---
title: "Wonderskin Eyeliner — $2.4M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/wonderskin-eyeliner"
last_updated: "2026-08-09T09:17:16.779Z"
locale: en
meta:
description: "Niche score 51/100 · $2.4M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $2.4M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Wonderskin Eyeliner — $2.4M/yr Amazon US Niche (2026) - Flapen"
---
# **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.
Market size 95Growth 14Conversion 75Competition 14Returns 96Price range 23Avg price 76Brand share 0Review moat 21Quality gap 96
**Quality gap**
**Incredible****3.9★**
avg incumbent rating — lower means beatable quality
**Returns**
**Incredible****0.9%**
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**
**Great****7.1%**
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**
**Bad****12,188.5**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-21.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0")
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 ~~](https://flapen.com/research/methodology)
## **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**
**47**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**0%**
- Wonderskin79% - REVLON15% - PERSONA7%
## **Demand & seasonality**
Weekly Amazon search volume, last 95 weeks — -21.6% search growth over the last 90 days.
60K40KSpike '25Prime Day '25Holiday '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jan, Feb, Mar, Jun, Dec · busiest ÷ quietest = 7.2×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/wonderskin-eyeliner/trend)
## **Top wonderskin eyeliner search terms**
- **wonderskin eyeliner**1.2M/yr-29.6%5.8% conv. - **revlon colorstay eyeliner**243K/yr+2.2%6.7% conv. - **wonderskin eyeliner waterproof**242K/yr-48.4%5.7% conv. - **persona eyeliner pencil waterproof**117K/yr+32.4%2.7% conv. - **persona eyeliner**81K/yr+95.3%1.4% conv. - **revlon eyeliner**100K/yr+3.0%4.8% conv. - **wonder skin eyeliner**51K/yr-14.0%4.1% conv. - **persona cosmetics eyeliner**25K/yr+72.7%2.4% conv. - **wonderskin 1440 longwear eyeliner**29K/yr-50.7%5.5% conv. - **persona eyeliner duo chocolate and plum**13K/yr+35.1%1.7% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/wonderskin-eyeliner/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.
0%15%$362K30%$723K45%$1.1M60%$1.4M1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Wonderskin Eyeliner Pencil 1440 Longwear Deep Black Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Liquorice)**Wonderskin**$16.32**3.8★8,167 rev](https://www.amazon.com/dp/B0BSR2ZBK1) [2**Wonderskin Eyeliner Pencil 1440 Longwear Brown Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Kalamata)**Wonderskin**$16.93**3.7★2,059 rev](https://www.amazon.com/dp/B0BSR4GDGH) [3**Revlon ColorStay Pencil Waterproof Eyeliner Smudge-Proof Eye Makeup with Built-In Sharpener Long-Lasting Matte Finish 201 Black 2 pack**REVLON**$10.56**4.5★51,636 rev](https://www.amazon.com/dp/B01J1A3TFW) [4**Revlon ColorStay Pencil Waterproof Eyeliner Smudge-Proof Eye Makeup with Built-In Sharpener Long-Lasting Matte Finish 202 Black Brown 0.01 oz**REVLON**$6.50**4.5★51,636 rev](https://www.amazon.com/dp/B000H3I2JG) [5**Wonderskin Eyeliner Pencil 1440 Longwear Black Glitter Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Black Truffle)**Wonderskin**$17.12**3.8★737 rev](https://www.amazon.com/dp/B0CN1BRWVZ)
