---
title: "Big Mouth Toothbrush — $85K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/big-mouth-toothbrush"
last_updated: "2026-08-10T06:45:09.507Z"
locale: en
meta:
description: "Niche score 35/100 · $85K/yr market · 38K searches/yr · $67.84 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 35/100 · $85K/yr market · 38K searches/yr · $67.84 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Big Mouth Toothbrush — $85K/yr Amazon US Niche (2026) - Flapen"
---
# **big mouth toothbrush**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 21Growth 9Conversion 41Competition 0Returns 49Price range 90Avg price 87Brand share 0Review moat 95Quality gap 75
**Review moat**
**Incredible****99**
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**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Returns**
**Okay****3.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****3.3%**
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**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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**
**3**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- 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.
5K4KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26Prime Day '26 seasonDecMarJunAugNovMarMay
Peak months: Feb, Mar, Sep · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/health-household/big-mouth-toothbrush/trend)
## **Top big mouth toothbrush search terms**
- **big mouth toothbrush**34K/yr-30.2%1.9% conv. - **bigmouth toothbrush**1K/yr-36.4%1.9% conv. - **the big mouth toothbrush**1K/yr-45.4%2.1% conv. - **big mouth tooth brush**701/yr-15.3%1.3% conv. - **big mouth toothbrush dr bobbi**380/yr-70.8%2.1% conv. - **big+mouth+toothbrush**89/yr-62.5%0.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/big-mouth-toothbrush/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.
0%15%$13K30%$26K45%$38K60%$51K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**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**$104.82**4.2★123 rev](https://www.amazon.com/dp/B0C9L74TGJ) [2**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**$86.86**4.2★123 rev](https://www.amazon.com/dp/B0DM71N2MS) [3**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**$20.24**4.5★74 rev](https://www.amazon.com/dp/B0DK84YV15) [4**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**$99.09**4.2★123 rev](https://www.amazon.com/dp/B0D4MRK8XY) [5**Big Mouth Sonic Toothbrush Refill Brush Heads Compatible Toothbrush Heads for Electric Toothbrush Replacement Heads**BIG MOUTH TOOTHBRUSH**$28.19**4.4★52 rev](https://www.amazon.com/dp/B0CCZGG7WQ)
### **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**$86.86**123 rev1y ago](https://www.amazon.com/dp/B0DM71N2MS) [**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**$20.24**74 rev1y ago](https://www.amazon.com/dp/B0DK84YV15) [**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**$99.09**123 rev2y ago](https://www.amazon.com/dp/B0D4MRK8XY) [**Big Mouth Sonic Toothbrush Refill Brush Heads Compatible Toothbrush Heads for Electric Toothbrush Replacement Heads**BIG MOUTH TOOTHBRUSH**$28.19**52 rev2y ago](https://www.amazon.com/dp/B0CCZGG7WQ) [**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**$104.82**123 rev3y ago](https://www.amazon.com/dp/B0C9L74TGJ)
### **Trending**
90-day click momentum
[**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**$104.82**4.2★**▲ 30%**](https://www.amazon.com/dp/B0C9L74TGJ) [**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**$20.24**4.5★**— 7%**](https://www.amazon.com/dp/B0DK84YV15) [**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**$99.09**4.2★**▼ 15%**](https://www.amazon.com/dp/B0D4MRK8XY) [**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**$86.86**4.2★**▼ 24%**](https://www.amazon.com/dp/B0DM71N2MS) [**Big Mouth Sonic Toothbrush Refill Brush Heads Compatible Toothbrush Heads for Electric Toothbrush Replacement Heads**BIG MOUTH TOOTHBRUSH**$28.19**4.4★**▼ 28%**](https://www.amazon.com/dp/B0CCZGG7WQ)
## **What buyers say about big mouth toothbrush**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Brush Quality**50%
*“This brush is not bad at all”*
**Quality-Overall**50%
*“Great Product”*
### **What buyers complain about **
**Ease Of Use**50%
*“Takes a bit to get use to it”*
**Add-Ons/Attachments**33%
*“The toothbrush head doesn't attach securely”*
**Value For Money**17%
*“I think its a little pricey for a toothbrush”*
### **Top return reasons **
**Size-Overall**49%
**Add-Ons/Attachments**10%
**Functionality-Overall**10%
**Value For Money**6%
**Material Quality**4%
**Product Condition**4%
**Quality-Overall**3%
**Charging**2%
**Advertised Vs Actual Product**2%
**Certifications**2%
## **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.
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