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Mouthwash

Fail

Prices span $1.45–$10.06, mostly outside the sweet spot, so Mouthwash is a Fail.

Flapen Score
49
49 / 100
Top 45% of 2,035 Health & Personal Care niches · +1 vs the category median of 48
Market size
£1.3M/yr2.0M searches / yr
90-day growth
-5.0%search demand this quarter
Competition
56%top-5 click share · 7 brands · 95 sellers

Flapen Score

Mouthwash against its category

The dotted line is the Health & Personal Care average. Past it, Mouthwash is stronger. Inside it, weaker.

49Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Mouthwash market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Mouthwash 2.0M times last year and spent an estimated £1.3M. The top 5 brands take 94% of clicks. Flapen scores it 49 out of 100, a Fail.

01 · Demand

An estimated 21.5% of those searches ended in a purchase.

Shoppers searched for this 2.0M times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 21.5% of those searches ended in a purchase. Searches in the last 90 days moved -5.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated £1.3M a year.

Searches, last 12 months
2.0M
Growth, 90 days vs prior 90
-5.0%
Conversion, latest week
21.5%
Market size, estimated
£1.3Ma year
Peak month
March1.3× the quietest month
Top search term
mouthwash1.1M searches a year

02 · Price

A sale here is worth £3.13.

Listings sell for £3.13 on average, from £1.45 to £10.06. Amazon reports units sold in ranges. This niche sold 400K to 500K a year. The average listing sells 15,000 to 20,000 of them. At £3.13 that is £47K to £63K a year per listing.

Average price
£3.13under the $15 to $100 sweet spot
Price range
£1.45–£10.06
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
400K–500K
Units per listing a year
15,000–20,000
Revenue per listing a year
£47K–£63K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

74% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #22 within Dental Care. It carries 5,767 reviews at 4.58 stars, so a new listing needs social proof before a better product.

Sponsored listings
74%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#22in Dental Care
Average rating
4.58 starsAmazon United Kingdom average 4.36 stars
Average reviews
5,767per listing
Listings tracked
19

04 · Newcomers

1 of last year's 1 launches cleared the first-year sales bar.

1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 55 months on average, so the names here are settling in.

Launched, last 12 months
1
Successful launches
1Amazon's first-year sales bar
Average brand age
55 months

Products

Top Mouthwash products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 24, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 56% of clicks. Leaders hold, but buyers still shop past them.

£0£133K£267K£400K£534K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

7 falling

Sellers

95

Est. top-5 brand share

94%

Top 20: 100%

Est. top-5 click share

56%

Top 20: 100%

Open market

3%

  • Listerine65%
  • Corsodyl9%
  • Colgate9%
  • The Breath Co.7%
  • HISMILE4%
  • Dentyl3%
  • Open — no brand owns it (1 brand, 3%)

Demand

Mouthwash search demand

Weekly searches over the year, seasonality beneath. Pick a range.

45K35KSpike '24Prime Day '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top Mouthwash search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • mouthwash1.1M/yr
  • listerine mouthwash325K/yr
  • mouth wash168K/yr
  • listerine102K/yr
  • oral b mouthwash31K/yr
  • alcohol free mouthwash34K/yr
  • mouthwash alcohol free30K/yr
  • mouthwash listerine26K/yr
  • mouthwashes40K/yr
  • listerine total care mouthwash18K/yr

Reviews and returns

What reviews say buyers love and hate about Mouthwash

We read the reviews and the return reasons for every product selling here.

23%of positive reviews mention “Oral Hygiene”
22%of negative reviews mention “Taste-Overall”
0.1%of orders come back
“Strange taste”
A buyer, on “Taste-Overall”22% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

20 topics

NegativePositive

FAQ

Common Mouthwash questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data