selenium sulfide shampoo
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great10.4%search→purchase rate — share of searches ending in a sale
Price range
Good£8.27–£33.26cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good£13.62avg listing price — sweet spot $15–$100
Market size
Good£468K£468K/yr · 331K searches
Review moat
Okay2,556.25avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+6.8%90-day search growth — must beat 0% to launch
Competition
Bad73%top-5 click share — a locked-up shelf
Brand share
Bad100%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
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.Peak months: Jun · busiest ÷ quietest = 1.8×
Top selenium sulfide shampoo search terms
- dercos anti-dandruff shampoo78K/yr
- vichy dercos42K/yr
- dercos38K/yr
- dercos shampoo36K/yr
- selenium sulfide shampoo29K/yr
- vichy dercos shampoo anti dandruff30K/yr
- vichy shampoo23K/yr
- head and shoulders clinical strength16K/yr
- vichy dercos shampoo11K/yr
- selenium sulphide shampoo11K/yr
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.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Vichy Dercos Technique Anti-Dandruff Purifying Shampoo With 1% Salicylic Acid & Selenium Disulfide For Sensitive Oily Hair & Scalp Removes Visible Flakes 390ml
VICHY£13.164.7★11,379 rev
Vichy Dercos Anti-Dandruff Dermatological Shampoo for Dry Hair & Sensitive Scalp with Salicylic Acid & Selenium Sulfide 200ml Soothes Itchiness & Nourishes.
VICHY£9.734.7★6,961 rev
Vichy Dercos Energy+ Stimulating Anti-Hair Loss Shampoo with Aminexil 400ml
VICHY£14.434.6★5,388 rev
Vichy Dercos Anti-Dandruff Dermatological Shampoo for Dry Hair 390 ml Refill Pouch
VICHY£13.334.8★752 rev
Vichy Dercos Anti-Dandruff and Anti-Itch 2in1 Dermatological Conditioning Shampoo Treats and Protects Against Dandruff 390ml
VICHY£15.084.6★428 rev
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£33.26188 rev
Vichy Dercos Anti-Dandruff Dermatological Shampoo for Dry Hair 390 ml Refill Pouch
VICHY£13.33752 rev
Vichy Dercos Anti-Dandruff Dermatological Shampoo for Normal to Oily Hair 390 ml Refill Pouch
VICHY£13.53424 rev
Vichy Dercos Anti-Dandruff Water to Foam Shampoo with Salicylic Acid 200ml
VICHY£12.95106 rev
Head & Shoulders Cooling Itch Rescue Anti Dandruff Shampoo 400ml
Head & Shoulders£10.12923 rev
Trending
90-day click momentum
Vichy Dercos CHAMPU Dandruff Dry 400 ml
VICHY£15.794.7★
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£33.263.9★
Vichy Dercos Anti-Dandruff and Anti-Itch 2in1 Dermatological Conditioning Shampoo Treats and Protects Against Dandruff 390ml
VICHY£15.084.6★
Vichy Dercos Anti-Dandruff Dermatological Shampoo for Dry Hair & Sensitive Scalp with Salicylic Acid & Selenium Sulfide 200ml Soothes Itchiness & Nourishes.
VICHY£9.734.7★
Vichy Dercos Anti-Dandruff Water to Foam Shampoo with Salicylic Acid 200ml
VICHY£12.954.6★
What buyers say about selenium sulfide shampoo
What buyers praise and complain about, mined from review topics.What buyers love
“Overall, its effective and refreshing—definitely keeping it in my routine”
“the smell is mild”
“Worth it”
“Works fast and stops irritation”
“its doing what it should”
“it does seem very effective at doing what it is meant to do”
“is absolutely the best hair-strengthening shampoo”
“It leaves my hair so soft”
“Not much is needed to get a good lather so it should last a good while”
“Effective Shampoo”
What buyers complain about
“bit expensive”
“Had a really bad reaction to this”
“The smell is quite unpleasant, with a mix of clinical, medical, mango and a strong sulphate type scent”
“routine has been difficult”
“After reading reviews here I thought it would make some difference but it made none.”
“This can make your hair feel dry while your washing it”
“my hair feels lifeless now”
“Do not used if you have dry hair or bleached damaged hair”
“thin and static”
“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.