expanding floss
Skip itPrices mostly outside the sweet spot ($2.48–$13.62) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Incredible12.8%search→purchase rate — share of searches ending in a sale
Review moat
Good1,035.08avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Growth
Okay+9.9%90-day search growth — must beat 0% to launch
Avg price
Bad£6.27avg listing price — sweet spot $15–$100
Competition
Bad81%top-5 click share — a locked-up shelf
Market size
Bad£61K£61K/yr · 76K searches
Brand share
Bad96%top-5 brand share — brand-locked demand
Price range
Bad£2.48–£13.62cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, expanding floss is a £61K/yr Amazon United Kingdom market (76K searches/yr). The top 5 brands hold 96% of demand. Verdict: Skip it — 40/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
expanding floss market data
- Units sold / yr
- 8K–10K
- avg 500–750/product
- Revenue / yr
- £50K–£63K
- units × avg price
- Conversion rate
- 12.8%
- Avg BSR
- #48
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 83%
- Out of stock
- 0.0%
- Avg brand age
- 60 months
- Avg seller age
- 160 days
Competition & brand share
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.Brands
6 falling
Sellers
68
Top-5 brand share
96%
Top 20: 97%
Top-5 click share
81%
Top 20: 100%
Open market
2%
- Burst27%
- TePe26%
- Beauty Formulas19%
- RAZOKO14%
- GUM10%
- --3%
- Open — no brand owns it (2%)
Demand
Weekly Amazon search volume, last 29 weeks — +9.9% search growth over the last 90 days.Top expanding floss search terms
- expanding floss38K/yr
- expanding dental floss9K/yr
- burst floss7K/yr
- tepe floss7K/yr
- tepe dental floss4K/yr
- expandable floss4K/yr
- thick floss4K/yr
- expanding floss dental3K/yr
Top expanding floss 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 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
TePe Dental Floss Expanding Floss Multiple Threads with Increased Surface for a Gentle and efficient Cleaning Between Teeth for Very Narrow Gaps
TePe£2.894.2★697 rev
Beauty Formulas Active Oral Care Expanding Dental Floss with Mint Wax Fluoride 50 Metre Size
Beauty Formulas£3.204.4★117 rev
BURST Expanding Dental Floss (Mint Eucalyptus/40 Yards) | Expanding Floss Woven with Xylitol Coating to Fight Cavities Plaque Removal & Stain Absorbing | Shred-Resistant | Vegan | Paraben Free
Burst£3.804.6★2,107 rev
Expanding Dental Floss with Coconut Oil Mint Flavour Shred-Resistant
RAZOKO£7.604.3★633 rev
GUM Expanding Floss-30m
GUM£4.504.2★2,615 rev
Newest
by launch date
Wisdom Fresh Effect Dental Floss - Pack of 3 x 30m | Mint Flavoured Expanding Waxed Floss for Plaque Removal & Gum Health | Shred-Resistant Teeth Cleaning Floss for Tight Spaces
--£7.5652 rev
BURST Expanding Dental Floss (Mint Eucalyptus/40 Yards) | Expanding Floss Woven with Xylitol Coating to Fight Cavities Plaque Removal & Stain Absorbing | Shred-Resistant | Vegan | Paraben Free
Burst£3.802,107 rev
GUM Expanding Floss | removes Plaque from Between Teeth | expands into Large interdental Spaces | Ideal for Sensitive Gums and Teeth | 4x30m (+1 Bonus Sample)
GUM£13.621,015 rev
TePe Mini Flosser 36pcs flossers for Teeth efficient Dental Plaque Removal Tool for Easy Cleaning Between Teeth for Narrow Gaps
TePe£2.48531 rev
BURST Expanding Dental Floss (Mint Eucalyptus/80 Yards) | Expanding Floss Woven with Xylitol Coating to Fight Cavities Plaque Removal & Stain Absorbing | Shred-Resistant | Vegan | Paraben Free
Burst£7.602,107 rev
Trending
90-day click momentum
BURST Expanding Dental Floss Refills (32 Yards/3 Pack) | Mint Eucalyptus Aroma Bobbins | Woven Tooth Floss | Stain-Absorbing | Vegan | Paraben BPA & Cruelty-Free | Smart Expanding Floss Refills
Burst£9.194.6★
BURST Expanding Dental Floss (Mint Eucalyptus/40 Yards) | Expanding Floss Woven with Xylitol Coating to Fight Cavities Plaque Removal & Stain Absorbing | Shred-Resistant | Vegan | Paraben Free
Burst£3.804.6★
TePe Dental Floss Expanding Floss Multiple Threads with Increased Surface for a Gentle and efficient Cleaning Between Teeth for Very Narrow Gaps
TePe£2.894.2★
BURST Expanding Dental Floss (Mint Eucalyptus/80 Yards) | Expanding Floss Woven with Xylitol Coating to Fight Cavities Plaque Removal & Stain Absorbing | Shred-Resistant | Vegan | Paraben Free
Burst£7.604.6★
Beauty Formulas Active Oral Care Expanding Dental Floss with Mint Wax Fluoride 50 Metre Size
Beauty Formulas£3.204.4★
What buyers say about expanding floss
What buyers praise and complain about, mined from review topics.What buyers love
“Nice and soft on the gums”
“Better than most brands”
“Good value”
“It does the job”
“It fluffs up nicely to give effective cleaning”
“Easy to use”
“Great expanding floss”
“really like the aftertaste. feels fresh”
“Good strong sticks and floss”
“Work well”
What buyers complain about
“They break easily”
“Cant replace interdental brush”
“thickness”
“doesnt expand”
“the oral b product costs more”
“It's not what I imagined, too thick and it really irritates my teeth”
“Not the best”
“are very difficult to use”
“It does not fit in the small gaps between my teeth despite it being the smallest size”
“THE ADVERTISED DESCRIPTION FAILS TO MENTION THE MINT FLAVOUR”
Top return reasons
Common questions
- Is expanding floss profitable to sell on Amazon United Kingdom?
- The niche generates £61K/yr across 12 tracked products. 90-day search growth is +9.9%. Flapen's verdict: Skip it (40/100).
- How competitive is the expanding floss niche?
- 6 brands and 68 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 96% of demand.
- What do buyers complain about in expanding floss?
- Top complaints mined from reviews: Durability, Oral Hygiene, Thickness. The return rate is 0.1%.
- What does it cost to enter the expanding floss niche?
- Listings span £2.48–£13.62; the average listing price is £6.27 (sweet spot $15–$100). The average incumbent carries 1,035 reviews — the moat a new listing must climb.