---
title: "Sins N Lashes Serum — $12.3M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/sins-n-lashes-serum"
last_updated: "2026-08-10T17:41:46.532Z"
locale: en
meta:
description: "Niche score 54/100 · $12.3M/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 54/100 · $12.3M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Sins N Lashes Serum — $12.3M/yr Amazon US Niche (2026) - Flapen"
---
# **sins n lashes serum**
**Worth a look**
Shows a $12.3M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 100Growth 18Conversion 83Competition 6Returns 92Price range 95Avg price 95Brand share 0Review moat 21Quality gap 78
**Market size**
**Incredible****$12.3M**
$12.3M/yr · 3.0M searches
**Avg price**
**Incredible****$44.85**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$21.54–$77.29**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.2%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.1%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****11,709**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-14.2%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****93%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, sins n lashes serum is a $12.3M/yr Amazon United States market (3.0M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Oct–Dec. Verdict: Worth a look — 54/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sins n lashes serum market data**
- **Units sold / yr**
- **200K–250K**
- avg 25,000–30,000/product
- **Revenue / yr**
- **$9.0M–$11.2M**
- units × avg price
- **Conversion rate**
- **9.1%**
- **Avg BSR**
- **#27**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **86%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **42 months**
- **Avg seller age**
- **144 days**
## **Competition & brand share**
The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**2 **▼falling
**Sellers**
**6**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**93%**
Top 20: 100%
**Open market**
**0%**
- BABE ORIGINAL94% - TEREZ & HONOR6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -14.2% search growth over the last 90 days.
125K75KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Oct, Dec · busiest ÷ quietest = 2.2×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/sins-n-lashes-serum/trend)
## **Top sins n lashes serum search terms**
- **babe lash eyelash serum**1.4M/yr-13.1%10.3% conv. - **babe lash**731K/yr-10.3%7.9% conv. - **babe lash serum**292K/yr-22.1%6.2% conv. - **terez and honor eyelash growth serum**149K/yr-29.1%11.8% conv. - **babe original lash serum**101K/yr-9.4%8.7% conv. - **babelash**53K/yr+7.4%7.2% conv. - **divalash serum pestaas**42K/yr+20.3%0.0% conv. - **lash by maya**43K/yr-0.3%0.0% conv. - **lash by maya serum**56K/yr-29.2%0.0% conv. - **divalash**30K/yr+27.2%0.0% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/sins-n-lashes-serum/search-terms)
## **Top sins n lashes 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%$1.8M30%$3.7M45%$5.5M60%$7.4M1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Babe Original Lash Serum - Fuller & Longer Looking Eyelashes Lash Enhancing Serum for Natural Lashes and Lash Extensions 1mL Starter Supply**BABE ORIGINAL**$27.49**4.2★22,919 rev](https://www.amazon.com/dp/B07BKV4B6Q) [2**Babe Original Babe Lash Serum - Fuller & Longer Looking Eyelashes Clear Essential Serum for Natural Lashes and Lash Extensions 2mL 3-month Supply**BABE ORIGINAL**$44.46**4.2★22,919 rev](https://www.amazon.com/dp/B01C2EFBZU) [3**BABE ORIGINAL Renewing Lash Serum Prostaglandin-Free Peptide-Infused Gentle Lash Serum for Fuller Longer-Looking Lashes Lash Enhancing Treatment with Nourishing Botanicals Vegan & Cruelty-Free**BABE ORIGINAL**$27.37**4.1★754 rev](https://www.amazon.com/dp/B0DW6F1L45) [4**Advanced Eyelash Serum for Thicker Longer Eyelashes and Eyebrows - Grow Luscious Lashes with Brow Enhancer (3mL)**TEREZ & HONOR**$21.54**4.1★10,908 rev](https://www.amazon.com/dp/B07NDN3R9P) [5**Babe Original Eyelash Serum for Natural Fuller & Longer Looking Eyelashes - Lash Serum Hydrates Lashes for Lash Brow & Lash Extensions - 4mL**BABE ORIGINAL**$77.29**4.2★22,919 rev](https://www.amazon.com/dp/B01C2EFAU6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Babe Original Lash Serum AM/PM Kit - 2mL Babe Lash Essential Serum & 3mL Enhancing Conditioner (Gold Box)**BABE ORIGINAL**$73.38**328 rev1y ago](https://www.amazon.com/dp/B0F9GZ5T3W) [**BABE