---
title: "Le Jardin Switzerland Hair Serum — $2.8M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/le-jardin-switzerland-hair-serum"
last_updated: "2026-08-11T15:28:25.644Z"
locale: en
meta:
description: "Niche score 53/100 · $2.8M/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 53/100 · $2.8M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Le Jardin Switzerland Hair Serum — $2.8M/yr Amazon US Niche (2026) - Flapen"
---
# **le jardin switzerland hair serum**
**Worth a look**
Shows a $2.8M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 96Growth 8Conversion 79Competition 12Returns 93Price range 58Avg price 86Brand share 0Review moat 43Quality gap 90
**Market size**
**Incredible****$2.8M**
$2.8M/yr · 488K searches
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Great****$69.62**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.1%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$12.59–$159.38**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Okay****2,178.2**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****86%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-33.7%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, le jardin switzerland hair serum is a $2.8M/yr Amazon United States market (488K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **le jardin switzerland hair serum market data**
- **Units sold / yr**
- **30K–40K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **$2.1M–$2.8M**
- units × avg price
- **Conversion rate**
- **8.1%**
- **Avg BSR**
- **#51**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **3.4%**
- **Avg brand age**
- **42 months**
- **Avg seller age**
- **136 days**
## **Competition & brand share**
The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**6**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**86%**
Top 20: 100%
**Open market**
**0%**
- VEGAMOUR53% - Nutrafol39% - oneskin4% - The Ordinary4%
## **Demand**
Weekly Amazon search volume, last 25 weeks — -33.7% search growth over the last 90 days.
7K5KSpike '26Jan '26Feb '26Mar '26Apr '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/le-jardin-switzerland-hair-serum/trend)
## **Top le jardin switzerland hair serum search terms**
- **vegamour gro hair serum**221K/yr-14.4%6.9% conv. - **nutrafol hair serum**63K/yr-29.1%9.5% conv. - **nutrafol serum**37K/yr-25.4%10.8% conv. - **nutrafol women hair growth serum**15K/yr-22.0%7.6% conv. - **one skin hair serum**20K/yr-25.4%5.8% conv. - **nutrafol hair serum for women**15K/yr-29.0%8.2% conv. - **vegamour hair serum**21K/yr-42.3%5.7% conv. - **le jardin switzerland hair serum**32K/yr-84.3%0.5% conv. - **gro hair serum**13K/yr-5.4%4.7% conv. - **nutrafol serum for women**13K/yr-24.9%9.8% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/le-jardin-switzerland-hair-serum/search-terms)
## **Top le jardin switzerland hair 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%10%$276K20%$552K30%$828K40%$1.1M101001K10K 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**VEGAMOUR GRO Hair Serum for Thinning Hair Thicker Fuller Looking Hair Non Oily Tonic for Healthier Scalp 30 Day Supply 1.0 fl oz 1 Pack**VEGAMOUR**$57.76**4.0★5,422 rev](https://www.amazon.com/dp/B08KYM3Y6T) [2**Nutrafol Womens Hair Serum Supports Visibly Thicker and Stronger Hair Vegan Lightweight and Fast-Absorbing - 1 Fl Oz 1 Bottle**Nutrafol**$47.26**4.1★3,392 rev](https://www.amazon.com/dp/B0D3QR9F9K) [3**VEGAMOUR GRO+ Advanced Hair Serum for Improving Hair Density Tonic Reduces Shedding and Promotes a Healthy Scalp 30 Day Supply 1 fl oz New Packaging**VEGAMOUR**$73.32**4.3★386 rev](https://www.amazon.com/dp/B0DN6JYQ1Y) [4**Nutrafol Women Hair Serum for Thinning Hair Clinically Tested to Support Visibly Thicker Stronger-Feeling Hair Vegan Lightweight and Fast-Absorbing 1.7 fl oz 1 Bottle**Nutrafol**$65.89**4.1★3,392 rev](https://www.amazon.com/dp/B094SM4H3L) [5**oneskin OS-01 HAIR Peptide Scalp Serum | Reduce Shedding & Support Hair Density 50 mL /1.7 Fl Oz**oneskin**$68.14**3.7★17 rev](https://www.amazon.com/dp/B0GJ6Q8YNH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**VEGAMOUR GRO+ Advanced Hair Serum for Improving Hair Density Tonic Reduces Shedding and Promotes a Healthy Scalp 30 Day Supply 1 fl oz New Packaging**VEGAMOUR**$73.32**386 rev3mo ago](https://www.amazon.com/dp/B0DN6JYQ1Y) [**VEGAMOUR