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53

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

Great1.1%

return rate — above 5% kills the launch gate

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Avg price

Great$69.62

avg listing price — sweet spot $15–$100

Conversion

Great8.1%

search→purchase rate — share of searches ending in a sale

Price range

Good$12.59–$159.38

cheapest to priciest tracked listing — scored on the share inside $15–$100

Review moat

Okay2,178.2

avg 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.
7K5KSpike '26Jan '26Feb '26Mar '26Apr '26May '26Jun '26

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
All 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 moat Market 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.

What buyers say about le jardin switzerland hair serum

What buyers praise and complain about, mined from review topics.

What buyers love

Hair Growth26%

“Creates a healthy scalp for hair growth”

Quality-Overall16%

“the reviews were right”

Value For Money7%

“Worth the price”

Smell5%

“Lightweight product with no overpowering odors”

Ease Of Use5%

“Its easy to use”

Absorbency3%

“Using it overnight works best for me it absorbs over night”

Moist/Dry2%

“This stuff is super drying to my scalp”

Weight Light2%

“It is not too heavy”

Ease Of Application2%

“Application is straightforward — I use it at night directly on my scalp”

Oily/Greasy2%

“Its lightweight, non-greasy, and works well as part of a routine”

What buyers complain about

Value For Money16%

“Too expensive”

Functionality-Overall12%

“Doesn't work”

Hair Related10%

“However it made my hair fall out like crazy”

Oily/Greasy9%

“A bit oily”

Allergies7%

“it so so so itchy it bothered me all day”

Smell4%

“it doesn't smell”

Size-Overall4%

“Too small amount”

Thickness3%

“But you can see my hair has gotten thicker”

Damage/Burn Hair2%

“Burned my scalp”

Side Effects2%

“This product Caused extreme scalp irritation and hair loss”

Top return reasons

Functionality-Overall17%
Oily/Greasy13%
Value For Money8%
Product Condition8%
Advertised Vs Actual Product8%
Smell7%
Size-Overall7%
Damage/Burn Hair6%
Defective Material/Parts4%
Suitability Short Hair3%

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.