---
title: "Canker Sore Mouthwash — $574K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/canker-sore-mouthwash"
last_updated: "2026-08-10T23:53:56.676Z"
locale: en
meta:
description: "Niche score 49/100 · $574K/yr market · 229K searches/yr · $14.66 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $574K/yr market · 229K searches/yr · $14.66 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Canker Sore Mouthwash — $574K/yr Amazon US Niche (2026) - Flapen"
---
# **canker sore mouthwash**
**Skip it**
A concentrated shelf (top 5 take 80% of clicks) — this niche doesn't clear our bar today.
Market size 63Growth 22Conversion 98Competition 17Returns 98Price range 74Avg price 72Brand share 27Review moat 22Quality gap 28
**Conversion**
**Incredible****17.1%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Price range**
**Good****$6.43–$39.72**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****$14.66**
avg listing price — sweet spot $15–$100
**Market size**
**Good****$574K**
$574K/yr · 229K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****89%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-5.5%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****10,346.4**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****80%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, canker sore mouthwash is a $574K/yr Amazon United States market (229K searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Feb–Mar–Oct. Verdict: Skip it — 49/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **canker sore mouthwash market data**
- **Units sold / yr**
- **40K–50K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **$586K–$733K**
- units × avg price
- **Conversion rate**
- **17.1%**
- **Avg BSR**
- **#68**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **70%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **90 months**
- **Avg seller age**
- **148 days**
## **Competition & brand share**
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **—flat
**Sellers**
**59**
**Top-5 brand share**
**89%**
Top 20: 100%
**Top-5 click share**
**80%**
Top 20: 100%
**Open market**
**6%**
- Oral-B47% - Colgate17% - Orajel12% - Canker-X7% - GuruNanda6% - PHS Brands5% - Open — no brand owns it (2 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -5.5% search growth over the last 90 days.
8K6KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Mar, Oct · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/health-household/canker-sore-mouthwash/trend)
## **Top canker sore mouthwash search terms**
- **mouth sore mouthwash**39K/yr-6.0%14.3% conv. - **oral b mouth sore rinse**34K/yr+5.9%21.5% conv. - **canker sore mouthwash**35K/yr+3.1%16.1% conv. - **mouth sore rinse**26K/yr-8.4%10.1% conv. - **oral b mouthwash**20K/yr-11.0%5.7% conv. - **mouth rinse for mouth sores**11K/yr-22.7%10.5% conv. - **sore mouth rinse**10K/yr-18.9%13.7% conv. - **mouthwash for mouth sores**11K/yr-18.6%11.0% conv. - **mouthwash for canker sores**5K/yr-2.7%12.3% conv. - **oral rinse for mouth sores**5K/yr-4.1%11.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/canker-sore-mouthwash/search-terms)
## **Top canker sore mouthwash 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%$86K30%$172K45%$258K60%$344K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Oral-B Mouth Sore Mouthwash Special Care Oral Rinse Hydrogen Peroxide Mouthwash 16 fl oz Mouthwash Alcohol Free**Oral-B**$11.17**4.7★8,193 rev](https://www.amazon.com/dp/B07ZJZWJ7R) [2**Orajel Nonseptic Mouth Sore Rinse 16oz Soothing Mint Flavor Provides Pain Relief Promotes Healing 3-Pack**Orajel**$21.35**4.8★2,037 rev](https://www.amazon.com/dp/B09G4X1KQL) [3**Colgate Peroxyl Alcohol Free Mouthwash with 1.5% Hydrogen Peroxide Mouth Sore Rinse for Canker Sores Oral Irritations and Burns Mild Mint 16.9 fl oz Bottle**Colgate**$9.65**4.7★42,237 rev](https://www.amazon.com/dp/B00WOSEKP2) [4**Colgate Peroxyl Alcohol Free Mouthwash with 1.5% Hydrogen Peroxide Mouth Sore Rinse for Canker Sores Oral Irritations and Burns Mild Mint 8.4 fl oz Bottle**Colgate**$7.00**4.7★42,237 rev](https://www.amazon.com/dp/B004KVCV6G) [5**Canker-X Rincinol Oral Rinse Mouthwash Quick Pain Relief from Canker Sores Mouth Burns & More Benzocaine Free & Alcohol Free Mouthwash Adults & Kids 6+ Years 4.0 Fl. Oz.