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20-Second Brush.
Oral health is linked to overall health — take control with Feno
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4 Easy Payments With Affirm
Free + Fast Shipping
Money Back Guarantee
Featured In
"A toothbrush with AI, a camera, and a subscription.I tried out the Feno toothbrush: a full-mouth, U-shaped toothbrush. It brushes your entire mouth in 20 seconds as opposed to the typical 2-minute brush time recommended for standard toothbrushes. The Feno toothbrush seemingly did a pretty thorough job of brushing my teeth and was quick and comfortable." - Owen Grove
"The big appeal is the time saved, and having grown used to brushing my teeth for two minutes at a time, a brushing experience that ends in 20 seconds is really strange and quite delightful. The feeling of cleanliness is undeniable, Feno says that its internal pilot studies yielded 99% plaque removal in three days, while achieving that coveted 75% reduction in brushing time." - Stephen Warwick
"How many of us really put in the 2-plus minutes of brushing that dentists recommend? And are we really putting brush to tooth as effectively as we should? Feno cuts the time to just 20 seconds, and its Smartbrush does the work for you." - Carly Quellman
The brush has cameras built into it that allow you to take photos and submit them in the app to get analyzed for oral health issues.
The Feno Smartbrush, in addition to being a cleaning tool, analyzes oral health markers to detect broader systemic risks. Its app allows users to track brushing habits, provides an oral health report and gives users the ability to chat with a oral health coach.
The average toothbrush has 2,500 bristles, while the Feno Smartbrush has an average of 18,000. Also, the average brush cycle takes 120 seconds while the Feno Smartbrush takes 20 because each tooth is being brushed simultaneously due to the design. - Jon Marashi, DDS
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Systemic Benefits of
Oral Health
Health Correlation Insights
Uncover links between your oral health and risks like heart disease or diabetes.
Historical Trend Tracking
Spot early signs of inflammation or decay before symptoms appear.
Personalized Tips
Get AI-powered tips tailored to your unique oral health needs.
Early Warning Detection
Catch potential issues early and avoid costly treatments.
Protection & Integration
Enjoy purchase protection and seamless support from home to clinic.
Revolutionize Your Routine in 20 Seconds
Built-in oral scanner for remote analysis, hygiene-focused design, and a comfort-fit mouthpiece—upgrading both your smile and health.
Instant, magnetic wireless charging
7-day battery for travel and portability
Syncs data to the Feno Plus app for personalized tracking
Revolutionize Your Routine in 20 Seconds
Get a superior clean with Feno Foam. Our xylitol formula whitens and fights cavities, while the rich foam reaches every corner, promoting oral health and reducing risks of major diseases.
Xylitol strengthens enamel
Wild mint for lasting freshness
Foaming action cleans deeply
Revolutionary Brushing for Next-Level Oral Health
Buy Now20-Second Full Mouth Brushing
Complete oral care in 20 seconds, saving you 21 hours per year while delivering optimal results.
Simple Personalized Mouthpiece
Optimized for teeth coverage, gumline stimulation, and plaque removal.
18,000 Precision Bristles
Delivering 250 strokes per 20 seconds, ensuring every brush is efficient.
Free Health Insights
Connect oral health to overall health with complimentary access to insights and professionals.
With electric toothbrush
Even when using the most advanced electric toothbrushes, people often miss areas of the mouth or brush inconsistently and not long enough — all of which adds up to plaque build-up.
With Feno Smartbrush™
The Feno Smartbrush significantly reduces the likelihood of human error, achieving near-complete plaque removal and a consistent full-mouth clean in just 20 seconds.
Oral Health: Beyond Smiles, It’s Overall Health.
What the Professionals Say
Experts recommend the TrueFit Mouthpiece for its precision, comfort, and personalized fit.
- MRMadeline R.1 hour agoRated 5 out of 5 starsIt’s Awesome!!
I absolutely love how easy it is to use and that it cleans every single part of my teeth!!
- DTDanh T.Verified Buyer18 hours agoRated 5 out of 5 starsGreat product!
A Practical, Long-Term Review of the Feno Toothbrush (After 1+ Year)
I rarely review products unless I'm convinced of their functional use—without all the marketing hype—or after I've tested them for a long time to judge their efficacy and company support. Feno checks all those boxes. I bought this product a little over a year ago.
What first drew me in was the brush's ability to clean your teeth in a very short amount of time. I know I personally need that feature, as I have a bad habit of neglecting to brush my teeth and just falling asleep.
