---
title: "Brown Liquid Eyeliner — £133K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/beauty/brown-liquid-eyeliner"
last_updated: "2026-08-09T12:56:39.677Z"
locale: en
meta:
description: "Niche score 38/100 · £133K/yr market · 148K searches/yr · £8.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 38/100 · £133K/yr market · 148K searches/yr · £8.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Brown Liquid Eyeliner — £133K/yr Amazon UK Niche (2026) - Flapen"
---
# **brown liquid eyeliner**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 30Growth 24Conversion 92Competition 19Returns 100Price range 0Avg price 22Brand share 0Review moat 5Quality gap 67
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.1%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£133K**
£133K/yr · 148K searches
**Growth**
**Bad****-2.0%**
90-day search growth — must beat 0% to launch
**Avg price**
**Bad****£8.04**
avg listing price — sweet spot $15–$100
**Competition**
**Bad****77%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****41,049.85**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Price range**
**Bad****£5.16–£14.10**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, brown liquid eyeliner is a £133K/yr Amazon United Kingdom market (148K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Skip it — 38/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **brown liquid eyeliner market data**
- **Units sold / yr**
- **13K–15K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£101K–£121K**
- units × avg price
- **Conversion rate**
- **11.1%**
- **Avg BSR**
- **#69**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **62%**
- **Out of stock**
- **2.4%**
- **Avg brand age**
- **55 months**
- **Avg seller age**
- **147 days**
## **Competition & brand share**
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**2 **▼falling
**Sellers**
**51**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**77%**
Top 20: 100%
**Open market**
**0%**
- NYX PROFESSIONAL MAKEUP87% - Stila13% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -2.0% search growth over the last 90 days.
7K5KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Oct, Nov, Dec · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/uk/beauty/brown-liquid-eyeliner/trend)
## **Top brown liquid eyeliner search terms**
- **nyx eyeliner**71K/yr-4.8%10.8% conv. - **stila eyeliner**16K/yr+6.9%6.4% conv. - **stila**17K/yr-6.0%0.4% conv. - **nyx epic wear eyeliner**8K/yr+36.0%7.1% conv. - **stila stay all day waterproof liquid eyeliner**6K/yr+5.0%6.8% conv. - **nyx liquid eyeliner**5K/yr+0.4%12.3% conv. - **kvd tattoo eyeliner**5K/yr-2.0%1.8% conv. - **kat von d tattoo liner**3K/yr+13.1%2.4% conv. - **stila eyeshadow**5K/yr+5.4%0.0% conv. - **nyx liner**3K/yr-10.0%8.0% conv. [**All search terms **](https://flapen.com/research/uk/beauty/brown-liquid-eyeliner/search-terms)
## **Top brown liquid 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%10%£13K20%£27K30%£40K40%£53K1001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**NYX Professional Makeup Eye Liner Epic Ink Liner Waterproof Liquid Eyeliner Pen 1 Stroke Intense Pigment Flexible Brush for Thin or Thick Lines Korean Makeup Shade Black**NYX PROFESSIONAL MAKEUP**£5.77**4.4★93,874 rev](https://www.amazon.co.uk/dp/B074Y8LM6T) [2**NYX Professional Makeup Epic Eyeliner Inky Stix Cream Gel Eyeliner lasts up to 24 hours Waterproof Precise Slanted Tip Long Lasting & Easy Application Shade: Black Screen**NYX PROFESSIONAL MAKEUP**£6.17**4.2★994 rev](https://www.amazon.co.uk/dp/B0FV54WM6S) [3**Stila All Day Waterproof Liquid Eye Liner Easy To Use Eyeliner Pen Smudge and Transfer Proof Liner Stays On All Day and Night Goes On Smoothly Without Skipping Smudging or Pulling**Stila**£13.67**4.2★30,646 rev](https://www.amazon.co.uk/dp/B0031NNE56) [4**NYX Professional Makeup Black Liquid Eye Liner Epic Wear Semi Permanent Liquid Liner Flexible Brush Tip Applicator Intensely Pigmented Shades Waterproof Vegan Formula Shade: Black**NYX PROFESSIONAL MAKEUP**£7.21**4.5★7,808 rev](https://www.amazon.co.uk/dp/B0856FBCS4) [5**NYX - Mechanical Eye Pencil Black - 0.34 g**NYX PROFESSIONAL MAKEUP**£5.16**4.3★108,738 rev](https://www.amazon.co.uk/dp/B005G9E9AW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**NYX Professional Makeup Epic Eyeliner Inky Stix Cream Gel Eyeliner lasts up to 24 hours Waterproof Precise Slanted Tip Long Lasting & Easy Application Shade: Black Screen**NYX PROFESSIONAL MAKEUP**£6.17**994 rev1y