---
title: "Epais Eyelash Serum — $583K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/epais-eyelash-serum"
last_updated: "2026-08-11T03:46:44.347Z"
locale: en
meta:
description: "Niche score 61/100 · $583K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 61/100 · $583K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Epais Eyelash Serum — $583K/yr Amazon US Niche (2026) - Flapen"
---
# **epais eyelash serum**
**Worth a look**
Shows demand growing +121.0% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 63Growth 95Conversion 81Competition 0Returns 89Price range 79Avg price 91Brand share 0Review moat 67Quality gap 80
**Growth**
**Incredible****+121.0%**
90-day search growth — must beat 0% to launch
**Avg price**
**Great****$21.21**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****8.5%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Price range**
**Great****$8.80–$40.04**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****813**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Good****$583K**
$583K/yr · 323K searches
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United States niche tracking, epais eyelash serum is a $583K/yr Amazon United States market (323K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Worth a look — 61/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **epais eyelash serum market data**
- **Units sold / yr**
- **20K–25K**
- avg 2,500–3,000/product
- **Revenue / yr**
- **$424K–$530K**
- units × avg price
- **Conversion rate**
- **8.5%**
- **Avg BSR**
- **#47**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **41 months**
- **Avg seller age**
- **147 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **—flat
**Sellers**
**9**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- EPAIS56% - COSNORI31% - ETUDE7% - NUNA6% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 97 weeks — +121.0% search growth over the last 90 days.
25K15KHoliday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jun, Jul, Aug · busiest ÷ quietest = 4.7×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/epais-eyelash-serum/trend)
## **Top epais eyelash serum search terms**
- **epais eyelash serum**79K/yr+441.1%8.7% conv. - **cosnori eyelash serum**87K/yr+19.6%9.1% conv. - **korean lash serum**33K/yr+328.4%4.3% conv. - **korean eyelash serum**18K/yr+197.3%4.4% conv. - **epais lash serum**21K/yr+171.3%4.8% conv. - **cosnori lash serum**11K/yr+101.4%7.4% conv. - **etude lash serum**17K/yr-7.9%4.6% conv. - **epias lash serum**6K/yr+401.6%8.7% conv. - **cosori lash serum**7K/yr+55.5%8.9% conv. - **etude my lash serum**6K/yr+94.2%6.2% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/epais-eyelash-serum/search-terms)
## **Top epais eyelash serum 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%$87K30%$175K45%$262K60%$350K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 4 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**EPAIS Eyelash Growth Serum & Lash Conditioner 7 Peptide & Biotin Formula for Longer & Fuller Looking Lashes and Brows Prostaglandin-Free Jumbo 15ml (3+ Month Supply) Korean Lash Serum**EPAIS**$18.69**4.2★892 rev](https://www.amazon.com/dp/B0C8SQN7S6) [2**COSNORI Long Active Eyelash Serum - Korean Eyelash Boost Serum - Eyebrow Growth Enhancer for Longer and Thicker - Vegan Prostaglandin Free & Non Irritating - Peptides Hyaluronic Acid 0.3 fl.oz.**COSNORI**$17.32**4.1★791 rev](https://www.amazon.com/dp/B08NWSB791) [3**ETUDE My Lash Serum without prostaglandin Eyelash Strengthening Formula with Biotin Ginger extract for Lash health and growth Non-sticky Mascara Serum Vegan Certified (0.3 Fl Oz)**ETUDE**$8.80**4.3★440 rev](https://www.amazon.com/dp/B0D4YPT6QW) [4**NUNA Eyelash Growth Support Serum 6ml Eye Lash and Eyebrow Enhancing Serum for Women & Men with Biotin - Korean Multi Peptide & Natural Extracts Promotes Fuller and Longer Lashes - 6 Month Supply**NUNA**$40.04**4.3★1,129 rev](https://www.amazon.com/dp/B0DZDBBNFT)
### **Newest**
by launch date
