---
title: "Sebastian Dark Oil — £118K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/baby-products/sebastian-dark-oil"
last_updated: "2026-08-11T06:55:51.631Z"
locale: en
meta:
description: "Niche score 51/100 · £118K/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 51/100 · £118K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Sebastian Dark Oil — £118K/yr Amazon UK Niche (2026) - Flapen"
---
# **sebastian dark oil**
**Worth a look**
Shows low returns (0.2%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 28Growth 24Conversion 64Competition 69Returns 99Price range 89Avg price 89Brand share 0Review moat 72Quality gap 43
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****£20.68**
avg listing price — sweet spot $15–$100
**Price range**
**Great****£11.74–£58.85**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****624.06**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****43%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Good****5.7%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£118K**
£118K/yr · 100K searches
**Growth**
**Bad****-1.5%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, sebastian dark oil is a £118K/yr Amazon United Kingdom market (100K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Oct–Nov–Dec. Verdict: Worth a look — 51/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sebastian dark oil market data**
- **Units sold / yr**
- **6K–8K**
- avg 250–500/product
- **Revenue / yr**
- **£124K–£165K**
- units × avg price
- **Conversion rate**
- **5.7%**
- **Avg BSR**
- **#367**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **52%**
- **Out of stock**
- **8.8%**
- **Avg brand age**
- **65 months**
- **Avg seller age**
- **156 days**
## **Competition & brand share**
The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**2 **▼falling
**Sellers**
**35**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**43%**
Top 20: 87%
**Open market**
**0%**
- SEBASTIAN98% - Sebastian Professional2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 76 weeks — -1.5% search growth over the last 90 days.
4K3KSpike '25Prime Day '25Black Friday '25Spike '26 seasonFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/uk/baby-products/sebastian-dark-oil/trend)
## **Top sebastian dark oil search terms**
- **sebastian dark oil**31K/yr+5.1%9.2% conv. - **sebastian shampoo**15K/yr+50.9%5.1% conv. - **sebastian**22K/yr-14.6%1.4% conv. - **sebastian hair product**19K/yr-26.0%3.7% conv. - **sebastian shampoo and conditioner**6K/yr+23.6%2.7% conv. - **sebastian dark oil shampoo**7K/yr-38.9%10.5% conv. [**All search terms **](https://flapen.com/research/uk/baby-products/sebastian-dark-oil/search-terms)
## **Top sebastian dark oil 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%5%£6K10%£12K15%£18K20%£24K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Sebastian Professional Dark Oil Hair Styling Oil 95 ml**SEBASTIAN**£18.39**4.6★8,471 rev](https://www.amazon.co.uk/dp/B01CNVYGN0) [2**Sebastian Professional Dark Oil Lightweight Shampoo For Silky Smooth and Shiny Hair Add Natural Body For All Hair Types 1L**SEBASTIAN**£24.31**4.7★1,773 rev](https://www.amazon.co.uk/dp/B07TDR1H6H) [3**Sebastian Professional Dark Oil Silky Shine Shampoo - Revitalising Hair Shampoo Provides Weight & Shine for Dry & Frizzy Hair (280ml)**SEBASTIAN**£17.72**4.3★49 rev](https://www.amazon.co.uk/dp/B0G59J4SNW) [4**Sebastian Professional Dark Oil Lightweight Shampoo For Silky Smooth and Shiny Hair Add Natural Body For All Hair Types 250ml**SEBASTIAN**£13.47**4.7★1,773 rev](https://www.amazon.co.uk/dp/B07V5JJPMY) [5**SEBASTIAN PROFESSIONAL Penetraitt Shampoo 250ml and Conditioner 250ml**SEBASTIAN**£25.67**4.6★736 rev](https://www.amazon.co.uk/dp/B00AO583V4)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Sebastian Professional Dark Oil Silky Shine Shampoo - Revitalising Hair Shampoo Provides Weight & Shine for Dry & Frizzy Hair (280ml)**SEBASTIAN**£17.72**49 rev6mo ago](https://www.amazon.co.uk/dp/B0G59J4SNW) [**Sebastian Professional Dark Oil Silky Shine Shampoo - Revitalising Hair Shampoo - Shine for Dry & Frizzy Hair (1000ml)**SEBASTIAN**£34.58**49 rev6mo ago](https://www.amazon.co.uk/dp/B0G59DG813) [**Sebastian Professional Dark Oil Smooth