le jardin switzerland hair serum
Worth a lookShows a $2.8M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size
Incredible$2.8M$2.8M/yr · 488K searches
Returns
Great1.1%return rate — above 5% kills the launch gate
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Avg price
Great$69.62avg listing price — sweet spot $15–$100
Conversion
Great8.1%search→purchase rate — share of searches ending in a sale
Price range
Good$12.59–$159.38cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay2,178.2avg incumbent reviews — the moat a new listing must climb
Competition
Bad86%top-5 click share — a locked-up shelf
Growth
Bad-33.7%90-day search growth — must beat 0% to launch
Brand share
Bad100%top-5 brand share — brand-locked demand
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
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.Top le jardin switzerland hair serum search terms
- vegamour gro hair serum221K/yr
- nutrafol hair serum63K/yr
- nutrafol serum37K/yr
- nutrafol women hair growth serum15K/yr
- one skin hair serum20K/yr
- nutrafol hair serum for women15K/yr
- vegamour hair serum21K/yr
- le jardin switzerland hair serum32K/yr
- gro hair serum13K/yr
- nutrafol serum for women13K/yr
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.
All 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$57.764.0★5,422 rev

Nutrafol Womens Hair Serum Supports Visibly Thicker and Stronger Hair Vegan Lightweight and Fast-Absorbing - 1 Fl Oz 1 Bottle
Nutrafol$47.264.1★3,392 rev

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$73.324.3★386 rev

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$65.894.1★3,392 rev

oneskin OS-01 HAIR Peptide Scalp Serum | Reduce Shedding & Support Hair Density 50 mL /1.7 Fl Oz
oneskin$68.143.7★17 rev
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$73.32386 rev

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$159.38386 rev

oneskin OS-01 HAIR Peptide Scalp Serum | Reduce Shedding & Support Hair Density 50 mL /1.7 Fl Oz
oneskin$68.1417 rev

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$47.43261 rev

Nutrafol Womens Hair Serum Supports Visibly Thicker and Stronger Hair Vegan Lightweight and Fast-Absorbing - 1 Fl Oz 1 Bottle
Nutrafol$47.263,392 rev
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$159.384.3★

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$73.324.3★

oneskin OS-01 HAIR Peptide Scalp Serum | Reduce Shedding & Support Hair Density 50 mL /1.7 Fl Oz
oneskin$68.143.7★

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$12.594.1★

Nutrafol Womens Hair Serum Supports Visibly Thicker and Stronger Hair Vegan Lightweight and Fast-Absorbing - 1 Fl Oz 1 Bottle
Nutrafol$47.264.1★
What buyers say about le jardin switzerland hair serum
What buyers praise and complain about, mined from review topics.What buyers love
“Creates a healthy scalp for hair growth”
“the reviews were right”
“Worth the price”
“Lightweight product with no overpowering odors”
“Its easy to use”
“Using it overnight works best for me it absorbs over night”
“This stuff is super drying to my scalp”
“It is not too heavy”
“Application is straightforward — I use it at night directly on my scalp”
“Its lightweight, non-greasy, and works well as part of a routine”
What buyers complain about
“Too expensive”
“Doesn't work”
“However it made my hair fall out like crazy”
“A bit oily”
“it so so so itchy it bothered me all day”
“it doesn't smell”
“Too small amount”
“But you can see my hair has gotten thicker”
“Burned my scalp”
“This product Caused extreme scalp irritation and hair loss”
Top return reasons
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.