karseell hair mask collagen
Skip itA small market ($60K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great8.6%search→purchase rate — share of searches ending in a sale
Competition
Good47%top-5 click share — leaders hold, buyers still browse
Review moat
Okay1,764.16avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay90%top-5 brand share — brands hold most of the demand
Price range
Okay£1.87–£19.43cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-3.3%90-day search growth — must beat 0% to launch
Avg price
Bad£6.98avg listing price — sweet spot $15–$100
Market size
Bad£60K£60K/yr · 100K searches
According to Flapen's Amazon United Kingdom niche tracking, karseell hair mask collagen is a £60K/yr Amazon United Kingdom market (100K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Feb–Nov–Dec. Verdict: Skip it — 44/100.
Data updated Jul 20, 2026 · scored weekly · How we score niches
karseell hair mask collagen market data
- Units sold / yr
- 6K–8K
- avg 250–500/product
- Revenue / yr
- £42K–£56K
- units × avg price
- Conversion rate
- 8.6%
- Avg BSR
- #319
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 75%
- Out of stock
- 0.0%
- Avg brand age
- 61 months
- Avg seller age
- 156 days
Competition & brand share
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.Brands
11 falling
Sellers
162
Top-5 brand share
90%
Top 20: 100%
Top-5 click share
47%
Top 20: 85%
Open market
7%
- TRESemmé60%
- Kallos17%
- Tresemme Pro Collection5%
- Garnier5%
- Creightons3%
- Dove3%
- Open — no brand owns it (5 brands, 7%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -3.3% search growth over the last 90 days.Peak months: Feb, Nov, Dec · busiest ÷ quietest = 2.3×
Top karseell hair mask collagen search terms
- keratin hair mask41K/yr
- tresemme keratin smooth17K/yr
- tresemme hair mask12K/yr
- tresemme keratin smooth conditioner4K/yr
- tresemme keratin4K/yr
- kallos hair mask6K/yr
- kallos5K/yr
- keratin mask4K/yr
- hair mask keratin4K/yr
- tresemme mask3K/yr
Top karseell hair mask collagen 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
TRESemme Keratin Smooth Deep Smoothing Mask rinse-out hair treatment with hydrolysed keratin for soft shiny frizz-free hair 440 ml
TRESemmé£3.774.5★1,254 rev
Kallos Cosmetics KJMN Keratin Hair Mask for Dry Damaged and Chemically Treated Hair Nourishes and Helps Rebuild Natural Structure Enhances Shine and Texture with Milk Protein 1L
Kallos£7.574.3★14,973 rev
TRESemme Biotin Repair Instant Recovery Mask visibly repairs 7 types of damage in 1 use* for dry damaged hair 440 ml
TRESemmé£3.754.5★622 rev
Tresemme Keratin Smooth Pro Collection Shampoo and Conditioner 2 x 400ml
Tresemme Pro Collection£8.194.6★1,723 rev
Garnier Keratin Sleek Hair Mask Up to 3 Days of Sleek & Shine with 13% Keratin Smoothing Complex and Argan Oil For Frizz Prone & Dry Hair Long Lasting Sleek Look 370ml
Garnier£4.234.4★38 rev
Newest
by launch date
TRESemme Keratin Seal Smooth Conditioner salon-grade hair care for frizz-defying smoothness 300 ml
TRESemmé£2.9127 rev
TRESemme Keratin Seal Smooth Shampoo salon-grade hair care for frizz-defying smoothness 400 ml
TRESemmé£2.9730 rev
TRESemme Keratin Seal Smooth Conditioner salon-grade hair care for frizz-defying smoothness 200 ml
TRESemmé£2.8124 rev
TRESemme Keratin Seal Smooth Mask hair treatment for frizz-defying smoothness 300 ml
TRESemmé£3.984 rev
TRESemme Hydra Molecular Moisture Mask hair treatment for a salon-sculpted look 300 ml
TRESemmé£4.062 rev
Trending
90-day click momentumTRESemme Keratin Seal Smooth Shampoo salon-grade hair care for frizz-defying smoothness 400 ml
TRESemmé£2.974.6★
TRESemme Thermo Sculpt Memory Treatment Hair Mask advanced resilience for repairing damaged hair 300 ml
TRESemmé£3.324.1★
TRESemme Hydra Molecular Moisture Mask hair treatment for a salon-sculpted look 300 ml
TRESemmé£4.065.0★
TRESemme Keratin Seal Smooth Conditioner salon-grade hair care for frizz-defying smoothness 200 ml
TRESemmé£2.814.6★
TRESemme Keratin Seal Smooth Mask hair treatment for frizz-defying smoothness 300 ml
TRESemmé£3.984.4★
What buyers say about karseell hair mask collagen
What buyers praise and complain about, mined from review topics.What buyers love
“Feels good”
“Great scent”
“A reliable choice from a renowned brand”
“Good for the money”
“I use it after I straighten my hair and it looks lovely and shiny too”
“It helps reduce dryness”
“Helps with frizz”
“Easy to use”
“Another noticeable benefit was the healthy appearance it gave my hair”
“It lathers up nicely”
What buyers complain about
“My only complaint is it smells pretty strong”
“However, I noticed it wasnt very conditioning for my hair”
“Not worth the money”
“The tub is huge”
“i found it very tricky to open”
“left my hair very dry”
“There was no foil paper on top either it was used or opened otherwise its fake”
“Caused a skin reaction”
“watery”
“The mask came damaged and broken and all the product was leaking out”
Top return reasons
Common questions
- Is karseell hair mask collagen profitable to sell on Amazon United Kingdom?
- The niche generates £60K/yr across 32 tracked products. 6 of 9 products launched in the last 360 days are still selling. 90-day search growth is -3.3%. Flapen's verdict: Skip it (44/100).
- How competitive is the karseell hair mask collagen niche?
- 11 brands and 162 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 90% of demand.
- What do buyers complain about in karseell hair mask collagen?
- Top complaints mined from reviews: Smell, Hair Related, Value For Money. The return rate is 0.1%.
- When does demand for karseell hair mask collagen peak?
- Demand peaks in Feb–Nov–Dec; the busiest month runs 2.3× the quietest.
- What does it cost to enter the karseell hair mask collagen niche?
- Listings span £1.87–£19.43; the average listing price is £6.98 (sweet spot $15–$100). The average incumbent carries 1,764 reviews — the moat a new listing must climb.