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Slime

Slime shows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Flapen Score

64
Worth a look
Market size 72Growth 17Conversion 33Competition 92Returns 98Price range 38Avg price 36Brand share 85Review moat 70Quality gap 85
This niche Category average

Is Slime profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Slime is a £776K/yr Amazon United Kingdom market (2.9M searches/yr). The top 5 brands hold 50% of demand. Demand peaks in Dec. Verdict: Worth a look — 64/100.

Slime: 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 -15.9% over the last 90 days and 2.6% of searches end in a purchase.

£776K

revenue / yr

Units sold / yr100K
Search volume / yr-15.9%2.9M
Conversion rate2.6%
Avg price£10.33

Who owns the niche?

The top 5 brands hold 50% of demand, so 50% of the market is open.

50%

open market share

Brands · sellers29 · 65
Top-5 product click share23%
Open market50%
Avg brand age34 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.2★ — the gap to enter on.

0/100

page quality · 72 products

Sponsored placement86%
New entrants (1y)9· 1 succeeded
Avg rating4.2★
Avg reviews695

Top Slime 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

Clicks spread well past the top 5 (23% combined) — an open shelf where new products get seen.

£0£16K£31K£47K£62K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

29 falling

Sellers

65

Top-5 brand share

50%

Top 20: 93%

Top-5 click share

23%

Top 20: 60%

Open market

43%

  • Kaoerdce13%
  • Canal Toys10%
  • Gui Gui9%
  • Rowecvce9%
  • YOPINSAND9%
  • iKidiki7%

Slime demand & seasonality

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

Volume2.9MCVR2.6%Products72Brands29Top 5 Brands50%OOS Rate6.0%Rating4.2★Reviews695Avg BSR#69
100K60KSpike '24Holiday '24Spike '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 2.3×

Top Slime search terms shoppers use

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

  • slime1.7M/yr
  • slime kit495K/yr
  • butter slime150K/yr
  • cloud slime103K/yr
  • slim46K/yr
  • fluffy slime46K/yr
  • slime set51K/yr
  • slime kits for girls66K/yr
  • slime kits28K/yr
  • slime cheap23K/yr

What reviews say buyers love and hate about Slime

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

What buyers love

71% of reviews
Fun/Entertainment Experience18%

Good fun

Quality-Overall17%

appears to be well made

Value For Money10%

Good value for money

Gifting Purpose7%

and very giftable

Color4%

Nice colours

What buyers complain about

70% of reviews
Adhesion/Stickiness18%

Sticky

Size-Overall16%

much larger size

Value For Money8%

not worth the cost

Texture/Consistency-Overall5%

Disappointed the texture broke down an hour later

Quality-Overall4%

Poor quality

Slime return rate & reasons

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

0.4%

Return rate

35%

Fixable by listing

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

1Size-Overall
18%
2Adhesion/Stickiness
14%
3Advertised Vs Actual Product
9%
4Functionality-Overall
8%
5Moist/Dry
6%

Common Slime questions

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

Flapen scores Slime 64/100 on Amazon United Kingdom — Worth a look. The niche generates £776K/yr across 72 tracked products. 1 of 9 products launched in the last 360 days are still selling. Search demand moved -15.9% over the last 90 days.
Search demand for Slime on Amazon United Kingdom peaks in Dec, where the busiest month runs 2.3× the quietest.