Is hydrogen peroxide mouthwash profitable to sell on Amazon United States?

The niche generates $679K/yr across 30 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +11.6%. Flapen's verdict: Worth a look (56/100).

How competitive is the hydrogen peroxide mouthwash niche?

13 brands and 101 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 83% of demand.

What do buyers complain about in hydrogen peroxide mouthwash?

Top complaints mined from reviews: Value For Money, Taste-Overall, Advertised Vs Actual Product. The return rate is 0.2%.

What does it cost to enter the hydrogen peroxide mouthwash niche?

Listings span $3.51–$29.09; the average listing price is $12.96 (sweet spot $15–$100). The average incumbent carries 10,609 reviews — the moat a new listing must climb.

Hydrogen Peroxide Mouthwash

Worth a look

Shows low returns (0.2%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Conversion

Great11.6%

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

Market size

Good$679K

$679K/yr · 450K searches

Avg price

Good$12.96

avg listing price — sweet spot $15–$100

Price range

Good$3.51–$29.09

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

Competition

Good54%

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

Growth

Okay+11.6%

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

Brand share

Okay83%

top-5 brand share — brands hold most of the demand

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad10,609.23

avg incumbent reviews — the moat a new listing must climb

Is hydrogen peroxide mouthwash profitable on Amazon?

According to Flapen's Amazon United States niche tracking, hydrogen peroxide mouthwash is a $679K/yr Amazon United States market (450K searches/yr). The top 5 brands hold 83% of demand. Verdict: Worth a look — 56/100.

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

hydrogen peroxide mouthwash market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 50K–60K; avg 2,000–2,500/product
Revenue / yr: $648K–$778K; units × avg price
Conversion rate: 11.6%
Avg BSR: #100
Page quality: 0%
Prime: 97%
Sponsored: 53%
Out of stock: 0.0%
Avg brand age: 77 months
Avg seller age: 138 days

Competition: brands, sellers & click share

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

Brands

13 rising

Sellers

101

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

54%

Top 20: 90%

Open market

13%

Colgate55%
HERITAGE STORE11%
PHS Brands6%
Crest6%
Amazon Basics5%
Oral-B4%
Open — no brand owns it (7 brands, 13%)

hydrogen peroxide mouthwash demand & seasonality

Weekly Amazon search volume, last 15 weeks — +11.6% search growth over the last 90 days.

Open Trend

Top hydrogen peroxide mouthwash search terms shoppers use

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

hydrogen peroxide mouthwash109K/yr +21.7%8.6% conv.
colgate mouthwash91K/yr +1.8%8.2% conv.
peroxide mouthwash84K/yr +17.3%10.9% conv.
colgate optic white mouthwash31K/yr +13.1%16.2% conv.
colgate total mouthwash26K/yr -9.6%10.5% conv.
optic white mouthwash13K/yr +13.3%16.8% conv.
mouthwash colgate11K/yr -0.9%9.1% conv.
hydrogen peroxide oral rinse8K/yr +34.1%7.5% conv.
hydrogen peroxide mouth rinse8K/yr +36.9%9.8% conv.
colgate whitening mouthwash9K/yr +12.4%13.1% conv.

All search terms

Top hydrogen peroxide 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Colgate Optic White Advanced Teeth Whitening Mouthwash 3 Pack 2% Hydrogen Peroxide Alcohol-Free and Enamel Safe ICY Fresh Mint 32 Oz

Colgate$16.544.6★6,957 rev

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$9.654.7★42,237 rev

Colgate Total Alcohol Free Mouthwash Peppermint for Bad Breath Helps Prevent Gingivitis and Plaque 3 Pack 33.8 Oz Each

Colgate$16.564.7★11,569 rev

Heritage Store Hydrogen Peroxide Mouthwash - Daily Oral Care - Eucalyptus and Fresh Mint Mouth Wash - Gentle Bubbling Action for Clean Healthy Gums and a Fresh Mouth Sweetened with Xylitol 16oz

HERITAGE STORE$10.844.6★786 rev

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$7.004.7★42,237 rev

Newest

by launch date

Hismile iD Stain Whitening Mouthwash Gunk Removing Mouthwash for Fresh Breath Hydrogen Peroxide Mouthwash to Promote Whiter Teeth Peroxide Rinse with Essential Oils 237ml

HISMILE$19.192,733 rev

6mo ago

CloSYS Hydrogen Peroxide Mouthwash 16 oz Canker Sore Mouthwash Alcohol-Free Non-Burning Cleanses and Heals Mouth Sore Rinse

CloSYS$15.36692 rev

1y ago

Sensodyne Pronamel Intensive Enamel Repair Alcohol-Free Mouthwash to Help Actively Repair Enamel and Protect Against Cavities Extra Fresh 16.9 fl oz (3 Pack)

SENSODYNE PRONAMEL$17.883,739 rev

2y ago

CloSYS Healthy Gums Mouthwash 32 Fl Oz Antiplaque Anti-Gingivitis Mouthwash Non-Burning Non-Irritating

CloSYS$13.664,858 rev

3y ago

Colgate Peroxyl Antiseptic Mouth Sore Rinse Alcohol Free 1.5% Hydrogen Peroxide Mild Mint 8.45 Ounce (Pack of 6)

Colgate$29.0942,237 rev

3y ago

What reviews say buyers love and hate about hydrogen peroxide mouthwash

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

What buyers love

Quality-Overall15%

“Overall, the product is good quality and arrived in good condition”

Value For Money12%

“Great Deal”

Advertised Vs Actual Product9%

“As advertised”

Oral Hygiene9%

“keeps mouth clean”

Efficiency7%

“Product does work”

Tooth Brightening7%

“Keeps my teeth white”

Cleansing6%

“Clean and fresh”

Breathability6%

“Keeps breath fresh”

Tooth Sensitivity3%

“Great for sensitive teeth”

Ease Of Cleaning3%

“Super clean”

What buyers complain about

Value For Money14%

“Its expensive”

Taste-Overall9%

“Disgusting taste”

Advertised Vs Actual Product7%

“deceptive advertising”

Size-Overall6%

“So small”

Color6%

“Not white”

Leak-Proof6%

“it was leaking”

Stain Resistance5%

“Stains”

Dilute/Watery3%

“Water didnt help”

Functionality-Overall3%

“Didnt work”

Ingredients-Overall3%

“other ingredients that my body does not agree with”

Top return reasons

Leak-Proof26%

Advertised Vs Actual Product17%

Size-Overall13%

Functionality-Overall8%

Value For Money6%

Taste-Overall6%