ago](https://www.amazon.co.uk/dp/B0FV54WM6S) [**NYX Professional Makeup Epic Eyeliner Inky Stix Cream Gel Eyeliner lasts up to 24 hours Waterproof Precise Slanted Tip Long Lasting & Easy Application Shade: Kinetic Copper**NYX PROFESSIONAL MAKEUP**£6.50**994 rev1y ago](https://www.amazon.co.uk/dp/B0FV5BBW9Z) [**Stay All Day Smudge & Set Waterproof Gel Eye Liner 0.35g - Damsel Dark Brown**Stila**£14.10**231 rev1y ago](https://www.amazon.co.uk/dp/B0D4QSGM28) [**NYX Professional Makeup Epic Ink Liner Brush Tip Liquid Eye Liner Pen Up To 24 Hours of Wear 6 Intensely Pigmented Shades Waterproof Vegan Formula Shade: Dark Chocolate**NYX PROFESSIONAL MAKEUP**£7.97**93,874 rev2y ago](https://www.amazon.co.uk/dp/B0D19QGKQ4) [**NYX Professional Makeup Eye Liner Epic Ink Liner Waterproof Liquid Eyeliner Pen 1 Stroke Intense Pigment Flexible Brush for Thin or Thick Lines Korean Makeup Shade Milk Chocolate**NYX PROFESSIONAL MAKEUP**£6.37**93,874 rev2y ago](https://www.amazon.co.uk/dp/B0D1B8SWM2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**NYX Professional Makeup Epic Ink Liner Brush Tip Liquid Eye Liner Pen Up To 24 Hours of Wear 6 Intensely Pigmented Shades Waterproof Vegan Formula Shade: Dark Chocolate**NYX PROFESSIONAL MAKEUP**£7.97**4.4★**▲ 131%**](https://www.amazon.co.uk/dp/B0D19QGKQ4) [**NYX Professional Makeup Epic Eyeliner Inky Stix Cream Gel Eyeliner lasts up to 24 hours Waterproof Precise Slanted Tip Long Lasting & Easy Application Shade: Kinetic Copper**NYX PROFESSIONAL MAKEUP**£6.50**4.2★**▲ 56%**](https://www.amazon.co.uk/dp/B0FV5BBW9Z) [**NYX Professional Makeup Epic Eyeliner Inky Stix Cream Gel Eyeliner lasts up to 24 hours Waterproof Precise Slanted Tip Long Lasting & Easy Application Shade: Black Screen**NYX PROFESSIONAL MAKEUP**£6.17**4.2★**▲ 48%**](https://www.amazon.co.uk/dp/B0FV54WM6S) [**NYX Professional Makeup Epic Wear Semi-Permanent Liquid Liner with 72H Staying Power Longwearing Waterproof Eye Liner and Body Art Matte Finish Colour: Brown**NYX PROFESSIONAL MAKEUP**£6.98**4.4★**▲ 37%**](https://www.amazon.co.uk/dp/B0856FB3M3) [**Stay All Day Smudge & Set Waterproof Gel Eye Liner 0.35g - Damsel Dark Brown**Stila**£14.10**4.4★**— 8%**](https://www.amazon.co.uk/dp/B0D4QSGM28)
**~~View all trending →~~**
## **What buyers say about brown liquid eyeliner**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Eyeliner Quality**13%
*“long lasting eyeliner I've ever used”*
**Quality-Overall**10%
*“Seems to perform well”*
**Color**10%
*“Lovely colour”*
**Durability**8%
*“Lasts all day”*
**Value For Money**7%
*“Worth the money”*
**Ease Of Application**6%
*“Easy application”*
**Smudge Resistance**5%
*“doesnt smudge at all”*
**Soft Feel**5%
*“It was pretty good and soft”*
**Eyelash Quality**5%
*“Eye liner”*
**Ease Of Use**5%
*“Ease of use”*
### **What buyers complain about **
**Durability**16%
*“Not very impressed with it's durability”*
**Eyeliner Quality**11%
*“Never had an eyeliner run out so fast”*
**Moist/Dry**8%
*“Dry”*
**Smudge Resistance**5%
*“However, I went outside for 4 hours and when I came back I had smudges in the corner of my eyes”*
**Water Resistance**5%
*“Be warned—this isn't a splash of water”*
**Color**4%
*“has no pigment”*
**Value For Money**4%
*“not enough of it for the price”*
**Thickness**4%
*“Its thin and gets those sharp lines”*
**Allergies**4%
*“this time it's giving my left eye some kind of reaction”*
**Size-Overall**3%
*“the amount of product is tiny”*
### **Top return reasons **
**Water Resistance**35%
**Moist/Dry**18%
**Functionality-Overall**12%
**Quality-Overall**9%
**Color**6%
**Eyeliner Quality**6%
**Add-Ons/Attachments**6%
**Dilute/Watery**6%
**Durability**3%
## **Common questions**
- **Is brown liquid eyeliner profitable to sell on Amazon United Kingdom?**
- The niche generates £133K/yr across 13 tracked products. 90-day search growth is -2.0%. Flapen's verdict: Skip it (38/100).
- **How competitive is the brown liquid eyeliner niche?**
- 2 brands and 51 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in brown liquid eyeliner?**
- Top complaints mined from reviews: Durability, Eyeliner Quality, Moist/Dry. The return rate is 0.1%.
- **When does demand for brown liquid eyeliner peak?**
- Demand peaks in Oct–Nov–Dec; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the brown liquid eyeliner niche?**
- Listings span £5.16–£14.10; the average listing price is £8.04 (sweet spot $15–$100). The average incumbent carries 41,050 reviews — the moat a new listing must climb.
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