Is big mouth toothbrush profitable to sell on Amazon United States?

The niche generates $85K/yr across 5 tracked products. 90-day search growth is -31.5%. Flapen's verdict: Skip it (35/100).

How competitive is the big mouth toothbrush niche?

1 brands and 3 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in big mouth toothbrush?

Top complaints mined from reviews: Ease Of Use, Add-Ons/Attachments, Value For Money. The return rate is 3.1%.

When does demand for big mouth toothbrush peak?

Demand peaks in Feb–Mar–Sep; the busiest month runs 2.6× the quietest.

What does it cost to enter the big mouth toothbrush niche?

Listings span $20.24–$104.82; the average listing price is $67.84 (sweet spot $15–$100). The average incumbent carries 99 reviews — the moat a new listing must climb.

big mouth toothbrush

Skip it

A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Review moat

Incredible99

avg incumbent reviews — the moat a new listing must climb

Price range

Great$20.24–$104.82

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

Avg price

Great$67.84

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Returns

Okay3.1%

return rate — above 5% kills the launch gate

Conversion

Okay3.3%

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

Market size

Bad$85K

$85K/yr · 38K searches

Growth

Bad-31.5%

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

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals Low Review Barrier High Price

According to Flapen's Amazon United States niche tracking, big mouth toothbrush is a $85K/yr Amazon United States market (38K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Feb–Mar–Sep. Verdict: Skip it — 35/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

big mouth toothbrush market data

Units sold / yr: 750–1K; avg 100–250/product
Revenue / yr: $51K–$68K; units × avg price
Conversion rate: 3.3%
Avg BSR: #414
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 43 months
Avg seller age: 171 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

1 flat

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

BIG MOUTH TOOTHBRUSH100%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — -31.5% search growth over the last 90 days.

Peak months: Feb, Mar, Sep · busiest ÷ quietest = 2.6×

Open Trend

Top big mouth toothbrush search terms

big mouth toothbrush34K/yr -30.2%1.9% conv.
bigmouth toothbrush1K/yr -36.4%1.9% conv.
the big mouth toothbrush1K/yr -45.4%2.1% conv.
big mouth tooth brush701/yr -15.3%1.3% conv.
big mouth toothbrush dr bobbi380/yr -70.8%2.1% conv.
big+mouth+toothbrush89/yr -62.5%0.0% conv.

All search terms

Top big mouth 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 5 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Dr Bobbi Big Mouth Electric Toothbrush for Adults | Ultrasonic Rechargeable Tooth Brush with 5 Cleaning Modes & 2-Minute Smart Timer | Extra Electric Toothbrush Heads Included | Black

BIG MOUTH TOOTHBRUSH$104.824.2★123 rev

BIG MOUTH TOOTHBRUSH Dr Bobbi Electric Toothbrush for Adults Ultrasonic Rechargeable Toothbrush with 5 Cleaning Modes & 2-Minute Smart Timer Retains 42-Day Battery Travel-Ready Design (Green)

BIG MOUTH TOOTHBRUSH$86.864.2★123 rev

Big Mouth Manual Tooth Brush - Wide Head Soft Toothbrushes for Adults - Premium Quality Large Head Soft Bristle Toothbrush for Maximum Coverage Designed for Ages 12 and Up Efficient Brushing (2)

BIG MOUTH TOOTHBRUSH$20.244.5★74 rev

BIG MOUTH TOOTHBRUSH Dr Bobbi Electric Toothbrush for Adults | Ultrasonic Rechargeable Toothbrush with 5 Cleaning Modes & 2-Minute Smart Timer | Retains 42-Day Battery | Travel-Friendly Platinum

BIG MOUTH TOOTHBRUSH$99.094.2★123 rev

Big Mouth Sonic Toothbrush Refill Brush Heads Compatible Toothbrush Heads for Electric Toothbrush Replacement Heads

BIG MOUTH TOOTHBRUSH$28.194.4★52 rev

Newest

by launch date

BIG MOUTH TOOTHBRUSH Dr Bobbi Electric Toothbrush for Adults Ultrasonic Rechargeable Toothbrush with 5 Cleaning Modes & 2-Minute Smart Timer Retains 42-Day Battery Travel-Ready Design (Green)

BIG MOUTH TOOTHBRUSH$86.86123 rev

1y ago

Big Mouth Manual Tooth Brush - Wide Head Soft Toothbrushes for Adults - Premium Quality Large Head Soft Bristle Toothbrush for Maximum Coverage Designed for Ages 12 and Up Efficient Brushing (2)

BIG MOUTH TOOTHBRUSH$20.2474 rev

1y ago

BIG MOUTH TOOTHBRUSH Dr Bobbi Electric Toothbrush for Adults | Ultrasonic Rechargeable Toothbrush with 5 Cleaning Modes & 2-Minute Smart Timer | Retains 42-Day Battery | Travel-Friendly Platinum

BIG MOUTH TOOTHBRUSH$99.09123 rev

2y ago

Big Mouth Sonic Toothbrush Refill Brush Heads Compatible Toothbrush Heads for Electric Toothbrush Replacement Heads

BIG MOUTH TOOTHBRUSH$28.1952 rev

2y ago

Dr Bobbi Big Mouth Electric Toothbrush for Adults | Ultrasonic Rechargeable Tooth Brush with 5 Cleaning Modes & 2-Minute Smart Timer | Extra Electric Toothbrush Heads Included | Black

BIG MOUTH TOOTHBRUSH$104.82123 rev

3y ago

What buyers say about big mouth toothbrush

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

What buyers love

Brush Quality50%

“This brush is not bad at all”

Quality-Overall50%

“Great Product”

What buyers complain about

Ease Of Use50%

“Takes a bit to get use to it”

Add-Ons/Attachments33%

“The toothbrush head doesn't attach securely”

Value For Money17%

“I think its a little pricey for a toothbrush”

Top return reasons

Size-Overall49%

Add-Ons/Attachments10%

Functionality-Overall10%

Value For Money6%

Material Quality4%

Product Condition4%

Quality-Overall3%

Charging2%

Advertised Vs Actual Product2%

Certifications2%

Common questions

Is big mouth toothbrush profitable to sell on Amazon United States?: The niche generates $85K/yr across 5 tracked products. 90-day search growth is -31.5%. Flapen's verdict: Skip it (35/100).
How competitive is the big mouth toothbrush niche?: 1 brands and 3 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in big mouth toothbrush?: Top complaints mined from reviews: Ease Of Use, Add-Ons/Attachments, Value For Money. The return rate is 3.1%.
When does demand for big mouth toothbrush peak?: Demand peaks in Feb–Mar–Sep; the busiest month runs 2.6× the quietest.
What does it cost to enter the big mouth toothbrush niche?: Listings span $20.24–$104.82; the average listing price is $67.84 (sweet spot $15–$100). The average incumbent carries 99 reviews — the moat a new listing must climb.