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So Slime

brand-locked demand (top 5 brands take 100% of clicks) — So Slime doesn't clear our bar today.

Flapen Score

43
Skip it
Market size 5Growth 28Conversion 52Competition 56Returns 98Price range 34Avg price 35Brand share 0Review moat 74Quality gap 70
This niche Category average

Is So Slime profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, So Slime is a £21K/yr Amazon United Kingdom market (48K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Skip it — 43/100.

So Slime: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved +2.6% over the last 90 days and 4.2% of searches end in a purchase.

£21K

revenue / yr

Units sold / yr3K
Search volume / yr+2.6%48K
Conversion rate4.2%
Avg price£10.25

Who owns the niche?

The top 5 brands hold 100% of demand, so 0% of the market is open.

0%

open market share

Brands · sellers5 · 46
Top-5 product click share52%
Open market0%
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 · 24 products

Sponsored placement17%
New entrants (1y)3· 0 succeeded
Avg rating4.3★
Avg reviews526

Top So 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

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

£0£832£2K£2K£3K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

5 falling

Sellers

46

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

52%

Top 20: 97%

Open market

0%

  • Canal Toys84%
  • So Slime Sensations9%
  • So Slime4%
  • YOPINSAND2%
  • Play-Doh1%

So Slime demand & seasonality

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

Volume48KCVR4.2%Products24Brands5Top 5 Brands100%OOS Rate4.9%Rating4.3★Reviews526Avg BSR#189
4K3KSpike '25Black Friday '25Spike '26JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Oct, Nov, Dec · busiest ÷ quietest = 4.6×

Top So Slime search terms shoppers use

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

  • so slime34K/yr
  • diy slime3K/yr
  • so slime diy4K/yr
  • slime diy2K/yr
  • so slime sensations4K/yr

What reviews say buyers love and hate about So Slime

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

What buyers love

88% of reviews
Fun/Entertainment Experience27%

Good interactive play

Quality-Overall15%

The quality of this brands slime is better than the cheaper brands

Gifting Purpose11%

lovely gift

Durability7%

holds up well once its made

Ease Of Use7%

so easy to do

What buyers complain about

83% of reviews
Adhesion/Stickiness20%

Measured everything accurately way too sticky

Value For Money15%

Not worth the price

Advertised Vs Actual Product9%

Picture is misleading - contents is poor

Strength7%

mixer isn't strong enough

Moist/Dry7%

Extremely disappointed as the clay is dry

So Slime return rate & reasons

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

0.5%

Return rate

14%

Fixable by listing

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

1Functionality-Overall
33%
2Adhesion/Stickiness
13%
3Size-Overall
9%
4Leak-Proof
9%
5Gifting Purpose
6%

Common So Slime questions

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

Flapen scores So Slime 43/100 on Amazon United Kingdom — Skip it. The niche generates £21K/yr across 24 tracked products. 0 of 3 products launched in the last 360 days are still selling. Search demand moved +2.6% over the last 90 days.
Search demand for So Slime on Amazon United Kingdom peaks in Oct–Nov–Dec, where the busiest month runs 4.6× the quietest.