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Exposing the mouth and heart health connection

Almost half of people over 30 face gum disease, which can up your chances of serious heart problems. Here’s the scoop on why and how you can fight back.

Oral bacteria can trigger widespread inflammation

Almost half of people over 30 face gum disease, which can up your chances of serious heart problems. Here’s the scoop on why and how you can fight back.

Source: Harvard Health

Cavities can contribute to arterial plaque build-up

Cavity-causing bacteria can enter the bloodstream and contribute to plaque formation and atherosclerosis — which increases your risk of stroke, heart attack, and heart disease.

Source: University of Pennsylvania
Source: Harvard Health

“People with gum disease (also known as periodontal disease) have two to three times the risk of having a heart attack, stroke, or other serious cardiovascular event.”

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Introducing the world’s first smartbrush designed to support heart (and whole-body) health

The mouth body connection

Oral Health Meets Systemic Health: Feno understands the link between oral health and whole body health, providing oral health insights that could signal systemic issues.

TrueFit Mouthpiece

Right-sized for you: Here’s how Feno uses AI to outfit you with the right TrueFit Mouthpiece

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Built In Oral Health Scanner

Feno’s Smarthandle features a built-in high-definition oral scanner that monitors your mouth for potential signs of gum disease and decay to get in front of them early and fast.

Feno Plus

Actionable Oral Health Reporting: Dentist reviewed and AI-powered

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Image of an iphone with feno mobile app on it
4.9
Rated 4.9 out of 5 stars
Based on 145 reviews
99%would recommend these products
Total 5 star reviews: 134 Total 4 star reviews: 9 Total 3 star reviews: 0 Total 2 star reviews: 2 Total 1 star reviews: 0
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145 reviews
  • DW
    Dawson W.
    11 hours ago
    Rated 5 out of 5 stars
    Service person

    They provided excellent customer service — quick responses, clear communication, and genuinely helpful throughout the entire process. They made the refund experience smooth and stress-free. Highly recommend!

  • EB Profile picture for EriC B.google logo
    EriC B.
    Verified Reviewer
    2 days ago
    Rated 5 out of 5 stars
    Great customer service

    I recently bought my Feno and have been very impressed with the level of customer service, Julius specifically, has been very helpful with any questions that I had and also very accommodating in getting me a mouthpiece that fits my mouth perfectly. Every response is always very prompt and informative... Not to mention, now that I have a great fitting mouthpiece I enjoy the device all the much more...

  • AS Profile picture for Aidan S.google logo
    Aidan S.
    Verified Reviewer
    1 week ago
    Rated 5 out of 5 stars
    The way to optimize your life

    If you're calculating pure dollar-for-dollar ROI, this probably isn’t the product that “pays for itself”—and that’s fine. Not everything needs to be a financial decision. People don’t buy a Ferrari because it’s the smartest money move; they buy it because it performs better and is simply more fun to use.

    I’ve always hated brushing my teeth—strange thing to admit, but true. This is the first product that’s made me actually enjoy it. It turns the whole process into something almost gamified: a quick, engaging, 30-second routine that feels more like a small win than a chore. Instead of dreading a couple minutes of brushing, I’m tracking progress and getting through something I need to do in a way that actually feels good.

    I would recommend this for the super busy adult or the super ADHD child. I'm a huge fan.

  • KB Profile picture for Kyler B.
    Kyler B.
    Verified Reviewer
    1 week ago
    Rated 5 out of 5 stars
    Exceeds Expectations!

    I’ve always been really particular about my teeth. I’ve invested in electric toothbrushes, dental tools, and anything that keeps my smile and gums healthy. Even just a few days into using the FENO toothbrush, I can already tell the cleaning is on another level. It’s super thorough and way more intentional along the gumline, which is usually where I struggle with sensitivity. This brush actually feels like it gets every surface, and that gives me a lot of confidence that my whole mouth is being taken care of.

