---
title: "Selenium Sulfide Shampoo — £468K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/beauty/selenium-sulfide-shampoo"
last_updated: "2026-08-06T05:56:52.036Z"
locale: en
meta:
description: "Niche score 48/100 · £468K/yr market · 331K searches/yr · £13.62 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · £468K/yr market · 331K searches/yr · £13.62 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Selenium Sulfide Shampoo — £468K/yr Amazon UK Niche (2026) - Flapen"
---
# **selenium sulfide shampoo**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 58Growth 34Conversion 89Competition 22Returns 100Price range 73Avg price 63Brand share 0Review moat 39Quality gap 35
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****10.4%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****£8.27–£33.26**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****£13.62**
avg listing price — sweet spot $15–$100
**Market size**
**Good****£468K**
£468K/yr · 331K searches
**Review moat**
**Okay****2,556.25**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+6.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****73%**
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 Kingdom niche tracking, selenium sulfide shampoo is a £468K/yr Amazon United Kingdom market (331K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jun. Verdict: Skip it — 48/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **selenium sulfide shampoo market data**
- **Units sold / yr**
- **30K–40K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **£409K–£545K**
- units × avg price
- **Conversion rate**
- **10.4%**
- **Avg BSR**
- **#512**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **75%**
- **Out of stock**
- **2.3%**
- **Avg brand age**
- **56 months**
- **Avg seller age**
- **151 days**
## **Competition & brand share**
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▼falling
**Sellers**
**31**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**73%**
Top 20: 100%
**Open market**
**0%**
- VICHY91% - Head & Shoulders6% - Sulsena2%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +6.8% search growth over the last 90 days.
7K5KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/uk/beauty/selenium-sulfide-shampoo/trend)
## **Top selenium sulfide shampoo search terms**
- **dercos anti-dandruff shampoo**78K/yr+14.8%12.2% conv. - **vichy dercos**42K/yr+72.9%9.3% conv. - **dercos**38K/yr+1.1%7.6% conv. - **dercos shampoo**36K/yr-20.1%7.5% conv. - **selenium sulfide shampoo**29K/yr+4.1%5.1% conv. - **vichy dercos shampoo anti dandruff**30K/yr-13.8%11.6% conv. - **vichy shampoo**23K/yr-6.7%6.4% conv. - **head and shoulders clinical strength**16K/yr+5.1%9.3% conv. - **vichy dercos shampoo**11K/yr+1.8%8.0% conv. - **selenium sulphide shampoo**11K/yr+5.8%3.8% conv. [**All search terms **](https://flapen.com/research/uk/beauty/selenium-sulfide-shampoo/search-terms)
## **Top selenium sulfide shampoo 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%£47K20%£94K30%£141K40%£187K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Vichy Dercos Technique Anti-Dandruff Purifying Shampoo With 1% Salicylic Acid & Selenium Disulfide For Sensitive Oily Hair & Scalp Removes Visible Flakes 390ml**VICHY**£13.16**4.7★11,379 rev](https://www.amazon.co.uk/dp/B00WN2BY7G) [2**Vichy Dercos Anti-Dandruff Dermatological Shampoo for Dry Hair & Sensitive Scalp with Salicylic Acid & Selenium Sulfide 200ml Soothes Itchiness & Nourishes.**VICHY**£9.73**4.7★6,961 rev](https://www.amazon.co.uk/dp/B00VTQXCAE) [3**Vichy Dercos Energy+ Stimulating Anti-Hair Loss Shampoo with Aminexil 400ml**VICHY**£14.43**4.6★5,388 rev](https://www.amazon.co.uk/dp/B004SBLR4U) [4**Vichy Dercos Anti-Dandruff Dermatological Shampoo for Dry Hair 390 ml Refill Pouch**VICHY**£13.33**4.8★752 rev](https://www.amazon.co.uk/dp/B0F1FXH4X1) [5**Vichy Dercos Anti-Dandruff and Anti-Itch 2in1 Dermatological Conditioning Shampoo Treats and Protects Against Dandruff 390ml**VICHY**£15.08**4.6★428 rev](https://www.amazon.co.uk/dp/B0DDTVL456)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vichy Dercos Aminexil Clinical