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Slime Kit

Slime Kit shows low returns (0.4%), but soft demand (-4.2% this quarter) keeps it on the watch list.

Flapen Score

51
Worth a look
Market size 33Growth 23Conversion 52Competition 58Returns 98Price range 38Avg price 59Brand share 41Review moat 55Quality gap 75
This niche Category average

Is Slime Kit profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Slime Kit is a £158K/yr Amazon United Kingdom market (287K searches/yr). The top 5 brands hold 80% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Worth a look — 51/100.

Slime Kit: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -4.2% over the last 90 days and 4.2% of searches end in a purchase.

£158K

revenue / yr

Units sold / yr15K
Search volume / yr-4.2%287K
Conversion rate4.2%
Avg price£13.07

Who owns the niche?

The top 5 brands hold 80% of demand, so 20% of the market is open.

20%

open market share

Brands · sellers15 · 54
Top-5 product click share50%
Open market20%
Avg brand age31 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.

0/100

page quality · 30 products

Sponsored placement77%
New entrants (1y)2· 0 succeeded
Avg rating4.3★
Avg reviews1,319

Top Slime Kit products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.

£0£6K£13K£19K£25K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

15 falling

Sellers

54

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

50%

Top 20: 88%

Open market

17%

  • YOPINSAND31%
  • iKidiki26%
  • Elmer's17%
  • Original Stationery4%
  • Galt3%
  • Funewest3%
  • Open — no brand owns it (9 brands, 17%)

Slime Kit demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume287KCVR4.2%Products30Brands15Top 5 Brands80%OOS Rate6.1%Rating4.3★Reviews1,319Avg BSR#85
50K30KSpike '24Holiday '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Oct, Nov, Dec · busiest ÷ quietest = 3.6×

Top Slime Kit search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • slime making kit203K/yr
  • slime making16K/yr
  • slime making kit for girls20K/yr
  • make your own slime10K/yr
  • slime maker12K/yr
  • make your own slime kit11K/yr
  • diy slime kit6K/yr
  • slim kit5K/yr
  • fluffy slime kit4K/yr

What reviews say buyers love and hate about Slime Kit

What buyers mention most, as a share of all reviews.

What buyers love

80% of reviews
Quality-Overall26%

Good Quality

Fun/Entertainment Experience18%

lots of fun

Gifting Purpose10%

Great for a gift

Value For Money9%

Worth the money

Developmental Needs4%

Good for kids

What buyers complain about

72% of reviews
Adhesion/Stickiness18%

Not sticky at all

Value For Money14%

Over priced

Quality-Overall7%

Very poor quality

Texture/Consistency-Overall6%

Awful slime, the texture was like honey for every pot

Functionality-Overall6%

Didn't work

Slime Kit return rate & reasons

Why buyers send it back, as a share of all return requests.

0.4%

Return rate

16%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Leak-Proof
22%
2Adhesion/Stickiness
17%
3Functionality-Overall
12%
4Advertised Vs Actual Product
7%
5Size-Overall
6%

Common Slime Kit questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Slime Kit 51/100 on Amazon United Kingdom — Worth a look. The niche generates £158K/yr across 30 tracked products. 0 of 2 products launched in the last 360 days are still selling. Search demand moved -4.2% over the last 90 days.
Search demand for Slime Kit on Amazon United Kingdom peaks in Oct–Nov–Dec, where the busiest month runs 3.6× the quietest.