Hydrofloss
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Avg price
Great$71.97avg listing price — sweet spot $15–$100
Conversion
Great7.5%search→purchase rate — share of searches ending in a sale
Price range
Good$20.43–$129.84cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.1%return rate — above 5% kills the launch gate
Quality gap
Good4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$179K$179K/yr · 33K searches
Growth
Bad-1.8%90-day search growth — must beat 0% to launch
Review moat
Bad27,493.11avg incumbent reviews — the moat a new listing must climb
Competition
Bad87%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Is hydrofloss profitable on Amazon?
According to Flapen's Amazon United States niche tracking, hydrofloss is a $179K/yr Amazon United States market (33K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
hydrofloss market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 2K–3K
- avg 250–500/product
- Revenue / yr
- $144K–$180K
- units × avg price
- Conversion rate
- 7.5%
- Avg BSR
- #72
- Page quality
- 0%
- Prime
- 89%
- Sponsored
- 89%
- Out of stock
- 0.0%
- Avg brand age
- 47 months
- Avg seller age
- 174 days
Competition: brands, sellers & click share
The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 flat
Sellers
31
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
87%
Top 20: 100%
Open market
0%
- hydrofloss66%
- Waterpik15%
- COSLUS12%
- Onlyone4%
- Hydro Floss Solutions3%
hydrofloss demand & seasonality
Weekly Amazon search volume, last 103 weeks — -1.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top hydrofloss search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- hydrofloss12K/yr
- hydro floss water flosser5K/yr
- hydrofloss water flosser6K/yr
- hydro floss5K/yr
- hydro flosser4K/yr
Top hydrofloss 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.
All 9 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Hydro Floss New Generation Oral Irrigator Bundle with Sulcus Tips
hydrofloss$116.744.4★375 rev
Hydro Floss Oral Irrigator Plus Book Bundled Package - 2 Items
hydrofloss$116.504.4★96 rev
COSLUS ADA Accepted Water Dental Flosser Teeth Pick C20: Portable Cordless Oral Irrigator 300ML Rechargeable Travel Irrigation Cleaner IPX7 Waterproof Electric Flossing Machine Professional Set Black
COSLUS$30.194.4★51,521 rev
Waterpik Aquarius Water Flosser For Teeth Cleaning Gums Braces Dental Care Electric Power With 10 Settings 7 Tips For Multiple Users And Needs ADA Accepted White WP-660 Packaging May Vary
Waterpik$64.124.6★156,736 rev
Waterpik Promax Water Flosser with SmartAdvance Mode for Daily Gum Health and Cleaning Teeth Braces Implants ADA Accepted Small Quiet Design Electric Flosser with 10 Settings 5 Tips WF-23
Waterpik$129.844.7★358 rev
Newest
by launch date
Hydro Floss Oral Irrigator with 3 oz Irrigator Concentrate Solution
Hydro Floss Solutions$104.840 rev
Waterpik Promax Water Flosser with SmartAdvance Mode for Daily Gum Health and Cleaning Teeth Braces Implants ADA Accepted Small Quiet Design Electric Flosser with 10 Settings 5 Tips WF-23
Waterpik$129.84358 rev
Onlyone Rechargeable Cordless Water Flosser with Adjustable Water Pressure for Daily Oral Care Power Dental Flosser for Home and Travel Use Portable Oral Irrigator for Sensitive Gums and Braces Care
Onlyone$22.867,891 rev
Waterpik Cordless Pulse 3100 Rechargeable Portable Water Flosser for Teeth Gums Braces Care and Travel with 2 Flossing Tips Waterproof for Shower Use ADA Accepted WF-20 White Amazon Exclusive
Waterpik$42.2113,957 rev
COSLUS C30 Water Dental Flosser Pick for Teeth: 4 Modes Cordless Portable 300ML Larger Tank Water Teeth Cleaner IPX7 Waterproof Flossing Cleaning Picks for Home Travel Black
COSLUS$20.4316,504 rev
Trending
90-day click momentumHydro Floss Oral Irrigator with 3 oz Irrigator Concentrate Solution
Hydro Floss Solutions$104.840.0★
Waterpik Promax Water Flosser with SmartAdvance Mode for Daily Gum Health and Cleaning Teeth Braces Implants ADA Accepted Small Quiet Design Electric Flosser with 10 Settings 5 Tips WF-23
Waterpik$129.844.7★
Hydro Floss Oral Irrigator Plus Book Bundled Package - 2 Items
hydrofloss$116.504.4★
Hydro Floss New Generation Oral Irrigator Bundle with Sulcus Tips
hydrofloss$116.744.4★
Waterpik Cordless Pulse 3100 Rechargeable Portable Water Flosser for Teeth Gums Braces Care and Travel with 2 Flossing Tips Waterproof for Shower Use ADA Accepted WF-20 White Amazon Exclusive
Waterpik$42.214.3★
What reviews say buyers love and hate about hydrofloss
What buyers praise and complain about, mined from review topics.What buyers love
“Great seeds and quality”
“easy to hold”
“Fair price”
“it does the job well”
“JUST WHAT I NEEDED”
“Cleans well”
“Charge lasts forever”
“Battery lasts long enough”
“Cleans Great”
“The attachments are sturdy and well made”
What buyers complain about
“Broke immediately”
“Will not charge”
“Leaks water”
“Bad quality”
“Too small”
“Hard to hold”
“Doesnt Work”
“Short battery life”
“not enough water”
“difficult to clean”
Top return reasons
Common hydrofloss questions
- Is hydrofloss profitable to sell on Amazon United States?
- The niche generates $179K/yr across 9 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -1.8%. Flapen's verdict: Skip it (39/100).
- How competitive is the hydrofloss niche?
- 5 brands and 31 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in hydrofloss?
- Top complaints mined from reviews: Durability, Charging, Leak-Proof. The return rate is 2.1%.
- When does demand for hydrofloss peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the hydrofloss niche?
- Listings span $20.43–$129.84; the average listing price is $71.97 (sweet spot $15–$100). The average incumbent carries 27,493 reviews — the moat a new listing must climb.