---
title: "Kerastase Serum — $2.4M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/kerastase-serum"
last_updated: "2026-08-07T17:42:23.657Z"
locale: en
meta:
description: "Niche score 50/100 · $2.4M/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 50/100 · $2.4M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Kerastase Serum — $2.4M/yr Amazon US Niche (2026) - Flapen"
---
# **kerastase serum**
**Worth a look**
Shows a $2.4M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 95Growth 23Conversion 63Competition 15Returns 95Price range 95Avg price 94Brand share 0Review moat 29Quality gap 35
**Market size**
**Incredible****$2.4M**
$2.4M/yr · 933K searches
**Returns**
**Incredible****0.9%**
return rate — above 5% kills the launch gate
**Price range**
**Incredible****$20.87–$76.69**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$46.88**
avg listing price — sweet spot $15–$100
**Conversion**
**Good****5.6%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****3,557.3**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-3.7%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****82%**
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, kerastase serum is a $2.4M/yr Amazon United States market (933K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kerastase serum market data**
- **Units sold / yr**
- **50K–60K**
- avg 5,000–6,000/product
- **Revenue / yr**
- **$2.3M–$2.8M**
- units × avg price
- **Conversion rate**
- **5.6%**
- **Avg BSR**
- **#47**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **60%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **55 months**
- **Avg seller age**
- **137 days**
## **Competition & brand share**
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▲rising
**Sellers**
**4**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**82%**
Top 20: 100%
**Open market**
**0%**
- KÉRASTASE92% - Amika5% - Wella Professionals2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -3.7% search growth over the last 90 days.
35K25KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/kerastase-serum/trend)
## **Top kerastase serum search terms**
- **kerastase night serum hair**323K/yr-2.3%7.4% conv. - **kerastase serum**158K/yr+19.0%3.6% conv. - **kerastase hair serum**88K/yr-22.2%4.1% conv. - **overnight hair serum**44K/yr-5.4%1.1% conv. - **kerastase hair growth serum**28K/yr+6.2%4.6% conv. - **kerastase night serum**50K/yr-21.3%6.5% conv. - **amika dream routine overnight**29K/yr-5.4%10.1% conv. - **serum kerastase para cabello**23K/yr-10.0%2.5% conv. - **kerastase serum for hair**22K/yr+6.2%2.5% conv. - **night hair serum**21K/yr-17.7%1.4% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/kerastase-serum/search-terms)
## **Top kerastase 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%$244K20%$487K30%$731K40%$975K101001K10K 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**Kerastase Nutritive 8H Magic Night Serum - Overnight Treatment for Dry Hair Enhances Shine Anti-Frizz With Plant-Based Proteins**KÉRASTASE**$58.50**4.6★9,312 rev](https://www.amazon.com/dp/B0BZZJWGPQ) [2**Kerastase Nutritive 8H Magic Night Serum - Overnight Treatment for Dry Hair Enhances Shine With Plant-Based Proteins 1.01 Fl Oz Travel Size**KÉRASTASE**$30.96**4.6★9,312 rev](https://www.amazon.com/dp/B0F2QZQWDN) [3**Kerastase Genesis Hair Serum - Daily Strengthening Treatment for Weak Hair Silicone-Free Anti-Breakage Nourishes and Reinforces Hair Serum Fortifiant 1 Fl Oz**KÉRASTASE**$32.89**4.5★2,345 rev](https://www.amazon.com/dp/B0G3D8F18H) [4**Kerastase Genesis Hair Serum - Prevents Hair Fall from Brushing Strengthens Weak Hair Enriched with Ginger & Caffeine 97% Less Breakage 3.04 Fl Oz**KÉRASTASE**$62.97**4.5★2,345 rev](https://www.amazon.com/dp/B086TPQJTT) [5**amika dream routine overnight hydrating hair mask | no rinse leave-in treatment for dry hair ultra-hydrating with hyaluronic acid for long-lasting moisture**Amika**$32.33**4.6★334 rev](https://www.amazon.com/dp/B0F8XBTJWL)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Kerastase Magic Night Hair Serum Set with Genesis Anti-Hair Fall Serum and Nutritive 8H Overnight Serum Hair Care Gift Set to Strengthen Nourish and Reduce Break age 2-Piece Set**KÉRASTASE**$76.69**63 rev3mo ago](https://www.amazon.com/dp/B0GJFWD26N) [**KRASTASE Chronologiste Overnight Youth Serum Anti-Aging Night Serum Infused with