ORIGINAL Renewing Lash Serum Prostaglandin-Free Peptide-Infused Gentle Lash Serum for Fuller Longer-Looking Lashes Lash Enhancing Treatment with Nourishing Botanicals Vegan & Cruelty-Free**BABE ORIGINAL**$27.37**754 rev1y ago](https://www.amazon.com/dp/B0DW6F1L45) [**Babe Original Triple Threat Mini Set Includes Babe Lash Essential Serum & Enhancing Conditioner + Babe Brow Amplifying Serum 1 mL 3 Pack**BABE ORIGINAL**$42.43**1,216 rev3y ago](https://www.amazon.com/dp/B0B94XLPBM) [**Advanced Eyelash Serum for Thicker Longer Eyelashes and Eyebrows - Grow Luscious Lashes with Brow Enhancer (3mL)**TEREZ & HONOR**$21.54**10,908 rev7y ago](https://www.amazon.com/dp/B07NDN3R9P) [**Babe Original Lash Serum - Fuller & Longer Looking Eyelashes Lash Enhancing Serum for Natural Lashes and Lash Extensions 1mL Starter Supply**BABE ORIGINAL**$27.49**22,919 rev7y ago](https://www.amazon.com/dp/B07BKV4B6Q)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Babe Original Lash Serum AM/PM Kit - 2mL Babe Lash Essential Serum & 3mL Enhancing Conditioner (Gold Box)**BABE ORIGINAL**$73.38**4.6★**▲ 93%**](https://www.amazon.com/dp/B0F9GZ5T3W) [**Babe Original Lash Serum - Fuller & Longer Looking Eyelashes Lash Enhancing Serum for Natural Lashes and Lash Extensions 1mL Starter Supply**BABE ORIGINAL**$27.49**4.2★**▲ 44%**](https://www.amazon.com/dp/B07BKV4B6Q) [**Babe Original Eyelash Serum for Natural Fuller & Longer Looking Eyelashes - Lash Serum Hydrates Lashes for Lash Brow & Lash Extensions - 4mL**BABE ORIGINAL**$77.29**4.2★**— 9%**](https://www.amazon.com/dp/B01C2EFAU6) [**BABE ORIGINAL Renewing Lash Serum Prostaglandin-Free Peptide-Infused Gentle Lash Serum for Fuller Longer-Looking Lashes Lash Enhancing Treatment with Nourishing Botanicals Vegan & Cruelty-Free**BABE ORIGINAL**$27.37**4.1★**▼ 16%**](https://www.amazon.com/dp/B0DW6F1L45) [**Advanced Eyelash Serum for Thicker Longer Eyelashes and Eyebrows - Grow Luscious Lashes with Brow Enhancer (3mL)**TEREZ & HONOR**$21.54**4.1★**▼ 21%**](https://www.amazon.com/dp/B07NDN3R9P)
**~~View all trending →~~**
## **What buyers say about sins n lashes serum**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**13%
*“Worth it”*
**Eyelash Quality**12%
*“This eyelash serum is so affordable”*
**Allergies**10%
*“No irritation”*
**Quality-Overall**10%
*“Other reviews are accurate”*
**Ease Of Application**7%
*“I was very consistent with it applying it every night”*
**Hair Growth**7%
*“This product has made my eyes lashes grow in fuller”*
**Ease Of Use**5%
*“Easy to use”*
**Symptom Reduction**5%
*“Amazing results”*
**Advertised Vs Actual Product**4%
*“As advertised”*
**Thickness**3%
*“Thick”*
### **What buyers complain about **
**Allergies**36%
*“Allergic Reaction”*
**Functionality-Overall**11%
*“Ineffective”*
**Value For Money**8%
*“Waste of money”*
**Symptom Reduction**6%
*“After over 2 months I did not see any improvement at all”*
**Side Effects**6%
*“theres side effects”*
**Eyelash Quality**5%
*“The second time my eyelashes were actually falling out like crazy”*
**Moist/Dry**4%
*“Completely dry”*
**Color**3%
*“caused black under eyes”*
**Thickness**3%
*“Does not thicken them”*
**Durability**2%
*“Didnt work after months of use”*
### **Top return reasons **
**Functionality-Overall**17%
**Value For Money**15%
**Advertised Vs Actual Product**12%
**Moist/Dry**9%
**Size-Overall**8%
**Defective Material/Parts**6%
**Damage/Burn Hair**6%
**Skin Health**5%
**Product Condition**4%
**Color**3%
## **Common questions**
- **Is sins n lashes serum profitable to sell on Amazon United States?**
- The niche generates $12.3M/yr across 7 tracked products. 90-day search growth is -14.2%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the sins n lashes serum niche?**
- 2 brands and 6 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in sins n lashes serum?**
- Top complaints mined from reviews: Allergies, Functionality-Overall, Value For Money. The return rate is 1.2%.
- **When does demand for sins n lashes serum peak?**
- Demand peaks in Jan–Oct–Dec; the busiest month runs 2.2× the quietest.
- **What does it cost to enter the sins n lashes serum niche?**
- Listings span $21.54–$77.29; the average listing price is $44.85 (sweet spot $15–$100). The average incumbent carries 11,709 reviews — the moat a new listing must climb.
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