Is plastic shower caps profitable to sell on Amazon United States?

The niche generates $71K/yr across 26 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -4.8%. Flapen's verdict: Skip it (47/100).

How competitive is the plastic shower caps niche?

20 brands and 25 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 63% of demand.

What do buyers complain about in plastic shower caps?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Thickness. The return rate is 0.7%.

When does demand for plastic shower caps peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the plastic shower caps niche?

Listings span $3.66–$9.56; the average listing price is $5.89 (sweet spot $15–$100). The average incumbent carries 5,900 reviews — the moat a new listing must climb.

plastic shower caps

Skip it

Prices mostly outside the sweet spot ($3.66–$9.56) — this niche doesn't clear our bar today.

Conversion

Incredible17.4%

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

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Brand share

Good63%

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

Competition

Good53%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Bad5,899.58

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-4.8%

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

Market size

Bad$71K

$71K/yr · 70K searches

Avg price

Bad$5.89

avg listing price — sweet spot $15–$100

Price range

Bad$3.66–$9.56

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

According to Flapen's Amazon United States niche tracking, plastic shower caps is a $71K/yr Amazon United States market (70K searches/yr). The top 5 brands hold 63% of demand. Verdict: Skip it — 47/100.

Data updated Jul 15, 2026 · scored weekly · How we score niches

plastic shower caps market data

Units sold / yr: 13K–15K; avg 500–750/product
Revenue / yr: $74K–$88K; units × avg price
Conversion rate: 17.4%
Avg BSR: #54
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 44 months
Avg seller age: 173 days

Competition & brand share

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 rising

Sellers

Top-5 brand share

63%

Top 20: 100%

Top-5 click share

53%

Top 20: 95%

Open market

31%

AIDIQIU26%
MAQIHAN13%
Auban10%
Keeygo7%
Reastar7%
LEOBRO6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -4.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top plastic shower caps search terms

plastic shower caps34K/yr +1.6%17.3% conv.
clear shower cap21K/yr -15.3%16.4% conv.
clear shower caps11K/yr -2.6%16.2% conv.
shower cap clear4K/yr -4.6%15.3% conv.

All search terms

Top plastic shower caps 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

30pcs Disposable Shower Caps-Multi-Purpose Thickening Elastic Bath Cap Plastic Waterproof Clear Shower Cap Bath Shower Caps Women Spa Men Hair Caps Home Use Hotel and Hair Salon Travel.(Size 46CM)

AIDIQIU$3.664.6★13,810 rev

MAQIHAN 100 Disposable Shower Caps Large - Thickened Plastic Hair Caps for Deep Conditioning Shower Cap Reusable Waterproof for Women Men Hair Treatment Bath Cap for Long Hair Travel Essentials

MAQIHAN$6.364.7★4,392 rev

Disposable Shower Caps 100 Pcs - Multi-Purpose Thickening Elastic Bath Cap Plastic Waterproof Clear Shower Caps Bath Shower Hair Caps Women Spa Home Use Hotel and Hair Salon Portable Travel(18.1)

AIDIQIU$7.724.6★7,818 rev

Keeygo Disposable Shower Caps 30 PCS Bath Caps Clear Waterproof Plastic Wraps for Women Hotel Travel Essentials Accessories Hair Caps(17.3)

Keeygo$4.014.6★1,951 rev

200 Pcs Bowl Covers for Bread Proofing Plastic Shower Caps for Sourdough Bread Food Covers Stretch Reusable Elastic Keep Food Fresh and Dust Away

Reastar$6.744.5★1,498 rev

Newest

by launch date

Disposable Shower Caps 120pcs 20.5Inch Clear Thick Waterproof Plastic Hair Caps Extra Large Elastic Bath Caps for Women Men Hair Treatment Home Spa Hotel Salon Travel Essentials Accessories

XCXINGJIA$7.1040 rev

3mo ago

Jofuler 100 Pcs Disposable Shower Caps for Women & Men Plastic Shower Cap Waterproof & Durable Clear Large Plastic Hair Caps for Deep Conditioning Hair Treatment Travel Essentials Accessories

Jofuler$4.06119 rev

4mo ago

Comfycheer 50pcs Disposable Shower Caps Large Clear Plastic Shower Cap Waterproof Shower Cap for Women and Men Hair Treatment Large Size 16.5 INCH

Comfycheer$3.9765 rev

8mo ago

100pk Disposable Shower Caps LARGE SIZE 50cm/20in Unisex Plastic Hair Caps for Deep Conditioning Shower Cap Reusable Waterproof for Women Men Thin Design

Alabzphsia$4.2267 rev

8mo ago

200 Bowl Covers Shower Caps for Sourdough Bread Proofing Large Elastic Reusable Plastic Wrap for Food Storage Baking Rising Meal-Prep Fermentation BPA-Free Keep Food Fresh

RXRRXR$6.03919 rev

1y ago

What buyers say about plastic shower caps

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

What buyers love

Value For Money16%

“Amazing value”

Quality-Overall15%

“Decent quality and I love how compact they are”

Size-Overall14%

“fit pretty comfortably”

Advertised Vs Actual Product10%

“Exactly what I ordered”

Ease Of Use8%

“easy to clean”

Durability6%

“These are the durable ones”

Stretchability/Expandability/Elasticity3%

“The elastic is strong”

Efficiency3%

“It works beautifully”

Moist/Dry3%

“Keeps hair completely dry”

Recycle/Reuse2%

“Can even be reused”

What buyers complain about

Size-Overall31%

“Extremely small”

Quality-Overall12%

“Bad quality”

Thickness11%

“Not very large or thick as described”

Durability4%

“it broke immediately”

Stretchability/Expandability/Elasticity4%

“Weak elastic”

Thin3%

“Too thin”

Strength3%

“Small & flimsy”

Value For Money2%

“Waste of money”

Suitability Long Hair2%

“Definitely will not work for long hair”

Advertised Vs Actual Product2%

“Not as advertised”

Top return reasons

Size-Overall52%

Quality-Overall8%

Thin8%

Advertised Vs Actual Product6%

Material Quality5%

Stretchability/Expandability/Elasticity3%

Value For Money3%

Durability2%

Thickness2%

Strength2%

Common questions

Is plastic shower caps profitable to sell on Amazon United States?: The niche generates $71K/yr across 26 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -4.8%. Flapen's verdict: Skip it (47/100).
How competitive is the plastic shower caps niche?: 20 brands and 25 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 63% of demand.
What do buyers complain about in plastic shower caps?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Thickness. The return rate is 0.7%.
When does demand for plastic shower caps peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the plastic shower caps niche?: Listings span $3.66–$9.56; the average listing price is $5.89 (sweet spot $15–$100). The average incumbent carries 5,900 reviews — the moat a new listing must climb.