waterpik
Worth a lookShows a $82.0M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size
Incredible$82.0M$82.0M/yr · 22.8M searches
Avg price
Incredible$42.74avg listing price — sweet spot $15–$100
Conversion
Great8.4%search→purchase rate — share of searches ending in a sale
Price range
Good$9.86–$129.84cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Returns
Good2.4%return rate — above 5% kills the launch gate
Competition
Good54%top-5 click share — leaders hold, buyers still browse
Growth
Bad-4.4%90-day search growth — must beat 0% to launch
Brand share
Bad94%top-5 brand share — brand-locked demand
Review moat
Bad31,063.5avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, waterpik is a $82.0M/yr Amazon United States market (22.8M searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Dec. Verdict: Worth a look — 58/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
waterpik market data
- Units sold / yr
- 1.0M–1.0M
- avg 60,000–80,000/product
- Revenue / yr
- $42.7M–$42.7M
- units × avg price
- Conversion rate
- 8.4%
- Avg BSR
- #13
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 91%
- Out of stock
- 0.0%
- Avg brand age
- 40 months
- Avg seller age
- 150 days
Competition & brand share
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.Brands
9 falling
Sellers
43
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
54%
Top 20: 98%
Open market
4%
- Waterpik41%
- COSLUS40%
- Onlyone6%
- Bitvae5%
- houscly2%
- Leominor2%
- Open — no brand owns it (3 brands, 4%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -4.4% search growth over the last 90 days.Peak months: Dec · busiest ÷ quietest = 1.7×
Top waterpik search terms
- water flosser5.5M/yr
- waterpik water flosser2.7M/yr
- waterpik5.8M/yr
- water pick1.9M/yr
- water flossers for teeth2.1M/yr
- water picks for teeth cleaning and flossing1.1M/yr
- water pik1.3M/yr
- waterpik cordless water flosser255K/yr
- water floss272K/yr
- portable water flosser251K/yr
Top waterpik 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.
All 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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 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★13,957 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
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$20.434.4★16,504 rev
Waterpik Cordless Advanced 2.0 Water Flosser For Teeth Gums Braces Dental Care With Travel Bag and 4 Tips ADA Accepted Rechargeable Portable and Waterproof White WP-580 Packaging May Vary
Waterpik$69.874.2★77,077 rev
Newest
by launch date
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
Cordless Portable Water Flosser with 300ML Tank: Rechargeable Oral Irrigator with 5 Tips for Travel Braces Care and Sensitive Gums IPX7 Waterproof Teeth Cleaning Device(Black)
Goopick$13.67227 rev
COSLUS ADA Accepted C50 Portable Water Flosser for Teeth: 4 Modes & 5 Intensity Levels Professional Electric Dental Pick for Sensitive Gums Braces & Orthodontic - Cordless for Travel Use BPA-Free
COSLUS$21.952,554 rev
COSLUS ADA Accepted C51 Portable Water Flosser for Teeth: 3 Modes & 6 Pressure Settings with Jet Mode Water Dental Pick for Orthodontic Braces Sensitive Gums Compact for Travel for Multiple Users
COSLUS$20.811,854 rev
Leominor Water Dental Flosser - 5 Modes Cordless Portable Oral Irrigator IPX7 Waterproof Rechargeable Teeth Cleaner Upgrade Datchable Tank Professional Flossing Cleaning Pick for Home Travel (Black)
Leominor$18.686,027 rev
Trending
90-day click momentumCordless Portable Water Flosser with 300ML Tank: Rechargeable Oral Irrigator with 5 Tips for Travel Braces Care and Sensitive Gums IPX7 Waterproof Teeth Cleaning Device(Black)
Goopick$13.674.2★
Leominor Water Dental Flosser - 5 Modes Cordless Portable Oral Irrigator IPX7 Waterproof Rechargeable Teeth Cleaner Upgrade Datchable Tank Professional Flossing Cleaning Pick for Home Travel (Black)
Leominor$18.684.2★
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★
COSLUS ADA Accepted C51 Portable Water Flosser for Teeth: 3 Modes & 6 Pressure Settings with Jet Mode Water Dental Pick for Orthodontic Braces Sensitive Gums Compact for Travel for Multiple Users
COSLUS$20.814.5★
Waterpik Cordless Pearl Rechargeable Portable Water Flosser for Teeth Gums Braces Care and Travel Extra Quiet 4 Flossing Tips - ADA Accepted WF-13 Black Amazon Exclusive
Waterpik$44.594.3★
What buyers say about waterpik
What buyers praise and complain about, mined from review topics.What buyers love
“EASY to use”
“Good quality device”
“Fair price”
“effectiveness of the product”
“Charge lasts forever”
“CLEANS WELL”
“As Described”
“Battery lasts a long time”
“Perfect fit”
“Gentle Cleansing”
What buyers complain about
“Broke already”
“Charging Issues”
“Cheap Quality”
“leaks constantly”
“Not a snug fit”
“Never Worked”
“Awkward to use”
“Impossible to clean”
“NOT WATER RESISTANT/PROOF”
“Battery not holding charge”
Top return reasons
Common questions
- Is waterpik profitable to sell on Amazon United States?
- The niche generates $82.0M/yr across 22 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -4.4%. Flapen's verdict: Worth a look (58/100).
- How competitive is the waterpik niche?
- 9 brands and 43 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in waterpik?
- Top complaints mined from reviews: Durability, Charging, Quality-Overall. The return rate is 2.4%.
- When does demand for waterpik peak?
- Demand peaks in Dec; the busiest month runs 1.7× the quietest.
- What does it cost to enter the waterpik niche?
- Listings span $9.86–$129.84; the average listing price is $42.74 (sweet spot $15–$100). The average incumbent carries 31,064 reviews — the moat a new listing must climb.