Hyaluronic Acid & Abyssine Hydrates Plumps & Restores Shine 90ml**KÉRASTASE**$64.44**147 rev4mo ago](https://www.amazon.com/dp/B0GJDXD9S2) [**Kerastase Genesis Hair Serum - Daily Strengthening Treatment for Weak Hair Silicone-Free Anti-Breakage Nourishes and Reinforces Hair Serum Fortifiant 1 Fl Oz**KÉRASTASE**$32.89**2,345 rev4mo ago](https://www.amazon.com/dp/B0G3D8F18H) [**amika dream routine overnight hydrating hair mask | no rinse leave-in treatment for dry hair ultra-hydrating with hyaluronic acid for long-lasting moisture**Amika**$32.33**334 rev1y ago](https://www.amazon.com/dp/B0F8XBTJWL) [**Kerastase Nutritive 8H Magic Night Serum - Overnight Treatment for Dry Hair Enhances Shine With Plant-Based Proteins 1.01 Fl Oz Travel Size**KÉRASTASE**$30.96**9,312 rev1y ago](https://www.amazon.com/dp/B0F2QZQWDN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Kerastase Magic Night Hair Serum Set with Genesis Anti-Hair Fall Serum and Nutritive 8H Overnight Serum Hair Care Gift Set to Strengthen Nourish and Reduce Break age 2-Piece Set**KÉRASTASE**$76.69**4.5★**▲ 286%**](https://www.amazon.com/dp/B0GJFWD26N) [**KRASTASE Chronologiste Overnight Youth Serum Anti-Aging Night Serum Infused with Hyaluronic Acid & Abyssine Hydrates Plumps & Restores Shine 90ml**KÉRASTASE**$64.44**4.2★**▲ 236%**](https://www.amazon.com/dp/B0GJDXD9S2) [**Kerastase Genesis Hair Serum - Daily Strengthening Treatment for Weak Hair Silicone-Free Anti-Breakage Nourishes and Reinforces Hair Serum Fortifiant 1 Fl Oz**KÉRASTASE**$32.89**4.5★**▲ 129%**](https://www.amazon.com/dp/B0G3D8F18H) [**Kerastase Elixir Ultime Refillable Hair Oil - Hydrates & Smoothes Frizz Adds Shine With Wild Camellia Nourishes & Strengthens Hair For All Hair Types**KÉRASTASE**$58.20**4.6★**▲ 35%**](https://www.amazon.com/dp/B0D2LV7DHF) [**amika dream routine overnight hydrating hair mask | no rinse leave-in treatment for dry hair ultra-hydrating with hyaluronic acid for long-lasting moisture**Amika**$32.33**4.6★**— 5%**](https://www.amazon.com/dp/B0F8XBTJWL)
**~~View all trending →~~**
## **What buyers say about kerastase serum**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Smell**22%
*“The fragrance is lovely”*
**Soft Feel**12%
*“Leaves my hair soft”*
**Quality-Overall**11%
*“Excellent Product”*
**Hair Growth**7%
*“This product has really strengthened my hair”*
**Value For Money**7%
*“Its super affordable”*
**Moist/Dry**5%
*“Beautifully hydrating”*
**Suitability Straight Hair**3%
*“Its the best for the hair”*
**Brightness/Shine/Glow**3%
*“A perfect shine”*
**Oily/Greasy**2%
*“Its not too oily, smells heavenly without being overpowering and keeps my hair strong and healthy”*
**Hair Styling**2%
*“Makes my hair feel nice”*
### **What buyers complain about **
**Value For Money**21%
*“Expensive”*
**Smell**18%
*“Awful scent”*
**Hair Related**4%
*“Did not work on my hair”*
**Functionality-Overall**3%
*“also possibly not effective”*
**Moist/Dry**3%
*“My hair has been dry and falling out”*
**Oily/Greasy**3%
*“makes your hair super oily”*
**Suitability Short Hair**2%
*“Broke my hair off”*
**Size-Overall**1%
*“The bottle itself is such larger than I thought”*
**Product Condition**1%
*“the product looked used”*
**Thickness**1%
*“has a bit of thickness to it”*
### **Top return reasons **
**Smell**21%
**Functionality-Overall**14%
**Advertised Vs Actual Product**9%
**Value For Money**8%
**Product Condition**7%
**Suitability Short Hair**6%
**Size-Overall**6%
**Moist/Dry**5%
**Oily/Greasy**5%
**Damage/Burn Hair**4%
## **Common questions**
- **Is kerastase serum profitable to sell on Amazon United States?**
- The niche generates $2.4M/yr across 10 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -3.7%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the kerastase serum niche?**
- 3 brands and 4 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in kerastase serum?**
- Top complaints mined from reviews: Value For Money, Smell, Hair Related. The return rate is 0.9%.
- **When does demand for kerastase serum peak?**
- Demand is steady year-round — the busiest month runs 1.9× the quietest.
- **What does it cost to enter the kerastase serum niche?**
- Listings span $20.87–$76.69; the average listing price is $46.88 (sweet spot $15–$100). The average incumbent carries 3,557 reviews — the moat a new listing must climb.
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