and Shine Styling Oil - Lightweight Styling Oil for Dry & Frizzy Hair (30ml)**SEBASTIAN**£11.74**15 rev6mo ago](https://www.amazon.co.uk/dp/B0FTYF18SM) [**Sebastian Professional Dark Oil Smooth and Shine Styling Oil - Lightweight Styling Oil for Dry & Frizzy Hair (100ml)**SEBASTIAN**£22.11**15 rev6mo ago](https://www.amazon.co.uk/dp/B0G59CCFSZ) [**Sebastian Professional Dark Oil Silkening Hair Mist Lightweight Shine & Smoothness Finisher for Dry & Frizzy Hair (200ml)**SEBASTIAN**£17.38**18 rev6mo ago](https://www.amazon.co.uk/dp/B0G59DQFH3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Sebastian Professional Hydre Hydrating Shampoo for Dehydrated Hair - Deep Moisture Hair Treatment for Dry Hair - Colour-Safe Formula (280ml)**SEBASTIAN**£16.76**4.5★**▲ 232%**](https://www.amazon.co.uk/dp/B0G59GQXGC) [**Sebastian Professional No.Breaker Bonding Shampoo | Strengthens Damaged Hair | Intense Conditioning | For Soft Bouncy Hair | 1000ml**SEBASTIAN**£21.69**4.6★**▲ 213%**](https://www.amazon.co.uk/dp/B0D6783GYR) [**Sebastian Professional Dark Oil Silky Shine Shampoo - Revitalising Hair Shampoo - Shine for Dry & Frizzy Hair (1000ml)**SEBASTIAN**£34.58**4.3★**▲ 190%**](https://www.amazon.co.uk/dp/B0G59DG813) [**Sebastian Professional Dark Oil Silky Shine Shampoo - Revitalising Hair Shampoo Provides Weight & Shine for Dry & Frizzy Hair (280ml)**SEBASTIAN**£17.72**4.3★**▲ 181%**](https://www.amazon.co.uk/dp/B0G59J4SNW) [**Sebastian Professional Dark Oil Smooth and Shine Styling Oil - Lightweight Styling Oil for Dry & Frizzy Hair (30ml)**SEBASTIAN**£11.74**4.7★**▲ 159%**](https://www.amazon.co.uk/dp/B0FTYF18SM)
**~~View all trending →~~**
## **What buyers say about sebastian dark oil**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Smell**24%
*“Hair looks and smells amazing”*
**Quality-Overall**20%
*“Great quality shampoo”*
**Soft Feel**7%
*“My hair feels softer”*
**Brightness/Shine/Glow**6%
*“Soooo shine”*
**Moist/Dry**4%
*“Has definitely helped add moisture to her hair and smells lovely”*
**Lather**4%
*“Having used it four a couple of weeks I can say it lathers and cleans well”*
**Hair Growth**4%
*“really happy with the outcome of my hair”*
**Cleansing**3%
*“It cleans well”*
**Suitability Curly Hair**3%
*“Amazing product, keeps my curly hair frizz free and manageable inbetween shampoo's”*
**Hair Styling**2%
*“Adds shine and protection against heat damage through styling”*
### **What buyers complain about **
**Value For Money**17%
*“Expensive”*
**Smell**5%
*“I honestly think that detergent has been added to the shampoo by someone as it smells disgusting”*
**Size-Overall**5%
*“it is big”*
**Oily/Greasy**4%
*“greasy as oil”*
**Hair Related**4%
*“Even a small amount leaves my hair looking heavy, oily, and unclean instead of fresh”*
**Damage/Burn Hair**3%
*“Bleach damaged hair”*
**Moist/Dry**2%
*“not hydrating for an oil shampoo”*
**Protection**2%
*“I would have hoped this would be protected with sealed packaging”*
**Alcohol Content**2%
*“it'd have been better if it was less alcoholic”*
**Quality-Overall**2%
*“Awful product and over priced”*
### **Top return reasons **
**Advertised Vs Actual Product**20%
**Smell**20%
**Dilute/Watery**10%
**Brightness/Shine/Glow**10%
**Ingredients-Overall**10%
**Suitability Short Hair**10%
**Value For Money**10%
**Oily/Greasy**10%
## **Common questions**
- **Is sebastian dark oil profitable to sell on Amazon United Kingdom?**
- The niche generates £118K/yr across 31 tracked products. 1 of 14 products launched in the last 360 days are still selling. 90-day search growth is -1.5%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the sebastian dark oil niche?**
- 2 brands and 35 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in sebastian dark oil?**
- Top complaints mined from reviews: Value For Money, Smell, Size-Overall. The return rate is 0.2%.
- **When does demand for sebastian dark oil peak?**
- Demand peaks in Jan–Oct–Nov–Dec; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the sebastian dark oil niche?**
- Listings span £11.74–£58.85; the average listing price is £20.68 (sweet spot $15–$100). The average incumbent carries 624 reviews — the moat a new listing must climb.
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