---
title: "Hair Serum — £782K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/beauty/hair-serum"
last_updated: "2026-08-09T20:06:30.421Z"
locale: en
meta:
description: "Niche score 49/100 · £782K/yr market · 1.1M searches/yr · £8.53 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · £782K/yr market · 1.1M searches/yr · £8.53 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Hair Serum — £782K/yr Amazon UK Niche (2026) - Flapen"
---
# **hair serum**
**Skip it**
Soft demand (-9.6% this quarter) — this niche doesn't clear our bar today.
Market size 72Growth 20Conversion 80Competition 37Returns 100Price range 54Avg price 24Brand share 21Review moat 23Quality gap 47
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****8.2%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****£782K**
£782K/yr · 1.1M searches
**Price range**
**Good****£2.87–£29.16**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Bad****£8.53**
avg listing price — sweet spot $15–$100
**Review moat**
**Bad****7,554.21**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Growth**
**Bad****-9.6%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, hair serum is a £782K/yr Amazon United Kingdom market (1.1M searches/yr). The top 5 brands hold 92% of demand. Demand peaks in Jun. Verdict: Skip it — 49/100.
Data updated Jul 20, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **hair serum market data**
- **Units sold / yr**
- **80K–100K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **£682K–£853K**
- units × avg price
- **Conversion rate**
- **8.2%**
- **Avg BSR**
- **#23**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **74%**
- **Out of stock**
- **1.4%**
- **Avg brand age**
- **56 months**
- **Avg seller age**
- **144 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**9 **▼falling
**Sellers**
**182**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 100%
**Open market**
**6%**
- L'Oreal Paris52% - John Frieda28% - TRESemmé6% - OGX4% - Avon3% - L'Oréal Professionnel Paris3% - Open — no brand owns it (3 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -9.6% search growth over the last 90 days.
40K30KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/uk/beauty/hair-serum/trend)
## **Top hair serum search terms**
- **hair serum**389K/yr-2.1%3.7% conv. - **frizz ease serum**88K/yr-18.4%15.5% conv. - **elvive**98K/yr-7.0%1.9% conv. - **hair serum for frizzy hair**72K/yr-11.3%5.6% conv. - **loreal elvive**74K/yr-8.0%1.2% conv. - **loreal hair serum**53K/yr+4.4%6.8% conv. - **loreal hair oil**53K/yr-20.9%10.4% conv. - **hair serum for dry damaged hair**47K/yr-19.5%5.2% conv. - **loreal hair**44K/yr-15.4%1.1% conv. - **anti frizz hair serum**26K/yr-16.0%4.1% conv. [**All search terms **](https://flapen.com/research/uk/beauty/hair-serum/search-terms)
## **Top 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%£78K20%£156K30%£234K40%£313K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**LOréal Paris Hair Serum Elvive Extraordinary Oil Miracle Intense Nourishment Up to 6x more Shine up to 230 heat protection suitable for all hair types 100ml**L'Oreal Paris**£5.71**4.7★10,404 rev](https://www.amazon.co.uk/dp/B0083H8ASG) [2**John Frieda Frizz Ease The Controller Extra Strength Serum 50ml**John Frieda**£5.51**4.6★185 rev](https://www.amazon.co.uk/dp/B0GC76DS6K) [3**John Frieda Frizz Ease All-in-1 Extra Strength Serum 50ml for Thick Coarse Hair**John Frieda**£4.90**4.5★13,533 rev](https://www.amazon.co.uk/dp/B00HYY7EIG) [4**TRESemmé Lamellar Shine Leave-In Cream Hair Serum with patented Lamellar Technology hair treatment for an ultra-glossy salon finish 200 ml**TRESemmé**£2.87**4.5★1,924 rev](https://www.amazon.co.uk/dp/B0CPFMSFY8) [5**John Frieda Frizz Ease Original Serum 50ml Hydrating Anti-Frizz Serum for Medium to Thick Hair**John Frieda**£5.20**4.5★3,300 rev](https://www.amazon.co.uk/dp/B00HYY7I0A)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**John Frieda Frizz Ease The Controller Extra Strength Serum 50ml**John Frieda**£5.51**185 rev6mo ago](https://www.amazon.co.uk/dp/B0GC76DS6K) [**John Frieda Frizz Ease The Rescuer Lightweight Serum 50ml**John Frieda**£5.81**63 rev6mo ago](https://www.amazon.co.uk/dp/B0GC6CD723) [**John Frieda Frizz Ease The Hydro Sealer Moisture Protect Serum 50ml. Hair Serum for Smooth Finish and Humidity Defence**John Frieda**£5.62**57 rev6mo ago](https://www.amazon.co.uk/dp/B0GC6HB2BG) [**LOreal Paris Elvive Growth Booster Scalp Serum Anti