**~~View all top sellers →~~**
### **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**$16.98**527 rev9mo ago](https://www.amazon.com/dp/B0FRB7YYSZ) [**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**$17.51**527 rev9mo ago](https://www.amazon.com/dp/B0FR9Z9XGL) [**Wonderskin Lipliner Pencil - 360 Contour Lipliner Long Lasting Sharpenable Lip Pencil Waterproof and Transfer-Proof Nude Lip Liner (Walnut)**Wonderskin**$15.98**4,446 rev10mo ago](https://www.amazon.com/dp/B0FMYNBYFW) [**Wonderskin Eyeliner Pencil 1440 Longwear Deep Purple Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof**Wonderskin**$17.59**750 rev1y ago](https://www.amazon.com/dp/B0DGY6KX1C) [**Wonderskin Eyeliner Pencil 1440 Longwear Black Glitter Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Black Truffle)**Wonderskin**$17.12**737 rev2y ago](https://www.amazon.com/dp/B0CN1BRWVZ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$17.51**3.9★**▲ 92%**](https://www.amazon.com/dp/B0FR9Z9XGL) [**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**$16.98**3.9★**▲ 86%**](https://www.amazon.com/dp/B0FRB7YYSZ) [**Wonderskin Eyeliner Pencil 1440 Longwear Black Glitter Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Black Truffle)**Wonderskin**$17.12**3.8★**▲ 83%**](https://www.amazon.com/dp/B0CN1BRWVZ) [**Wonderskin Eyeliner Pencil 1440 Longwear Brown Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Brown Sugar)**Wonderskin**$17.24**3.7★**▲ 63%**](https://www.amazon.com/dp/B0BJLD27MJ) [**Wonderskin Eyeliner Pencil 1440 Longwear Brown Eyeliner Pencil - Waterproof Sharpenable & Smudge Proof (Kalamata)**Wonderskin**$16.93**3.7★**▲ 36%**](https://www.amazon.com/dp/B0BSR4GDGH)
**~~View all trending →~~**
## **What buyers say about wonderskin eyeliner**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Eyeliner Quality**16%
*“It does last much much longer than your typical eyeliner”*
**Color**12%
*“Color is accurate”*
**Durability**10%
*“It stays on all day”*
**Smudge Resistance**9%
*“lasts all day without smudging”*
**Quality-Overall**9%
*“EVERYTHING THEY SAY GOOD IS TRUE”*
**Soft Feel**6%
*“Love the smoothness”*
**Advertised Vs Actual Product**5%
*“Does what it claims”*
**Ease Of Application**4%
*“Easy to apply”*
**Ease Of Use**3%
*“Goes on easy”*
**Value For Money**3%
*“Good price”*
### **What buyers complain about **
**Durability**21%
*“Did not last”*
**Smudge Resistance**12%
*“NOT SMUDGE PROOF”*
**Value For Money**9%
*“A little expensive”*
**Advertised Vs Actual Product**8%
*“Didnt work as advertised”*
**Eyeliner Quality**8%
*“A expensive useless eyeliner”*
**Water Resistance**5%
*“Not smudge or waterproof”*
**Functionality-Overall**5%
*“now barely works”*
**Quality-Overall**3%
*“NOT the quality advertised”*
**Color**3%
*“not a solid color”*
**Ease Of Use**2%
*“difficult to put on”*
### **Top return reasons **
**Eyeliner Quality**36%
**Color**17%
**Advertised Vs Actual Product**12%
**Functionality-Overall**6%
**Durability**5%
**Water Resistance**4%
**Defective Material/Parts**4%
**Smudge Resistance**3%
**Value For Money**2%
**Product Condition**1%
## **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.
## **Related niches in Beauty & Personal Care**
- 75 [**bio oil lotion**](https://flapen.com/research/us/beauty-personal-care/bio-oil-lotion)$654K/yr+95.9%**Worth a look**- 75 [**glossier futuredew serum**](https://flapen.com/research/us/beauty-personal-care/glossier-futuredew-serum)$344K/yr+383.6%**Worth a look**- 75 [**press on toenails**](https://flapen.com/research/us/beauty-personal-care/press-on-toenails)$2.4M/yr+79.4%**Launch it**- 75 [**skulta deep peptide eye mask**](https://flapen.com/research/us/beauty-personal-care/skulta-deep-peptide-eye-mask)$58K/yr>1,000%**Worth a look**- 75 [**mineral sunscreen spray**](https://flapen.com/research/us/beauty-personal-care/mineral-sunscreen-spray)$3.8M/yr+183.8%**Launch it**- 76 [**collagen oil**](https://flapen.com/research/us/beauty-personal-care/collagen-oil)$344K/yr+116.2%**Worth a look**[**All Beauty & Personal Care niches **](https://flapen.com/research/us/beauty-personal-care)