Skip to content
51

Kids Mouthwash

Worth a look

Shows low returns (0.1%), but brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list.

Market size 93Growth 20Conversion 98Competition 52Returns 99Price range 41Avg price 27Brand share 6Review moat 23Quality gap 17

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Incredible17.2%

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

Market size

Great$1.9M

$1.9M/yr · 1.2M searches

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Price range

Okay$3.98–$22.66

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

Avg price

Okay$9.29

avg listing price — sweet spot $15–$100

Review moat

Bad7,230.95

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-10.9%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Brand share

Bad98%

top-5 brand share — brand-locked demand

Is kids mouthwash profitable on Amazon?

According to Flapen's Amazon United States niche tracking, kids mouthwash is a $1.9M/yr Amazon United States market (1.2M searches/yr). The top 5 brands hold 98% of demand. Verdict: Worth a look — 51/100.

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

kids mouthwash market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.
Units sold / yr
200K–250K
avg 6,000–8,000/product
Revenue / yr
$1.9M–$2.3M
units × avg price
Conversion rate
17.2%
Avg BSR
#73
Page quality
0%
Prime
100%
Sponsored
53%
Out of stock
0.0%
Avg brand age
58 months
Avg seller age
148 days

Competition: brands, sellers & click share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 falling

Sellers

57

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

54%

Top 20: 100%

Open market

0%

  • ACT54%
  • TheraBreath19%
  • Listerine16%
  • FIREFLY5%
  • Amazon Basics4%
  • Tom's of Maine2%

kids mouthwash demand & seasonality

Weekly Amazon search volume, last 104 weeks — -10.9% search growth over the last 90 days.
25K15KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top kids mouthwash search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.
  • kids mouthwash540K/yr
  • act kids mouthwash91K/yr
  • mouthwash kids68K/yr
  • kids mouth wash60K/yr
  • therabreath mouthwash kids51K/yr
  • mouthwash for kids48K/yr
  • kid mouthwash43K/yr
  • act mouthwash kids41K/yr
  • therabreath kids30K/yr
  • toddler mouthwash26K/yr
All search terms

Top kids mouthwash products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%$96K10%$191K15%$287K20%$382K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

What reviews say buyers love and hate about kids mouthwash

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

What buyers love

Value For Money11%

“Great buy for the money”

Taste-Overall10%

“It tastes like a treat”

Ease Of Use10%

“easy to pour”

Quality-Overall8%

“A Great Buy on a Quality Item for Kidsand/or Adults”

Flavor8%

“My son loves the strawberry so I was happy to find this flavor instead of bubblegum”

Oral Hygiene6%

“Helps with kids teeth”

Ease Of Cleaning6%

“His mouth feels clean”

Breathability4%

“this helped my kids breath smell fresh”

Cleansing3%

“still cleans pretty well”

Smell3%

“Light smell”

What buyers complain about

Taste-Overall12%

“tastes weird”

Value For Money12%

“Value for money is poor”

Flavor9%

“Didn't like the Flavor”

Ease Of Use4%

“hard to open”

Breathability4%

“Not sure if its working for her stinky breath”

Ingredients-Overall4%

“Contains sodium benzoate can change into a carcinogen”

Oral Hygiene3%

“I have struggled with dental hygiene all my life because of sensory issues and hating mint and cinnamon flavor”

Alcohol Content3%

“It doesnt have that harsh alcohol feel”

Allergies2%

“I was using it for years because Im allergic to mint”

Contamination2%

“I just wish they had less chemicals that are pollutants”

Top return reasons

Leak-Proof22%
Flavor17%
Advertised Vs Actual Product14%
Taste-Overall13%
Value For Money4%
Smell4%
Ingredients-Overall4%
Size-Overall3%
Color3%
Motor Power2%

Common kids mouthwash questions

Is kids mouthwash profitable to sell on Amazon United States?
The niche generates $1.9M/yr across 19 tracked products. 6 of 6 products launched in the last 360 days are still selling. 90-day search growth is -10.9%. Flapen's verdict: Worth a look (51/100).
How competitive is the kids mouthwash niche?
6 brands and 57 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 98% of demand.
What do buyers complain about in kids mouthwash?
Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.1%.
When does demand for kids mouthwash peak?
Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the kids mouthwash niche?
Listings span $3.98–$22.66; the average listing price is $9.29 (sweet spot $15–$100). The average incumbent carries 7,231 reviews — the moat a new listing must climb.