My Philosophy and Testing Method
Before I could reach a conclusion, I had to be realistic about the product's function. We should agree that a toothbrush and toothpaste are fundamentally designed for stain management, not permanent stain prevention. We also have to accept that teeth can yellow internally as we age, which is inevitable.
With that in mind, I tested the brush's efficacy while following the instructional videos. My test variables (consumption habits) include:
Coffee
Ice Cream
A paleo-adaptive diet
Regular flossing
My Results After One Year
After a year of use and getting my usual bi-annual (twice-yearly) teeth cleanings, my goal was to see if my teeth slowed in their staining while using the brush.
Here's what I found: Under various lighting conditions (to ensure my eyes weren't biased), my teeth looked great right after my professional cleaning. Over time, given my consumption habits, my teeth did inevitably begin to…
- SPShawn P.Verified Reviewer19 hours agoRated 5 out of 5 starsGreat stuff
Really makes it easier to stay on top of a regular brushing habit, and my mouth feels cleaner than a standard brushing.
- WEWaseem E.Verified Reviewer2 days agoRated 5 out of 5 starsConvenient and works very well.
Very happy with this purchase. It’s convenient and works really well.
- DWDarric W.5 days agoRated 5 out of 5 starsThis Brush is Awsome
I’ve been using Feno for a while now, and honestly, it’s one of those rare finds that just gets it right. The design is clean and intentional, but it’s not trying too hard—it feels like it was made for people who actually care about quality without needing to show off.
What I appreciate most is how it fits into my day without friction. It’s reliable, sharp, and quietly impressive. You can tell there’s thought behind every detail. It’s not loud, but it leaves a mark.
If you’re into things that are well-made, purposeful, and don’t collapse under trend pressure, Feno’s worth checking out. It’s become part of my daily rhythm, and I wouldn’t go back.
How is the Feno Smartbrush different from other electric toothbrushes?
The Feno Smartbrush is a radical step forward for oral health. The average toothbrush has 2,500 bristles; the Feno Smartbrush has an average of 18,000. The average toothbrush brushes each tooth one at a time; the Feno Smartbrush brushes all teeth simultaneously. The average brush cycle takes 120 seconds; the Feno Smartbrush takes 20. The Feno Smartbrush is also the first brush that takes deep scans of your teeth and gums to provide ongoing insights into the condition of your oral health. An astonishing 90% of individuals suffer from some form of gum disease, an oversight we aim to correct with the Feno Smartbrush, designed as the product to bridge oral health and overall health.
How does the Feno app provide personalized feedback and advice on oral care?
The Feno Smartbrush is a radical step forward for oral health. The average toothbrush has 2,500 bristles; the Feno Smartbrush has an average of 18,000. The average toothbrush brushes each tooth one at a time; the Feno Smartbrush brushes all teeth simultaneously. The average brush cycle takes 120 seconds; the Feno Smartbrush takes 20. The Feno Smartbrush is also the first brush that takes deep scans of your teeth and gums to provide ongoing insights into the condition of your oral health. An astonishing 90% of individuals suffer from some form of gum disease, an oversight we aim to correct with the Feno Smartbrush, designed as the product to bridge oral health and overall health.
Is there privacy built-in with the scanner?
The Feno Smartbrush is a radical step forward for oral health. The average toothbrush has 2,500 bristles; the Feno Smartbrush has an average of 18,000. The average toothbrush brushes each tooth one at a time; the Feno Smartbrush brushes all teeth simultaneously. The average brush cycle takes 120 seconds; the Feno Smartbrush takes 20. The Feno Smartbrush is also the first brush that takes deep scans of your teeth and gums to provide ongoing insights into the condition of your oral health. An astonishing 90% of individuals suffer from some form of gum disease, an oversight we aim to correct with the Feno Smartbrush, designed as the product to bridge oral health and overall health.
How do I know the mouthpiece size that is right for me?
The Feno Smartbrush is a radical step forward for oral health. The average toothbrush has 2,500 bristles; the Feno Smartbrush has an average of 18,000. The average toothbrush brushes each tooth one at a time; the Feno Smartbrush brushes all teeth simultaneously. The average brush cycle takes 120 seconds; the Feno Smartbrush takes 20. The Feno Smartbrush is also the first brush that takes deep scans of your teeth and gums to provide ongoing insights into the condition of your oral health. An astonishing 90% of individuals suffer from some form of gum disease, an oversight we aim to correct with the Feno Smartbrush, designed as the product to bridge oral health and overall health.
Product Comparison
Buy NowDetails
20 second full-mouth brush
Health Insights App
At-home oral scanner
Personalized mouthpiece
Connected Health Coach
Full-mouth Brush
Electric Brush
Hand Brush