R.E.G.E.N. Booster Advanced Anti-Hair Loss & Hair Renewing Serum with 1.5% Aminexil Ginger & Niacinamide For Men & Women 90ml**VICHY**£33.26**188 rev10mo ago](https://www.amazon.co.uk/dp/B0FH5FKY2W) [**Vichy Dercos Anti-Dandruff Dermatological Shampoo for Dry Hair 390 ml Refill Pouch**VICHY**£13.33**752 rev1y ago](https://www.amazon.co.uk/dp/B0F1FXH4X1) [**Vichy Dercos Anti-Dandruff Dermatological Shampoo for Normal to Oily Hair 390 ml Refill Pouch**VICHY**£13.53**424 rev1y ago](https://www.amazon.co.uk/dp/B0F1FXGTVJ) [**Vichy Dercos Anti-Dandruff Water to Foam Shampoo with Salicylic Acid 200ml**VICHY**£12.95**106 rev1y ago](https://www.amazon.co.uk/dp/B0F1G2HX67) [**Head & Shoulders Cooling Itch Rescue Anti Dandruff Shampoo 400ml**Head & Shoulders**£10.12**923 rev1y ago](https://www.amazon.co.uk/dp/B0DVCFK9C5)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Vichy Dercos CHAMPU Dandruff Dry 400 ml**VICHY**£15.79**4.7★**▲ 236%**](https://www.amazon.co.uk/dp/B07D6V4PMD) [**Vichy Dercos Aminexil Clinical R.E.G.E.N. Booster Advanced Anti-Hair Loss & Hair Renewing Serum with 1.5% Aminexil Ginger & Niacinamide For Men & Women 90ml**VICHY**£33.26**3.9★**▲ 181%**](https://www.amazon.co.uk/dp/B0FH5FKY2W) [**Vichy Dercos Anti-Dandruff and Anti-Itch 2in1 Dermatological Conditioning Shampoo Treats and Protects Against Dandruff 390ml**VICHY**£15.08**4.6★**▲ 144%**](https://www.amazon.co.uk/dp/B0DDTVL456) [**Vichy Dercos Anti-Dandruff Dermatological Shampoo for Dry Hair & Sensitive Scalp with Salicylic Acid & Selenium Sulfide 200ml Soothes Itchiness & Nourishes.**VICHY**£9.73**4.7★**▲ 106%**](https://www.amazon.co.uk/dp/B00VTQXCAE) [**Vichy Dercos Anti-Dandruff Water to Foam Shampoo with Salicylic Acid 200ml**VICHY**£12.95**4.6★**▲ 84%**](https://www.amazon.co.uk/dp/B0F1G2HX67)
**~~View all trending →~~**
## **What buyers say about selenium sulfide shampoo**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“Overall, its effective and refreshing—definitely keeping it in my routine”*
**Smell**11%
*“the smell is mild”*
**Value For Money**11%
*“Worth it”*
**Allergies**8%
*“Works fast and stops irritation”*
**Advertised Vs Actual Product**4%
*“its doing what it should”*
**Efficiency**4%
*“it does seem very effective at doing what it is meant to do”*
**Hair Growth**3%
*“is absolutely the best hair-strengthening shampoo”*
**Soft Feel**3%
*“It leaves my hair so soft”*
**Lather**3%
*“Not much is needed to get a good lather so it should last a good while”*
**Cleansing**2%
*“Effective Shampoo”*
### **What buyers complain about **
**Value For Money**20%
*“bit expensive”*
**Allergies**17%
*“Had a really bad reaction to this”*
**Smell**13%
*“The smell is quite unpleasant, with a mix of clinical, medical, mango and a strong sulphate type scent”*
**Ease Of Use**7%
*“routine has been difficult”*
**Functionality-Overall**4%
*“After reading reviews here I thought it would make some difference but it made none.”*
**Moist/Dry**3%
*“This can make your hair feel dry while your washing it”*
**Hair Related**3%
*“my hair feels lifeless now”*
**Damage/Burn Hair**2%
*“Do not used if you have dry hair or bleached damaged hair”*
**Thickness**2%
*“thin and static”*
**Quality-Overall**2%
*“Others are better”*
## **Common questions**
- **Is selenium sulfide shampoo profitable to sell on Amazon United Kingdom?**
- The niche generates £468K/yr across 16 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +6.8%. Flapen's verdict: Skip it (48/100).
- **How competitive is the selenium sulfide shampoo niche?**
- 3 brands and 31 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in selenium sulfide shampoo?**
- Top complaints mined from reviews: Value For Money, Allergies, Smell. The return rate is 0.1%.
- **When does demand for selenium sulfide shampoo peak?**
- Demand peaks in Jun; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the selenium sulfide shampoo niche?**
- Listings span £8.27–£33.26; the average listing price is £13.62 (sweet spot $15–$100). The average incumbent carries 2,556 reviews — the moat a new listing must climb.
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