**Canker-X**$13.14**4.4★2,035 rev](https://www.amazon.com/dp/B0BRT4Q43P)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**GuruNanda Mouth Sore & Canker Sore Rinse Fast-Acting Relief for Oral Irritation Cuts & Gum Discomfort 1.5% Hydrogen Peroxide Oral Rinse Alcohol-Free Winter Mint 16 oz**GuruNanda**$7.98**252 rev6mo ago](https://www.amazon.com/dp/B0GFVZQFVS) [**CloSYS Hydrogen Peroxide Mouthwash 16 oz Canker Sore Mouthwash Alcohol-Free Non-Burning Cleanses and Heals Mouth Sore Rinse**CloSYS**$15.36**692 rev1y ago](https://www.amazon.com/dp/B0DSLS8VP6) [**ioRinse MR Oral Rinse Mouthwash for Dry Mouth & Mouth Sores Relief Alcohol Free Therapeutic Mouthwash for Oral Mucositis Canker Sores & Irritation Dentist Recommended Oral Rinse Mint Flavor 1 L**Iotech International**$39.72**522 rev1y ago](https://www.amazon.com/dp/B0D9V22XB3) [**Canker-X Rincinol Oral Rinse Mouthwash Quick Pain Relief from Canker Sores Mouth Burns & More Benzocaine Free & Alcohol Free Mouthwash Adults & Kids 6+ Years 4.0 Fl. Oz.**Canker-X**$13.14**2,035 rev3y ago](https://www.amazon.com/dp/B0BRT4Q43P) [**Oral-B Mouth Sore Mouthwash Special Care Oral Rinse Hydrogen Peroxide Mouthwash 16 fl oz Mouthwash Alcohol Free**Oral-B**$11.17**8,193 rev6y ago](https://www.amazon.com/dp/B07ZJZWJ7R)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**GuruNanda Mouth Sore & Canker Sore Rinse Fast-Acting Relief for Oral Irritation Cuts & Gum Discomfort 1.5% Hydrogen Peroxide Oral Rinse Alcohol-Free Winter Mint 16 oz**GuruNanda**$7.98**4.6★**▲ 230%**](https://www.amazon.com/dp/B0GFVZQFVS) [**Colgate Peroxyl Alcohol Free Mouthwash with 1.5% Hydrogen Peroxide Mouth Sore Rinse for Canker Sores Oral Irritations and Burns Mild Mint 8.4 fl oz Bottle**Colgate**$7.00**4.7★**▲ 156%**](https://www.amazon.com/dp/B004KVCV6G) [**Canker-X Rincinol Oral Rinse Mouthwash Quick Pain Relief from Canker Sores Mouth Burns & More Benzocaine Free & Alcohol Free Mouthwash Adults & Kids 6+ Years 4.0 Fl. Oz.**Canker-X**$13.14**4.4★**▲ 27%**](https://www.amazon.com/dp/B0BRT4Q43P) [**Orajel Nonseptic Mouth Sore Rinse 16oz Soothing Mint Flavor Provides Pain Relief Promotes Healing 3-Pack**Orajel**$21.35**4.8★**▲ 25%**](https://www.amazon.com/dp/B09G4X1KQL) [**Oral-B Mouth Sore Mouthwash Special Care Oral Rinse Hydrogen Peroxide Mouthwash 16 fl oz Mouthwash Alcohol Free**Oral-B**$11.17**4.7★**▲ 15%**](https://www.amazon.com/dp/B07ZJZWJ7R)
**~~View all trending →~~**
## **What buyers say about canker sore mouthwash**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**16%
*“Also, exactly as advertised and quality made”*
**Tooth Sensitivity**13%
*“It really helped to calm my severe toothache”*
**Oral Hygiene**12%
*“Great for your gums”*
**Efficiency**11%
*“Effective”*
**Value For Money**7%
*“GOOD price”*
**Advertised Vs Actual Product**5%
*“As advertised”*
**Cleansing**4%
*“It helps clean the area”*
**Taste-Overall**3%
*“On a positive note it tastes nice so theres that”*
**Ease Of Use**3%
*“Works quickly most the time”*
**Ease Of Cleaning**2%
*“The rinse is easy to use”*
### **What buyers complain about **
**Value For Money**11%
*“A bit overpriced”*
**Pain Relief-Overall**7%
*“It also does not give any pain relief”*
**Leak-Proof**7%
*“can leak if unlucky”*
**Ease Of Use**7%
*“Ineffective and very unpleasant to experience”*
**Oral Hygiene**6%
*“Nothing has helped not even a dentist”*
**Allergies**6%
*“can get allergic reactions easily”*
**Quality-Overall**4%
*“Not very good at all”*
**Sensitivity-Overall**3%
*“Not happy with the burning sensation”*
**Strength**3%
*“it could be stronger”*
**Ingredients-Overall**3%
*“both have completely different ingredients with changes”*
### **Top return reasons **
**Functionality-Overall**19%
**Leak-Proof**19%
**Advertised Vs Actual Product**19%
**Size-Overall**8%
**Value For Money**5%
**Product Condition**4%
**Ingredients-Overall**3%
**Defective Material/Parts**2%
**Oral Hygiene**2%
**Tooth Sensitivity**1%
## **Common questions**
- **Is canker sore mouthwash profitable to sell on Amazon United States?**
- The niche generates $574K/yr across 10 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -5.5%. Flapen's verdict: Skip it (49/100).
- **How competitive is the canker sore mouthwash niche?**
- 8 brands and 59 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 89% of demand.
- **What do buyers complain about in canker sore mouthwash?**
- Top complaints mined from reviews: Value For Money, Pain Relief-Overall, Leak-Proof. The return rate is 0.4%.
- **When does demand for canker sore mouthwash peak?**
- Demand peaks in Feb–Mar–Oct; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the canker sore mouthwash niche?**
- Listings span $6.43–$39.72; the average listing price is $14.66 (sweet spot $15–$100). The average incumbent carries 10,346 reviews — the moat a new listing must climb.
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