Is interdental toothbrush profitable to sell on Amazon United Kingdom?

The niche generates £381K/yr across 15 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -18.3%. Flapen's verdict: Skip it (43/100).

How competitive is the interdental toothbrush niche?

8 brands and 71 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in interdental toothbrush?

Top complaints mined from reviews: Durability, Charging, Quality-Overall. The return rate is 0.4%.

What does it cost to enter the interdental toothbrush niche?

Listings span £2.88–£21.45; the average listing price is £8.26 (sweet spot $15–$100). The average incumbent carries 16,549 reviews — the moat a new listing must climb.

interdental toothbrush

Skip it

Soft demand (-18.3% this quarter) — this niche doesn't clear our bar today.

Conversion

Incredible16.7%

search→purchase rate — share of searches ending in a sale

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Market size

Good£381K

£381K/yr · 277K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Price range

Okay£2.88–£21.45

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Bad£8.26

avg listing price — sweet spot $15–$100

Competition

Bad75%

top-5 click share — a locked-up shelf

Review moat

Bad16,549.27

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-18.3%

90-day search growth — must beat 0% to launch

Brand share

Bad94%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, interdental toothbrush is a £381K/yr Amazon United Kingdom market (277K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 43/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

interdental toothbrush market data

Units sold / yr: 40K–50K; avg 2,500–3,000/product
Revenue / yr: £330K–£413K; units × avg price
Conversion rate: 16.7%
Avg BSR: #74
Page quality: 0%
Prime: 93%
Sponsored: 93%
Out of stock: 0.0%
Avg brand age: 39 months
Avg seller age: 157 days

Competition & brand share

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 rising

Sellers

Top-5 brand share

94%

Top 20: 99%

Top-5 click share

75%

Top 20: 100%

Open market

TePe81%
QGH4%
OCBA3%
HANGSUN3%
Stoddard Icon2%
Inscape Data2%
Open — no brand owns it (2 brands, 5%)

Demand

Weekly Amazon search volume, last 42 weeks — -18.3% search growth over the last 90 days.

Open Trend

Top interdental toothbrush search terms

dental54K/yr -25.5%1.1% conv.
interdental brushes red27K/yr -2.0%19.1% conv.
dental care19K/yr -24.1%1.3% conv.
tepe red16K/yr +3.3%26.8% conv.
red teepees dental brushes13K/yr -3.5%27.5% conv.
tepe interdental brushes red28K/yr -54.9%24.7% conv.
oral care13K/yr -16.1%0.6% conv.
oral hygiene11K/yr -18.9%0.5% conv.
red tepe interdental brushes11K/yr -9.1%27.5% conv.
oral hygiene products12K/yr -6.5%1.0% conv.

All search terms

Top interdental toothbrush 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 15 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

TePe Interdental Brush Original Red 0.5mm/ISO 2 8pcs efficient Cleaning Between Teeth Plaque Remover and Dental flosser for Narrow Gaps

TePe£3.264.6★6,871 rev

TePe Interdental Brush Original Red 0.5mm/ISO 2 20pcs Plaque Removal efficient Clean Between the Teeth Tooth Floss for Narrow Gaps

TePe£8.634.6★76,837 rev

TePe Interdental Brush Angle Red 0.5mm/ISO 2 6pcs Interspace Cleaning Plaque Remover for Teeth with Narrow Gaps ensures Strong Gums and Teeth Carton Pack

TePe£2.884.6★2,603 rev

TePe Interdental Brushes Original Red 0.5 mm Pack of 25

TePe£10.474.7★1,453 rev

TePe Interdental Brushes Angle Red 0.5 mm Pack of 25

TePe£11.304.7★1,217 rev

Newest

by launch date

Tooth Repair Kit with 60ml Gel for Enamel & Gum Protection Liquid Tooth Armor for Chipped Teeth & Fresh Breath Receding Gums Repair Solution

AuraBeen£6.8019 rev

7mo ago

Interdental Brushes 50 Pcs 3 mm Red Tooth Picks Flossing Gap Cleaning Brushes for Teeth and Daily Oral Care

QGH£6.2911 rev

7mo ago

TePe Interdental Brush Extra Soft Red 0.5mm/ISO 2 20pcs efficient Cleaning Between Teeth Plaque Remover and Dental flosser for Narrow Gaps

TePe£8.841,026 rev

1y ago

TePe Interdental Brush Angle Red 0.5mm/ISO 2 6pcs Interspace Cleaning Plaque Remover for Teeth with Narrow Gaps ensures Strong Gums and Teeth Carton Pack

TePe£2.882,603 rev

1y ago

COSLUS Water Dental Flosser for Teeth Cordless: Portable Oral Irrigator 300ML 5 Jet Tips Rechargeable Tooth Flosser Teeth Braces Pick IPX7 Waterproof Irrigation Cleaner for Travel Home

--£16.7146,279 rev

2y ago

What buyers say about interdental toothbrush

What buyers praise and complain about, mined from review topics.

What buyers love

Oral Hygiene22%

“Excellent for you teeth”

Quality-Overall16%

“Good quality product and excellent customer service and company”

Value For Money10%

“worth every penny”

Advertised Vs Actual Product8%

“Working as advertised”

Ease Of Use7%

“Ease of use”

Strength4%

“strong enough to get between the teeth”

Efficiency3%

“Works Well”

Breathability2%

“Clean breathe, nice and wonderful”

Battery Life2%

“Battery life seems pretty good”

Cleansing2%

“Clean teeth”

What buyers complain about

Durability24%

“Didnt last”

Charging16%

“wouldn't charge at all”

Quality-Overall6%

“Poor Quality”

Oral Hygiene5%

“Poor for gum health”

Size-Overall4%

“slightly larger than I thought”

Touch/Button Controls3%

“already the on/off switch has stopped working”

Value For Money3%

“expensive”

Ease Of Use2%

“uncomfortable to use”

Strength2%

“I found TePe in Superdrug after using their own brand. which was way too flimsy.”

Battery Life2%

“The battery simply died”

Top return reasons

Functionality-Overall19%

Charging12%

Size-Overall8%

Defective Material/Parts6%

Quality-Overall5%

Strength5%

Color4%

Ease Of Use4%

Leak-Proof3%

Tooth Sensitivity3%

Common questions

Is interdental toothbrush profitable to sell on Amazon United Kingdom?: The niche generates £381K/yr across 15 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -18.3%. Flapen's verdict: Skip it (43/100).
How competitive is the interdental toothbrush niche?: 8 brands and 71 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in interdental toothbrush?: Top complaints mined from reviews: Durability, Charging, Quality-Overall. The return rate is 0.4%.
What does it cost to enter the interdental toothbrush niche?: Listings span £2.88–£21.45; the average listing price is £8.26 (sweet spot $15–$100). The average incumbent carries 16,549 reviews — the moat a new listing must climb.