%

“it came out sticky”

Quality-Overall6%

“This product was of low quality compared to previous brands I utilized”

Functionality-Overall6%

“Didn't work”

Advertised Vs Actual Product5%

“Picture is misleading - contents is poor”

Thickness5%

“Slime”

Product Condition5%

“Awful resale item”

Ease Of Cleaning3%

“This was ok very messy had the glitter everywhere”

Top return reasons

Size-Overall22%
Gifting Purpose17%
Product Condition9%
Advertised Vs Actual Product8%
Adhesion/Stickiness6%
Functionality-Overall5%
Defective Material/Parts5%
Value For Money4%
Leak-Proof3%
Quality-Overall3%

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.