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51

shower curtain liner

Worth a look

Shows a $16.5M/yr market, but a deep review moat (92,041 avg reviews) keeps it on the watch list.

Market size 100Growth 36Conversion 97Competition 15Returns 95Price range 0Avg price 22Brand share 36Review moat 0Quality gap 38

Market size

Incredible$16.5M

$16.5M/yr · 13.5M searches

Conversion

Incredible15.7%

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

Returns

Incredible1.0%

return rate — above 5% kills the launch gate

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+9.1%

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

Brand share

Okay83%

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

Avg price

Bad$7.74

avg listing price — sweet spot $15–$100

Competition

Bad82%

top-5 click share — a locked-up shelf

Review moat

Bad92,040.64

avg incumbent reviews — the moat a new listing must climb

Price range

Bad$4.54–$10.00

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

According to Flapen's Amazon United States niche tracking, shower curtain liner is a $16.5M/yr Amazon United States market (13.5M searches/yr). The top 5 brands hold 83% of demand. Verdict: Worth a look — 51/100.

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

shower curtain liner market data

Units sold / yr
1.0M–1.0M
avg 200,000–250,000/product
Revenue / yr
$7.7M–$7.7M
units × avg price
Conversion rate
15.7%
Avg BSR
#4
Page quality
0%
Prime
100%
Sponsored
91%
Out of stock
0.0%
Avg brand age
46 months
Avg seller age
155 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 flat

Sellers

18

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

11%

  • Barossa Design29%
  • BigFoot21%
  • Mrs Awesome18%
  • LiBa8%
  • EHZNZIE7%
  • ALYVIA SPRING6%
  • Open — no brand owns it (4 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +9.1% search growth over the last 90 days.
400K300KPrime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top shower curtain liner search terms

  • shower curtain liner7.6M/yr
  • shower liner2.0M/yr
  • clear shower curtain liner1.1M/yr
  • shower liner mold and mildew resistant633K/yr
  • shower curtain liners mildew resistant429K/yr
  • clear shower curtain383K/yr
  • plastic shower curtain liner329K/yr
  • shower curtain liners296K/yr
  • shower liner clear86K/yr
  • waterproof shower curtain liners30K/yr
All search terms

Top 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%$1.6M20%$3.3M30%$4.9M40%$6.6M10K100K1.0M Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

What buyers say about shower curtain liner

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

What buyers love

Quality-Overall22%

“The quality is solid”

Value For Money12%

“Very affordable”

Advertised Vs Actual Product11%

“As Described”

Size-Overall5%

“fits as expected”

Durability4%

“Durable material”

Weight Light3%

“Its lightweight and easy to clean”

Efficiency3%

“Works great does the job”

Ease Of Cleaning3%

“Keeps clean”

Material Quality3%

“nice and sturdy material”

Magnetic Strength/Adsorption3%

“Effective, Magnets Keep It in Place”

What buyers complain about

Thickness19%

“Not very thick”

Quality-Overall10%

“Kinda low quality”

Magnetic Strength/Adsorption6%

“Poor magnets”

Thin6%

“thin as liner could be better”

Water Resistance5%

“NOT WATERPROOF”

Material Quality5%

“Flimsy material”

Strength4%

“flimsy plastic”

Durability3%

“is falling apart”

Size-Overall3%

“Too big”

Weight Light3%

“Too lightweight for a shower”

Top return reasons

Size-Overall37%
Thin13%
Material Quality11%
Advertised Vs Actual Product6%
Quality-Overall6%
Value For Money5%
Magnetic Strength/Adsorption3%
Thickness2%
Color2%
Weight Heavy2%

Common questions

Is shower curtain liner profitable to sell on Amazon United States?
The niche generates $16.5M/yr across 11 tracked products. 90-day search growth is +9.1%. Flapen's verdict: Worth a look (51/100).
How competitive is the shower curtain liner niche?
10 brands and 18 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 83% of demand.
What do buyers complain about in shower curtain liner?
Top complaints mined from reviews: Thickness, Quality-Overall, Magnetic Strength/Adsorption. The return rate is 1.0%.
When does demand for shower curtain liner peak?
Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the shower curtain liner niche?
Listings span $4.54–$10.00; the average listing price is $7.74 (sweet spot $15–$100). The average incumbent carries 92,041 reviews — the moat a new listing must climb.