    Even with the best electric toothbrushes, you never really know if you’re catching everything, especially around the gums. With this one, I feel like I finally am. I also like the scanning feature—haven’t used it much yet, but I’m sure I’ll get into it.

    The toothpaste tastes great and works really well. Just a note for anyone who cares about fluoride: FENO’s paste doesn’t include it, so if that’s important to you, you may want to supplement with a fluoride option as well.

    Overall, I’m impressed. This brush feels intentional, effective, and honestly kind of next-level for gum and tooth health.

  • AW
    Annie W.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    My teeth have never felt cleaner

    Yes, when you first try the Feno, it is awkward and cumbersome but then once you get the hang of it, you can’t believe you’ve ever lived a day without it. My teeth feel and look cleaner and it makes me feel confident that I spent enough attention to them during a brushing session. Feno has had its kinks, but luckily the customer service is very easy to contact and they are very helpful.

20 Seconds for the

Cleanest Full Mouth Brush Ever

In just 24 hours, plaque and bacteria accumulate on the teeth and gumline, increasing the risk of cavities and gum issues.

Purple teeth visualization of dental plaque & bacteria in bright pink and blue colors on teeth, set against a black background

The Founder’s Edition Bundle:

Your Complete Oral Care Kit

$299 Pre Launch, Normally $399

3 Tubes Feno Foam

Xylitol-powered foaming toothpaste

Snap Charger

Wireless charging: Instant and easy.

Feno Smartbrush

Includes Oral Scanner & Mouthpiece

1 Month Feno Plus

Oral Health Insights & On-Demand Oral Health Coaches

FAQ

Does the Smartbrush need any user technique to work effectively?

The Feno® Smartbrush is designed to be user-friendly and requires minimal technique for effective use. While the advanced technology, including the TrueFitTM Mouthpiece and ArcFlow TechTM, ensures comprehensive cleaning, users should still follow a simple technique for optimal results. While the Smartbrush is on, it is recommended to move the TrueFitTM Mouthpiece in a slow circular motion. This motion helps to achieve optimal bristle contact with all areas of the teeth and gums, enhancing the brushing results.

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 health?

The Feno app revolutionizes personalized oral care by leveraging advanced technology and professional expertise. Embedded in the Smarthandle of the Smartbrush is a scanner that captures images of your mouth, including critical areas like the gumline, tooth integrity, and signs of inflammation. Once you complete a scan, the data is automatically synchronized with your profile on the Feno app. This seamless integration ensures that your oral health information is consistently up-to-date and readily accessible. The app then utilizes a dual approach for analysis: a network of licensed dentists and an evolving machine learning model. These dentists review and annotate your scans, providing valuable insights into your oral health status. Their annotations not only offer you personalized feedback and advice but also contribute to training our machine learning model. This model is designed to recognize patterns and deliver rapid, routine insights, enhancing the accuracy and effectiveness of the feedback you receive over time. Additionally, the app's chat feature allows you to directly communicate with a dentist from our network. This functionality enables you to discuss your scan results, ask questions, and receive expert advice, all within the app. You can easily share your scan data and reports with your dentist during these consultations, making the discussions more informed and productive.

Is there privacy built-in with the scanner?

Yes, the Feno Smartbrush includes multiple built-in privacy features for the scanner. The device is equipped with a secondary privacy chip, ensuring that all operations related to the scanner are securely handled. This chip prevents remote access to the scanner, enhancing the security and privacy of the device. Additionally, all data collected by the scanner is encrypted, providing an added layer of security to protect users' personal information.

Product Comparison

See how Feno Outshines the rest

10 second full-mouth brush

Saliva scan

At-home oral scanner

Personalized TTF mouthpiece

Personalized dental advice

Full-mouth Brush

Electric toothbrush with a sleek white design, compact charging base, & a blue-bristled brush head

Electric Brush

Traditional blue and white manual toothbrush with a simple, straight handle and bristles designed for basic teeth cleaning

Hand Brush