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39

black shower curtain liner

Skip it

Prices mostly outside the sweet spot ($5.71–$15.16) — this niche doesn't clear our bar today.

Market size 35Growth 22Conversion 84Competition 24Returns 84Price range 2Avg price 27Brand share 40Review moat 6Quality gap 45

Conversion

Great9.1%

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

Returns

Great1.6%

return rate — above 5% kills the launch gate

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay81%

top-5 brand share — brands hold most of the demand

Market size

Okay$170K

$170K/yr · 201K searches

Avg price

Okay$9.27

avg listing price — sweet spot $15–$100

Competition

Bad71%

top-5 click share — a locked-up shelf

Growth

Bad-5.9%

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

Review moat

Bad38,071.38

avg incumbent reviews — the moat a new listing must climb

Price range

Bad$5.71–$15.16

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

According to Flapen's Amazon United States niche tracking, black shower curtain liner is a $170K/yr Amazon United States market (201K searches/yr). The top 5 brands hold 81% of demand. Verdict: Skip it — 39/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

black shower curtain liner market data

Units sold / yr
20K–25K
avg 1,500–2,000/product
Revenue / yr
$185K–$232K
units × avg price
Conversion rate
9.1%
Avg BSR
#30
Page quality
0%
Prime
100%
Sponsored
92%
Out of stock
0.0%
Avg brand age
41 months
Avg seller age
210 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 falling

Sellers

15

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

12%

  • TIKABC30%
  • Barossa Design18%
  • AmazerBath17%
  • Italian Collection8%
  • Bath Bliss8%
  • FINEBAT7%
  • Open — no brand owns it (5 brands, 12%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -5.9% search growth over the last 90 days.
5K4KPrime Day '24Prime Day '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

Top black shower curtain liner search terms

  • black shower curtain liner68K/yr
  • black shower liner61K/yr
  • black plastic shower curtain14K/yr
  • shower curtain liner black14K/yr
  • shower liner black8K/yr
  • black shower liner plastic10K/yr
  • black shower liner mold and mildew resistant6K/yr
  • dark shower curtain liner5K/yr
  • black plastic shower curtain liner6K/yr
  • black shower curtain liner plastic5K/yr
All search terms

Top black shower curtain liner 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%10%$17K20%$34K30%$51K40%$68K1K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

What buyers say about black shower curtain liner

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

What buyers love

Quality-Overall22%

“Amazing quality”

Value For Money9%

“Good price”

Advertised Vs Actual Product9%

“As advertised”

Durability7%

“Sturdy/durable”

Color7%

“good color”

Size-Overall4%

“Excellent fit”

Material Quality4%

“The material feels solid”

Thickness3%

“Nice product and the curtain its is thick”

Efficiency3%

“Does the job”

Water Resistance3%

“Great very water proof”

What buyers complain about

Thickness12%

“Very thin material”

Quality-Overall10%

“because this item is trash”

Water Resistance8%

“it doesnt fully meet expectations for waterproof performance”

Advertised Vs Actual Product6%

“False Advertisement”

Stain Resistance6%

“Leaves Black Stain”

Strength5%

“Flimsy very cheap looking”

Material Quality4%

“Fabric is cheap”

Washability4%

“Don't wash in wash machine will come apart”

Durability4%

“Liner comes off in flakes”

Weight Light3%

“Not heavy at all would not purchase again”

Top return reasons

Size-Overall26%
Material Quality22%
Thin11%
Advertised Vs Actual Product9%
Color8%
Value For Money5%
Quality-Overall5%
Magnetic Strength/Adsorption2%
Thickness2%
Water Resistance1%

Common questions

Is black shower curtain liner profitable to sell on Amazon United States?
The niche generates $170K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -5.9%. Flapen's verdict: Skip it (39/100).
How competitive is the black shower curtain liner niche?
11 brands and 15 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 81% of demand.
What do buyers complain about in black shower curtain liner?
Top complaints mined from reviews: Thickness, Quality-Overall, Water Resistance. The return rate is 1.6%.
When does demand for black shower curtain liner peak?
Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the black shower curtain liner niche?
Listings span $5.71–$15.16; the average listing price is $9.27 (sweet spot $15–$100). The average incumbent carries 38,071 reviews — the moat a new listing must climb.