GRO+ Advanced Hair Serum for Improving Hair Density Tonic Reduces Shedding and Promotes a Healthy Scalp 90 Day Supply 3.4 fl oz**VEGAMOUR**$159.38**386 rev4mo ago](https://www.amazon.com/dp/B0GRQ1T6XC) [**oneskin OS-01 HAIR Peptide Scalp Serum | Reduce Shedding & Support Hair Density 50 mL /1.7 Fl Oz**oneskin**$68.14**17 rev5mo ago](https://www.amazon.com/dp/B0GJ6Q8YNH) [**Nutrafol Mens Hair Serum Clinically Tested to Support Visibly Thicker Hair and Scalp Coverage Lightweight and Non-Greasy for Daily Use - 30mL 1 Bottle**Nutrafol**$47.43**261 rev2y ago](https://www.amazon.com/dp/B0D3SPHTHS) [**Nutrafol Womens Hair Serum Supports Visibly Thicker and Stronger Hair Vegan Lightweight and Fast-Absorbing - 1 Fl Oz 1 Bottle**Nutrafol**$47.26**3,392 rev2y ago](https://www.amazon.com/dp/B0D3QR9F9K)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**VEGAMOUR GRO+ Advanced Hair Serum for Improving Hair Density Tonic Reduces Shedding and Promotes a Healthy Scalp 90 Day Supply 3.4 fl oz**VEGAMOUR**$159.38**4.3★**▲ 342%**](https://www.amazon.com/dp/B0GRQ1T6XC) [**VEGAMOUR GRO+ Advanced Hair Serum for Improving Hair Density Tonic Reduces Shedding and Promotes a Healthy Scalp 30 Day Supply 1 fl oz New Packaging**VEGAMOUR**$73.32**4.3★**▲ 340%**](https://www.amazon.com/dp/B0DN6JYQ1Y) [**oneskin OS-01 HAIR Peptide Scalp Serum | Reduce Shedding & Support Hair Density 50 mL /1.7 Fl Oz**oneskin**$68.14**3.7★**▲ 154%**](https://www.amazon.com/dp/B0GJ6Q8YNH) [**VEGAMOUR GRO Revitalizing Shampoo Support Thicker Fuller Looking Hair Shampoo Formulated Without Sulfates for Thinning Hair with Vegan Keratin Natural Citrus Scent (1.6 fl. oz.)**VEGAMOUR**$12.59**4.1★**▲ 79%**](https://www.amazon.com/dp/B0CBQS6RJL) [**Nutrafol Womens Hair Serum Supports Visibly Thicker and Stronger Hair Vegan Lightweight and Fast-Absorbing - 1 Fl Oz 1 Bottle**Nutrafol**$47.26**4.1★**— 5%**](https://www.amazon.com/dp/B0D3QR9F9K)
**~~View all trending →~~**
## **What buyers say about le jardin switzerland hair serum**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Hair Growth**26%
*“Creates a healthy scalp for hair growth”*
**Quality-Overall**16%
*“the reviews were right”*
**Value For Money**7%
*“Worth the price”*
**Smell**5%
*“Lightweight product with no overpowering odors”*
**Ease Of Use**5%
*“Its easy to use”*
**Absorbency**3%
*“Using it overnight works best for me it absorbs over night”*
**Moist/Dry**2%
*“This stuff is super drying to my scalp”*
**Weight Light**2%
*“It is not too heavy”*
**Ease Of Application**2%
*“Application is straightforward — I use it at night directly on my scalp”*
**Oily/Greasy**2%
*“Its lightweight, non-greasy, and works well as part of a routine”*
### **What buyers complain about **
**Value For Money**16%
*“Too expensive”*
**Functionality-Overall**12%
*“Doesn't work”*
**Hair Related**10%
*“However it made my hair fall out like crazy”*
**Oily/Greasy**9%
*“A bit oily”*
**Allergies**7%
*“it so so so itchy it bothered me all day”*
**Smell**4%
*“it doesn't smell”*
**Size-Overall**4%
*“Too small amount”*
**Thickness**3%
*“But you can see my hair has gotten thicker”*
**Damage/Burn Hair**2%
*“Burned my scalp”*
**Side Effects**2%
*“This product Caused extreme scalp irritation and hair loss”*
### **Top return reasons **
**Functionality-Overall**17%
**Oily/Greasy**13%
**Value For Money**8%
**Product Condition**8%
**Advertised Vs Actual Product**8%
**Smell**7%
**Size-Overall**7%
**Damage/Burn Hair**6%
**Defective Material/Parts**4%
**Suitability Short Hair**3%
## **Common questions**
- **Is le jardin switzerland hair serum profitable to sell on Amazon United States?**
- The niche generates $2.8M/yr across 10 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -33.7%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the le jardin switzerland hair serum niche?**
- 4 brands and 6 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in le jardin switzerland hair serum?**
- Top complaints mined from reviews: Value For Money, Functionality-Overall, Hair Related. The return rate is 1.1%.
- **What does it cost to enter the le jardin switzerland hair serum niche?**
- Listings span $12.59–$159.38; the average listing price is $69.62 (sweet spot $15–$100). The average incumbent carries 2,178 reviews — the moat a new listing must climb.
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