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35

96 inch shower curtain liner

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A deep review moat (38,225 avg reviews) — this niche doesn't clear our bar today.

Market size 29Growth 25Conversion 95Competition 22Returns 50Price range 26Avg price 55Brand share 17Review moat 6Quality gap 33

Conversion

Incredible12.3%

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

Avg price

Good$12.64

avg listing price — sweet spot $15–$100

Returns

Okay3.0%

return rate — above 6% kills the launch gate

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$125K

$125K/yr · 80K searches

Price range

Okay$7.50–$17.65

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

Growth

Okay+0.1%

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

Competition

Bad73%

top-5 click share — a locked-up shelf

Brand share

Bad93%

top-5 brand share — brand-locked demand

Review moat

Bad38,224.58

avg incumbent reviews — the moat a new listing must climb

Competition

The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

11

Top-5 brand share

93%

Open market

3%

  • AmazerBath44%
  • ALYVIA SPRING16%
  • Mrs Awesome11%
  • Amazer11%
  • HARBOREST10%
  • EHZNZIE4%
  • Open — no brand owns it (1 brand, 3%)

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%10%$13K20%$25K30%$38K40%$50K1K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 12 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 98 weeks — +0.1% search growth over the last 90 days.
2K2KHoliday '24Spike '26DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.1×

Reviews

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

What buyers love

Quality-Overall18%

“Beautifully made”

Advertised Vs Actual Product13%

“As advertised”

Size-Overall8%

“Fits great”

Weight Light7%

“I love the clear shower curtain with the weight”

Value For Money6%

“Absolutely worth the price”

Weight Heavy5%

“heavy weight”

Material Quality4%

“Material is durable/waterproof”

Thickness4%

“Perfect thickness and size for my shower”

Ease Of Use3%

“Easy to use”

Strength2%

“Sturdy”

What buyers complain about

Weight Heavy13%

“There are heavy”

Thickness12%

“It's not much thicker than a sandwich bag”

Quality-Overall9%

“Garbage Product”

Smell8%

“Stinky”

Advertised Vs Actual Product6%

“Misrepresentation”

Value For Money5%

“Charged full price for clearly used item”

Magnetic Strength/Adsorption4%

“The magnetic is not strong at all”

Weight Light3%

“It is very light for a heavy duty curtain”

Strength3%

“bunches up”

Product Condition3%

“Charged full price for clearly used item”

Top return reasons

Size-Overall52%
Thin9%
Advertised Vs Actual Product6%
Material Quality5%
Quality-Overall4%
Weight Heavy3%
Value For Money3%
Magnetic Strength/Adsorption2%
Product Condition2%
Thickness2%