Is hanakoko eyeliner stamp profitable to sell on Amazon United States?

The niche generates $165K/yr across 8 tracked products. 5 of 7 products launched in the last 360 days are still selling. 90-day search growth is -12.7%. Flapen's verdict: Skip it (44/100).

How competitive is the hanakoko eyeliner stamp niche?

7 brands and 9 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in hanakoko eyeliner stamp?

Top complaints mined from reviews: Quality-Overall, Moist/Dry, Smudge Resistance. The return rate is 1.8%.

What does it cost to enter the hanakoko eyeliner stamp niche?

Listings span $8.12–$21.65; the average listing price is $11.77 (sweet spot $15–$100). The average incumbent carries 5,012 reviews — the moat a new listing must climb.

hanakoko eyeliner stamp

Skip it

A concentrated shelf (top 5 take 85% of clicks) — this niche doesn't clear our bar today.

Quality gap

Incredible4.0★

avg incumbent rating — lower means beatable quality

Conversion

Great10.4%

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

Returns

Great1.8%

return rate — above 5% kills the launch gate

Price range

Okay$8.12–$21.65

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

Avg price

Okay$11.77

avg listing price — sweet spot $15–$100

Market size

Okay$165K

$165K/yr · 135K searches

Review moat

Bad5,011.63

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad91%

top-5 brand share — brand-locked demand

Growth

Bad-12.7%

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

Competition

Bad85%

top-5 click share — a locked-up shelf

Signals Quality Gap

According to Flapen's Amazon United States niche tracking, hanakoko eyeliner stamp is a $165K/yr Amazon United States market (135K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 44/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

hanakoko eyeliner stamp market data

Units sold / yr: 6K–8K; avg 100–250/product
Revenue / yr: $71K–$94K; units × avg price
Conversion rate: 10.4%
Avg BSR: #206
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 2.1%
Avg brand age: 29 months
Avg seller age: 152 days

Competition & brand share

The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 rising

Sellers

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

85%

Top 20: 100%

Open market

PAGE VINE59%
The Flick Stick10%
Erinde9%
2CHILL7%
SIVSEA6%
Petansy5%
Open — no brand owns it (1 brand, 3%)

Demand

Weekly Amazon search volume, last 35 weeks — -12.7% search growth over the last 90 days.

Open Trend

Top hanakoko eyeliner stamp search terms

rotating eyeliner stamp pen76K/yr +5.0%4.4% conv.
eyeliner stamp pen23K/yr -30.6%3.4% conv.
pagevine eyeliner stamp23K/yr -37.0%5.9% conv.
rotating eyeliner stamp13K/yr -29.4%4.9% conv.

All search terms

Top hanakoko eyeliner stamp 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 8 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

PAGE VINE Winged Eyeliner Stamp Pen Dual Head Rotating Design Quick-Dry Long-Lasting Smudge-Proof for Easy Cat Eye (Black)

PAGE VINE$8.154.1★473 rev

The Flick Stick Winged Eyeliner Stamp For Quick and Easy Cat Eye Makeup SmudgeProof & Waterpoof Eye Liner Cat Eye Stencil Makeup Tool Wingliner Liquid Eyeliner Pens (10mm Classic Midnight Black)

The Flick Stick$15.944.2★38,410 rev

Erinde Winged Eyeliner Stamp Pen Dual Head Rotating Eyeliner Stamp Pencil for Perfect Wings Quick-Dry Long-Lasting Waterproof Smudge-Proof Cat Eye Stamp Liquid Eye Liner Tool for Beginners Black

Erinde$8.123.9★92 rev

2CHILL 2-Pack Rotating Eyeliner Stamp Pen Dual-Ended Winged Eyeliner Stamp Cat Eye Tool Waterproof & Smudge-Proof Long-Lasting Make up Matte Finish Liquid Eyeliner for Beginners Black & Brown

2CHILL$9.994.2★387 rev

SIVSEA Eyeliner Stamp Waterproof Smudge Proof Eyeliners Pen Black

SIVSEA$12.303.8★44 rev

Newest

by launch date

SIVSEA Eyeliner Stamp Waterproof Smudge Proof Eyeliners Pen Black

SIVSEA$12.3044 rev

3mo ago

Unicos Winged Eyeliner Stamp - 90 Ergonomic Cat Eye Makeup Tool with Dual-Sided L/R Symmetry Waterproof & Smudge-Proof Liquid Eye Liner Pen 2.1ml High Capacity Long Lasting Finish 12mm

Unicos$21.6596 rev

5mo ago

Erinde Winged Eyeliner Stamp Pen Dual Head Rotating Eyeliner Stamp Pencil for Perfect Wings Quick-Dry Long-Lasting Waterproof Smudge-Proof Cat Eye Stamp Liquid Eye Liner Tool for Beginners Black

Erinde$8.1292 rev

5mo ago

PAGE VINE Winged Eyeliner Stamp Pen Dual Head Rotating Design Quick-Dry Long-Lasting Smudge-Proof for Easy Cat Eye (Black)

PAGE VINE$8.15473 rev

6mo ago

PAGE VINE Winged Eyeliner Stamp Pen Dual Head Rotating Design Quick-Dry Long-Lasting Smudge-Proof for Easy Cat Eye (Brown)

PAGE VINE$8.41473 rev

6mo ago

What buyers say about hanakoko eyeliner stamp

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

What buyers love

Ease Of Use26%

“really easy to work with”

Eyeliner Quality14%

“Saves me so much time in the morning putting on eyeliner”

Color9%

“I really love this color”

Ease Of Application7%

“Application is easy to put on”

Quality-Overall5%

“These are so much better than I could have even expected they would be”

Value For Money5%

“Reasonable price”

Durability4%

“Really durable”

Smudge Resistance4%

“so far no Smudge no nothing”

Advertised Vs Actual Product3%

“As advertised”

Water Resistance2%

“completely waterproof”

What buyers complain about

Quality-Overall7%

“Low quality”

Moist/Dry7%

“One side completely dry”

Smudge Resistance6%

“it smudges almost immediately”

Color6%

“the brown is horrific”

Durability5%

“But doesnt last”

Ease Of Use5%

“it was not as easy as I hoped it would be”

Functionality-Overall5%

“Doesnt even work”

Value For Money5%

“Waste of money”

Water Resistance4%

“Yeah not smudge or waterproof what so ever- Everytime Ive put it on it disappears”

Size-Overall4%

“Short”

Top return reasons

Eyeliner Quality32%

Functionality-Overall16%

Advertised Vs Actual Product11%

Size-Overall8%

Moist/Dry5%

Shape/Style4%

Quality-Overall3%

Color3%

Ease Of Use3%

Thickness2%

Common questions

Is hanakoko eyeliner stamp profitable to sell on Amazon United States?: The niche generates $165K/yr across 8 tracked products. 5 of 7 products launched in the last 360 days are still selling. 90-day search growth is -12.7%. Flapen's verdict: Skip it (44/100).
How competitive is the hanakoko eyeliner stamp niche?: 7 brands and 9 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in hanakoko eyeliner stamp?: Top complaints mined from reviews: Quality-Overall, Moist/Dry, Smudge Resistance. The return rate is 1.8%.
What does it cost to enter the hanakoko eyeliner stamp niche?: Listings span $8.12–$21.65; the average listing price is $11.77 (sweet spot $15–$100). The average incumbent carries 5,012 reviews — the moat a new listing must climb.