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51

bath slime

Worth a look

Shows low returns (0.7%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size 21Growth 85Conversion 78Competition 9Returns 97Price range 30Avg price 80Brand share 0Review moat 49Quality gap 83

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Growth

Great+85.8%

90-day search growth — must beat 0% to launch

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Avg price

Great$16.88

avg listing price — sweet spot $15–$100

Conversion

Great7.7%

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

Review moat

Okay1,573.75

avg incumbent reviews — the moat a new listing must climb

Price range

Okay$4.88–$19.39

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Bad$84K

$84K/yr · 64K searches

Competition

Bad90%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, bath slime is a $84K/yr Amazon United States market (64K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Sep–Nov–Dec. Verdict: Worth a look — 51/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

bath slime market data

Units sold / yr
4K–5K
avg 250–500/product
Revenue / yr
$68K–$84K
units × avg price
Conversion rate
7.7%
Avg BSR
#302
Page quality
0%
Prime
100%
Sponsored
100%
Out of stock
0.0%
Avg brand age
26 months
Avg seller age
152 days

Competition & brand share

The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 rising

Sellers

7

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

90%

Top 20: 100%

Open market

0%

  • ZIMPLI73%
  • Tub Works22%
  • Crayola5%
  • Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +85.8% search growth over the last 90 days.
8K6KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Nov, Dec · busiest ÷ quietest = 7.6×

Top bath slime search terms

  • slime baff11K/yr
  • bath slime27K/yr
  • zimpli5K/yr
  • slime bath10K/yr
  • bath slime for kids8K/yr
  • slime soap3K/yr
All search terms

Top bath slime 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%15%$13K30%$25K45%$38K60%$50K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 8 tracked products in this niche — three views at once, no toggling.

What buyers say about bath slime

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

What buyers love

Fun/Entertainment Experience41%

“Makes bathtime fun”

Smell9%

“The slime is fun, smells good, and my kiddo loves playing with it and making potions”

Color6%

“Beautiful colors”

Value For Money5%

“Great value for the money”

Gifting Purpose5%

“Great Xmas gift”

Ease Of Use4%

“Gets used quickly”

Ease Of Cleaning3%

“Fun and cleanable”

Durability3%

“Lasted a long time”

Grip3%

“Fantastic for slip n slide or trampoline instead of soap”

Water Resistance1%

“The ones that got to the water worked fine”

What buyers complain about

Ease Of Cleaning11%

“Instead, it left behind a very sticky, messy residue that was extremely difficult to clean off surfaces”

Durability8%

“Most of them fall apart when you open them”

Quality-Overall7%

“Don't buy cheaply made”

Advertised Vs Actual Product7%

“Doesnt do what it says”

Grip7%

“Extra slippery”

Value For Money6%

“Avoid at all costs”

Mess Free6%

“Messy”

Thickness4%

“They made the bath so thick with slime”

Color4%

“Little too no color”

Smell3%

“I tried to use in a water sensory bin and the smell stuck to my kids hands and the house and was horrid”

Top return reasons

Leak-Proof22%
Advertised Vs Actual Product14%
Value For Money8%
Smell8%
Functionality-Overall6%
Adhesion/Stickiness6%
Size-Overall5%
Color5%
Defective Material/Parts5%
Thin4%

Common questions

Is bath slime profitable to sell on Amazon United States?
The niche generates $84K/yr across 8 tracked products. 90-day search growth is +85.8%. Flapen's verdict: Worth a look (51/100).
How competitive is the bath slime niche?
3 brands and 7 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in bath slime?
Top complaints mined from reviews: Ease Of Cleaning, Durability, Quality-Overall. The return rate is 0.7%.
When does demand for bath slime peak?
Demand peaks in Sep–Nov–Dec; the busiest month runs 7.6× the quietest.
What does it cost to enter the bath slime niche?
Listings span $4.88–$19.39; the average listing price is $16.88 (sweet spot $15–$100). The average incumbent carries 1,574 reviews — the moat a new listing must climb.