[**NUNA Eyelash Growth Support Serum 6ml Eye Lash and Eyebrow Enhancing Serum for Women & Men with Biotin - Korean Multi Peptide & Natural Extracts Promotes Fuller and Longer Lashes - 6 Month Supply**NUNA**$40.04**1,129 rev1y ago](https://www.amazon.com/dp/B0DZDBBNFT) [**ETUDE My Lash Serum without prostaglandin Eyelash Strengthening Formula with Biotin Ginger extract for Lash health and growth Non-sticky Mascara Serum Vegan Certified (0.3 Fl Oz)**ETUDE**$8.80**440 rev2y ago](https://www.amazon.com/dp/B0D4YPT6QW) [**EPAIS Eyelash Growth Serum & Lash Conditioner 7 Peptide & Biotin Formula for Longer & Fuller Looking Lashes and Brows Prostaglandin-Free Jumbo 15ml (3+ Month Supply) Korean Lash Serum**EPAIS**$18.69**892 rev2y ago](https://www.amazon.com/dp/B0C8SQN7S6) [**COSNORI Long Active Eyelash Serum - Korean Eyelash Boost Serum - Eyebrow Growth Enhancer for Longer and Thicker - Vegan Prostaglandin Free & Non Irritating - Peptides Hyaluronic Acid 0.3 fl.oz.**COSNORI**$17.32**791 rev5y ago](https://www.amazon.com/dp/B08NWSB791)
### **Trending**
90-day click momentum
[**NUNA Eyelash Growth Support Serum 6ml Eye Lash and Eyebrow Enhancing Serum for Women & Men with Biotin - Korean Multi Peptide & Natural Extracts Promotes Fuller and Longer Lashes - 6 Month Supply**NUNA**$40.04**4.3★**▲ 35%**](https://www.amazon.com/dp/B0DZDBBNFT) [**EPAIS Eyelash Growth Serum & Lash Conditioner 7 Peptide & Biotin Formula for Longer & Fuller Looking Lashes and Brows Prostaglandin-Free Jumbo 15ml (3+ Month Supply) Korean Lash Serum**EPAIS**$18.69**4.2★**▲ 26%**](https://www.amazon.com/dp/B0C8SQN7S6) [**ETUDE My Lash Serum without prostaglandin Eyelash Strengthening Formula with Biotin Ginger extract for Lash health and growth Non-sticky Mascara Serum Vegan Certified (0.3 Fl Oz)**ETUDE**$8.80**4.3★**▼ 21%**](https://www.amazon.com/dp/B0D4YPT6QW) [**COSNORI Long Active Eyelash Serum - Korean Eyelash Boost Serum - Eyebrow Growth Enhancer for Longer and Thicker - Vegan Prostaglandin Free & Non Irritating - Peptides Hyaluronic Acid 0.3 fl.oz.**COSNORI**$17.32**4.1★**▼ 27%**](https://www.amazon.com/dp/B08NWSB791)
## **What buyers say about epais eyelash serum**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Eyelash Quality**43%
*“THE BEST LASH SERUM”*
**Ease Of Application**12%
*“Easy application”*
**Quality-Overall**7%
*“has a very high-end appearance”*
**Soft Feel**5%
*“This feels gentle”*
**Allergies**4%
*“No irritation”*
**Weight Light**4%
*“I like how lightweight”*
**Ease Of Use**3%
*“Easy to use”*
**Value For Money**2%
*“And so affordable”*
**Hair Growth**1%
*“After just a few weeks of use, I noticed my lashes became longer, fuller and healthier”*
**Ingredients-Overall**1%
*“Great option if you want visible growth without harsh ingredients”*
### **What buyers complain about **
**Eyelash Quality**19%
*“It feels weird on my eyelashes”*
**Functionality-Overall**16%
*“Didn't work”*
**Allergies**14%
*“The irritation started a few days ago and is uncomfortable”*
**Symptom Reduction**12%
*“Saw no improvement”*
**Value For Money**7%
*“Not worth the money”*
**Durability**2%
*“doesn't work and wand fell off after several uses”*
**Quality-Overall**2%
*“without real performance behind them”*
**Sensitivity-Overall**1%
*“my eyes would burn”*
**Advertised Vs Actual Product**1%
*“it just feels like empty claims”*
**Side Effects**1%
*“No really effect”*
### **Top return reasons **
**Functionality-Overall**29%
**Advertised Vs Actual Product**11%
**Value For Money**9%
**Product Condition**7%
**Moist/Dry**6%
**Leak-Proof**5%
**Defective Material/Parts**4%
**Damage/Burn Hair**3%
**Ease Of Application**3%
**Eyelash Quality**2%
## **Common questions**
- **Is epais eyelash serum profitable to sell on Amazon United States?**
- The niche generates $583K/yr across 4 tracked products. 90-day search growth is +121.0%. Flapen's verdict: Worth a look (61/100).
- **How competitive is the epais eyelash serum niche?**
- 4 brands and 9 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in epais eyelash serum?**
- Top complaints mined from reviews: Eyelash Quality, Functionality-Overall, Allergies. The return rate is 1.3%.
- **When does demand for epais eyelash serum peak?**
- Demand peaks in Jun–Jul–Aug; the busiest month runs 4.7× the quietest.
- **What does it cost to enter the epais eyelash serum niche?**
- Listings span $8.80–$40.04; the average listing price is $21.21 (sweet spot $15–$100). The average incumbent carries 813 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)