Is wonderskin eyeliner profitable to sell on Amazon United States?

The niche generates $2.4M/yr across 10 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -21.6%. Flapen's verdict: Worth a look (51/100).

How competitive is the wonderskin eyeliner niche?

3 brands and 47 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in wonderskin eyeliner?

Top complaints mined from reviews: Durability, Smudge Resistance, Value For Money. The return rate is 0.9%.

When does demand for wonderskin eyeliner peak?

Demand peaks in Jan–Feb–Mar–Jun–Dec; the busiest month runs 7.2× the quietest.

What does it cost to enter the wonderskin eyeliner niche?

Listings span $6.50–$17.59; the average listing price is $15.27 (sweet spot $15–$100). The average incumbent carries 12,189 reviews — the moat a new listing must climb.

wonderskin eyeliner

Worth a look

Shows beatable incumbent ratings (3.9★), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Quality gap

Incredible3.9★

avg incumbent rating — lower means beatable quality

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Market size

Incredible$2.4M

$2.4M/yr · 2.2M searches

Avg price

Great$15.27

avg listing price — sweet spot $15–$100

Conversion

Great7.1%

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

Price range

Bad$6.50–$17.59

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

Review moat

Bad12,188.5

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-21.6%

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

Competition

Bad83%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals Quality Gap

According to Flapen's Amazon United States niche tracking, wonderskin eyeliner is a $2.4M/yr Amazon United States market (2.2M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Mar–Jun–Dec. Verdict: Worth a look — 51/100.

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

wonderskin eyeliner market data

Units sold / yr: 150K–200K; avg 25,000–30,000/product
Revenue / yr: $2.3M–$3.1M; units × avg price
Conversion rate: 7.1%
Avg BSR: #10
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 62 months
Avg seller age: 136 days

Competition & brand share

The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

83%

Top 20: 100%

Open market

Wonderskin79%
REVLON15%
PERSONA7%

Demand & seasonality

Weekly Amazon search volume, last 95 weeks — -21.6% search growth over the last 90 days.

Peak months: Jan, Feb, Mar, Jun, Dec · busiest ÷ quietest = 7.2×

Open Trend

Top wonderskin eyeliner search terms

wonderskin eyeliner1.2M/yr -29.6%5.8% conv.
revlon colorstay eyeliner243K/yr +2.2%6.7% conv.
wonderskin eyeliner waterproof242K/yr -48.4%5.7% conv.
persona eyeliner pencil waterproof117K/yr +32.4%2.7% conv.
persona eyeliner81K/yr +95.3%1.4% conv.
revlon eyeliner100K/yr +3.0%4.8% conv.
wonder skin eyeliner51K/yr -14.0%4.1% conv.
persona cosmetics eyeliner25K/yr +72.7%2.4% conv.
wonderskin 1440 longwear eyeliner29K/yr -50.7%5.5% conv.
persona eyeliner duo chocolate and plum13K/yr +35.1%1.7% conv.

All search terms

Top wonderskin eyeliner 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 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Wonderskin Eyeliner Pencil 1440 Longwear Deep Black Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Liquorice)

Wonderskin$16.323.8★8,167 rev

Wonderskin Eyeliner Pencil 1440 Longwear Brown Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Kalamata)

Wonderskin$16.933.7★2,059 rev

Revlon ColorStay Pencil Waterproof Eyeliner Smudge-Proof Eye Makeup with Built-In Sharpener Long-Lasting Matte Finish 201 Black 2 pack

REVLON$10.564.5★51,636 rev

Revlon ColorStay Pencil Waterproof Eyeliner Smudge-Proof Eye Makeup with Built-In Sharpener Long-Lasting Matte Finish 202 Black Brown 0.01 oz

REVLON$6.504.5★51,636 rev

Wonderskin Eyeliner Pencil 1440 Longwear Black Glitter Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Black Truffle)

Wonderskin$17.123.8★737 rev

Newest

by launch date

PERSONA 24HR Chocolate Waterproof Eyeliner Pencil | Creamy Smudgeable Pencil for Lash Line & Waterline | All-Day to All-Night Wear | Vegan Cruelty-Free Paraben-Free | Made in USA

PERSONA$16.98527 rev

9mo ago

PERSONA 24HR Stone Waterproof Eyeliner Pencil | Creamy Smudgeable Pencil for Lash Line & Waterline | All-Day to All-Night Wear | Vegan Cruelty-Free Paraben-Free | Made in USA

PERSONA$17.51527 rev

9mo ago

Wonderskin Lipliner Pencil - 360 Contour Lipliner Long Lasting Sharpenable Lip Pencil Waterproof and Transfer-Proof Nude Lip Liner (Walnut)

Wonderskin$15.984,446 rev

10mo ago

Wonderskin Eyeliner Pencil 1440 Longwear Deep Purple Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof

Wonderskin$17.59750 rev

1y ago

Wonderskin Eyeliner Pencil 1440 Longwear Black Glitter Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Black Truffle)

Wonderskin$17.12737 rev

2y ago

What buyers say about wonderskin eyeliner

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

What buyers love

Eyeliner Quality16%

“It does last much much longer than your typical eyeliner”

Color12%

“Color is accurate”

Durability10%

“It stays on all day”

Smudge Resistance9%

“lasts all day without smudging”

Quality-Overall9%

“EVERYTHING THEY SAY GOOD IS TRUE”

Soft Feel6%

“Love the smoothness”

Advertised Vs Actual Product5%

“Does what it claims”

Ease Of Application4%

“Easy to apply”

Ease Of Use3%

“Goes on easy”

Value For Money3%

“Good price”

What buyers complain about

Durability21%

“Did not last”

Smudge Resistance12%

“NOT SMUDGE PROOF”

Value For Money9%

“A little expensive”

Advertised Vs Actual Product8%

“Didnt work as advertised”

Eyeliner Quality8%

“A expensive useless eyeliner”

Water Resistance5%

“Not smudge or waterproof”

Functionality-Overall5%

“now barely works”

Quality-Overall3%

“NOT the quality advertised”

Color3%

“not a solid color”

Ease Of Use2%

“difficult to put on”

Top return reasons

Eyeliner Quality36%

Color17%

Advertised Vs Actual Product12%

Functionality-Overall6%

Durability5%

Water Resistance4%

Defective Material/Parts4%

Smudge Resistance3%

Value For Money2%

Product Condition1%

Common questions

Is wonderskin eyeliner profitable to sell on Amazon United States?: The niche generates $2.4M/yr across 10 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -21.6%. Flapen's verdict: Worth a look (51/100).
How competitive is the wonderskin eyeliner niche?: 3 brands and 47 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in wonderskin eyeliner?: Top complaints mined from reviews: Durability, Smudge Resistance, Value For Money. The return rate is 0.9%.
When does demand for wonderskin eyeliner peak?: Demand peaks in Jan–Feb–Mar–Jun–Dec; the busiest month runs 7.2× the quietest.
What does it cost to enter the wonderskin eyeliner niche?: Listings span $6.50–$17.59; the average listing price is $15.27 (sweet spot $15–$100). The average incumbent carries 12,189 reviews — the moat a new listing must climb.