flea
Worth a lookShows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Competition
Great34%top-5 click share — an open shelf
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Brand share
Good62%top-5 brand share — brands hold most of the demand
Conversion
Good6.4%search→purchase rate — share of searches ending in a sale
Price range
Good£4.85–£28.65cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Good+28.2%90-day search growth — must beat 0% to launch
Avg price
Okay£11.87avg listing price — sweet spot $15–$100
Market size
Okay£160K£160K/yr · 209K searches
Review moat
Bad8,859.13avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United Kingdom niche tracking, flea is a £160K/yr Amazon United Kingdom market (209K searches/yr). The top 5 brands hold 62% of demand. Verdict: Worth a look — 64/100.
Data updated Jul 26, 2026 · scored weekly · How we score niches
flea market data
- Units sold / yr
- 10K–13K
- avg 100–250/product
- Revenue / yr
- £119K–£148K
- units × avg price
- Conversion rate
- 6.4%
- Avg BSR
- #18
- Page quality
- 0%
- Prime
- 89%
- Sponsored
- 91%
- Out of stock
- 4.4%
- Avg brand age
- 49 months
- Avg seller age
- 169 days
Competition & brand share
Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.Brands
19 falling
Sellers
132
Top-5 brand share
62%
Top 20: 100%
Top-5 click share
34%
Top 20: 73%
Open market
30%
- Advantage15%
- Bob Martin14%
- FRONTLINE14%
- Beaphar10%
- Johnsons9%
- Naqua Ltd8%
Demand
Weekly Amazon search volume, last 50 weeks — +28.2% search growth over the last 90 days.Top flea search terms
- flea95K/yr
- flea treatment66K/yr
- flee14K/yr
- fleas6K/yr
- cat and dog flea treatment5K/yr
- pet flea treatment3K/yr
- amazon flea treatment5K/yr
- dog and cat flea treatment3K/yr
- extra strong flea treatment9K/yr
- flee treatment2K/yr
Top flea 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
FRONTLINE Plus Flea & Tick Treatment for Cats and Ferrets - 6 Pipettes
FRONTLINE£18.704.3★13,898 rev

Johnsons 4Fleas Tablets for Cats and Kittens 6 Treatment Pack 14D083
Johnsons£7.034.4★15,503 rev

Advantage Spot On Flea Treatment For Cats Dogs and Rabbits Under 4kg (4 pipettes 40mg) Kills Fleas Within 24 Hours Prevents Further Infestation For Up To Four Weeks in Cats and Dogs
Advantage£13.784.6★17,565 rev

REPELEM Flea Spray for The Home - Professional Strength Household Treatment Killer for Home Kills Fleas Larvae & Eggs (1L Flea Spray)
REPELEM£14.114.2★1,051 rev

Advantage Spot On Flea Treatment For Large Cats and Rabbits Over 4kg (4 pipettes 80mg) Kills Fleas Within 24 Hours Prevents Further Infestation For Up To Four Weeks in Cats
Advantage£13.834.6★17,565 rev
Newest
by launch date
Dog Flea Treatment Large Dog x 2 - Spot on Flea Treatment for Dogs Large 20-40 kg - Fast Acting FleaSolve Solution 2 x Pipettes - 2 x Doses - Effective Spot-On Treatment
Naqua Ltd£8.70820 rev

Cat Flea Treatment Spot On x 2 Pack - Flea Treatment Cat Spot On for Cats & Kittens Over 1kg - Fast-Acting FleaSolve Solution x 2 Pipettes
Naqua Ltd£8.721,768 rev

Cat Flea Treatment Spot On x 6 - Flea Treatment Cat Spot On for Cats & Kittens Over 1kg - 6 Pipettes 6 Doses - Fast-Acting FleaSolve Solution
Naqua Ltd£16.413,799 rev

REPELEM Flea Spray for The Home - Professional Strength Household Treatment Killer for Home Kills Fleas Larvae & Eggs (1L Flea Spray)
REPELEM£14.111,051 rev

Beaphar - FIPROtec COMBO for Cats 6 pipettes - Kills Fleas Flea Eggs Flea Larvae & Ticks - Stops Fleas Multiplying on Pet and in Home - Vet Strength Cat Flea Treatment
Beaphar£11.844,135 rev
Trending
90-day click momentum
Beaphar - FIPROtec Spot-On Flea & Tick Treatment for Medium Dogs 10-20kg - 6 Pipettes - Kills Fleas & Ticks Veterinary Medicine - Easy to Apply Monthly - Suitable for Dogs & Puppies from 8 Weeks
Beaphar£11.004.3★

Beaphar - FIPROtec COMBO for Cats 6 pipettes - Kills Fleas Flea Eggs Flea Larvae & Ticks - Stops Fleas Multiplying on Pet and in Home - Vet Strength Cat Flea Treatment
Beaphar£11.844.2★

REPELEM Flea Spray for The Home - Professional Strength Household Treatment Killer for Home Kills Fleas Larvae & Eggs (1L Flea Spray)
REPELEM£14.114.2★

Dog Flea Treatment Large Dog x 2 - Spot on Flea Treatment for Dogs Large 20-40 kg - Fast Acting FleaSolve Solution 2 x Pipettes - 2 x Doses - Effective Spot-On Treatment
Naqua Ltd£8.704.3★

Virbac Indorex Defence Flea Spray for the Home Long-Lasting 12-Month Protection Against Fleas and Dust Mites 2 x 500ml Can
Virbac£20.954.6★
What buyers say about flea
What buyers praise and complain about, mined from review topics.What buyers love
“much cheaper”
“Brilliant quality”
“As advertised”
“Neutral smell”
“Easy to open and apply”
“Great for all pets”
“Easy to spray”
“No irritation of skin”
“Really strong”
“Very quick”
What buyers complain about
“Doesn't work”
“It's expensive”
“Itching”
“It does smell a bit chemical”
“Absolute garbage”
“bug spray”
“Doesnt last long”
“Very weak product”
“misleading product information”
“Killed thousands of worms”
Top return reasons
Common questions
- Is flea profitable to sell on Amazon United Kingdom?
- The niche generates £160K/yr across 53 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +28.2%. Flapen's verdict: Worth a look (64/100).
- How competitive is the flea niche?
- 19 brands and 132 sellers compete. The top 5 products take 34% of clicks and top 5 brands hold 62% of demand.
- What do buyers complain about in flea?
- Top complaints mined from reviews: Functionality-Overall, Value For Money, Allergies. The return rate is 0.1%.
- What does it cost to enter the flea niche?
- Listings span £4.85–£28.65; the average listing price is £11.87 (sweet spot $15–$100). The average incumbent carries 8,859 reviews — the moat a new listing must climb.