Hair Loss Scalp Treatment with Aminexil Nianimacide and Ginger Extract Reduces Hair Loss 102ml**L'Oreal Paris**£6.92**366 rev1y ago](https://www.amazon.co.uk/dp/B0DGQBYV1R) [**LOréal Paris Hair Serum For Dull Lifeless Hair Elvive Glycolic Gloss Leave-In Treatment With 14% Gloss Complex Fills Hair Fibres For Smoothness And Heat Damage Protection With Mirror Shine 150ml**L'Oreal Paris**£6.27**249 rev2y ago](https://www.amazon.co.uk/dp/B0CQ2ZBLZ3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**John Frieda Frizz Ease The Rescuer Lightweight Serum 50ml**John Frieda**£5.81**3.9★**▲ 107%**](https://www.amazon.co.uk/dp/B0GC6CD723) [**John Frieda Frizz Ease The Controller Extra Strength Serum 50ml**John Frieda**£5.51**4.6★**▲ 93%**](https://www.amazon.co.uk/dp/B0GC76DS6K) [**Garnier Ultimate Blends Hair Honey Repairing Serum for Damaged Hair Non-Sticky Non-Greasy - Up to 6X Smoother & Reduces Up To 94% of Split Ends in 1 Use - 115 ML**Garnier**£4.95**4.6★**▲ 69%**](https://www.amazon.co.uk/dp/B0CQ3147GJ) [**John Frieda Frizz Ease The Hydro Sealer Moisture Protect Serum 50ml. Hair Serum for Smooth Finish and Humidity Defence**John Frieda**£5.62**4.3★**▲ 54%**](https://www.amazon.co.uk/dp/B0GC6HB2BG) [**Avon Advance Techniques Absolute Nourishment Argan Hair Serum 30ml Multi-Tasking Hair Treatment Formulated with Argan Oil Restores Shine and Health to Damaged Hair Cruelty Free**Avon**£4.21**4.6★**▲ 11%**](https://www.amazon.co.uk/dp/B091B2SHXB)
**~~View all trending →~~**
## **What buyers say about hair serum**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Smell**18%
*“it smells divine”*
**Quality-Overall**13%
*“Good quality”*
**Value For Money**9%
*“Good value for money”*
**Soft Feel**8%
*“My hair feels soft”*
**Hair Growth**6%
*“This has saved my hair”*
**Moist/Dry**5%
*“smells good and moisturising”*
**Suitability Curly Hair**4%
*“it does an excellent job of controlling frizz”*
**Brightness/Shine/Glow**4%
*“give it shine”*
**Hair Styling**3%
*“my hair is easier to style”*
**Ease Of Use**3%
*“Easy to use”*
### **What buyers complain about **
**Value For Money**9%
*“Waste of money”*
**Oily/Greasy**9%
*“Very greasy”*
**Smell**4%
*“The smell was completely intolerable for me”*
**Hair Related**4%
*“Sadly its not suited to my hair at all”*
**Functionality-Overall**4%
*“The cap didnt come off so unable to get to the pump”*
**Quality-Overall**4%
*“Rubbish”*
**Moist/Dry**4%
*“Hair still dry”*
**Suitability Short Hair**3%
*“But it unfortunately didn't do anything for my hair”*
**Thickness**3%
*“Quite thick consistency”*
**Allergies**3%
*“Caused bad allergic reaction”*
### **Top return reasons **
**Size-Overall**14%
**Smell**13%
**Oily/Greasy**12%
**Functionality-Overall**8%
**Value For Money**8%
**Quality-Overall**8%
**Advertised Vs Actual Product**6%
**Product Condition**5%
**Adhesion/Stickiness**3%
**Moist/Dry**3%
## **Common questions**
- **Is hair serum profitable to sell on Amazon United Kingdom?**
- The niche generates £782K/yr across 19 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -9.6%. Flapen's verdict: Skip it (49/100).
- **How competitive is the hair serum niche?**
- 9 brands and 182 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 92% of demand.
- **What do buyers complain about in hair serum?**
- Top complaints mined from reviews: Value For Money, Oily/Greasy, Smell. The return rate is 0.1%.
- **When does demand for hair serum peak?**
- Demand peaks in Jun; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the hair serum niche?**
- Listings span £2.87–£29.16; the average listing price is £8.53 (sweet spot $15–$100). The average incumbent carries 7,554 reviews — the moat a new listing must climb.
## **Related niches in Beauty**
- 68 [**cellulite massager**](https://flapen.com/research/uk/beauty/cellulite-massager)£199K/yr+31.0%**Worth a look**- 68 [**anti chafing stick**](https://flapen.com/research/uk/beauty/anti-chafing-stick)£446K/yr+174.2%**Worth a look**- 68 [**mens aftershave**](https://flapen.com/research/uk/beauty/mens-aftershave)£5.0M/yr+20.0%**Launch it**- 68 [**face gems**](https://flapen.com/research/uk/beauty/face-gems)£156K/yr+184.1%**Worth a look**- 68 [**england face paint**](https://flapen.com/research/uk/beauty/england-face-paint)£20K/yr>1,000%**Worth a look**- 68 [**primus aged garlic**](https://flapen.com/research/uk/beauty/primus-aged-garlic)£18K/yr+144.2%**Worth a look**[**All Beauty niches **](https://flapen.com/research/uk/beauty)