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74 inch shower curtain liner

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A deep review moat (46,993 avg reviews) — this niche doesn't clear our bar today.

Market size 15Growth 24Conversion 84Competition 51Returns 93Price range 19Avg price 45Brand share 71Review moat 2Quality gap 33

Returns

Great1.1%

return rate — above 6% kills the launch gate

Conversion

Great9.4%

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

Brand share

Good62%

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

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Avg price

Okay$11.39

avg listing price — sweet spot $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-1.1%

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

Price range

Bad$4.54–$17.45

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

Market size

Bad$61K

$61K/yr · 57K searches

Review moat

Bad46,993

avg incumbent reviews — the moat a new listing must climb

Competition

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 falling

Sellers

23

Top-5 brand share

62%

Open market

31%

  • AmazerBath16%
  • M_lapis14%
  • Tonnali12%
  • Arayarser11%
  • ALYVIA SPRING9%
  • Titanker7%

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$2K8%$5K12%$7K16%$10K1001K10K100K1.0M Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 22 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 97 weeks — -1.1% search growth over the last 90 days.
1K750Holiday '24Prime Day '25Spike '25Spike '26DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Reviews

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

What buyers love

Quality-Overall21%

“Good product and item was as expected”

Value For Money13%

“Great deal”

Advertised Vs Actual Product12%

“Exactly as shown”

Size-Overall5%

“fits as expected”

Weight Light4%

“Nice and lightweight”

Material Quality3%

“Strong materials”

Thickness3%

“Nice thickness”

Durability3%

“has held up well with daily use”

Efficiency3%

“Effective”

Ease Of Cleaning3%

“clean looking in my bathroom”

What buyers complain about

Thickness20%

“Not as thick as it says”

Quality-Overall10%

“Cheap quality”

Magnetic Strength/Adsorption5%

“Magnets are not very strong”

Weight Heavy5%

“made it quite heavy”

Thin5%

“Kinda thin with magnets”

Material Quality4%

“Cheap material”

Size-Overall4%

“Too big”

Weight Light4%

“Too lightweight”

Strength4%

“Not sturdy”

Advertised Vs Actual Product3%

“false advertising”

Top return reasons

Size-Overall39%
Material Quality11%
Thin11%
Advertised Vs Actual Product7%
Quality-Overall6%
Value For Money5%
Weight Heavy3%
Magnetic Strength/Adsorption3%
Thickness2%
Color2%