ray S.
Synergistic teeth brushing
In today’s world we attempt to do everything fast, this product allows just that, one is able to make the most out of their time. Additionally my mouth feels fresher and cleaner than after a dentist’s cleaning.

Feno is on a mission to transform oral health and unlock its potential to revolutionize overall systemic health. By harnessing cutting-edge technologies and proprietary formulations, Feno has developed an innovative connected smart toothbrush that provides a comprehensive and efficient oral care solution, delivering a thorough cleaning in just 20 seconds.
Feno (feno.co) has 93 customer reviews on Five Star Index, with an average rating of 4.6 out of 5.
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ray S.
In today’s world we attempt to do everything fast, this product allows just that, one is able to make the most out of their time. Additionally my mouth feels fresher and cleaner than after a dentist’s cleaning.
Tory M.
Love my Feno. Saves time and cleans everywhere. Very happy with the purchase. Expensive but worth it. Invest in your health
Zachary M.
I really love the Feno and how effective it is at cleaning your teeth. I’ve been using it about three months now and even my dentist gave me a compliment on my teeth brushing regiment on a recent visit. I highly recommend it.
Tom S.
CON EMAIL BOUNCES INSTA NOT LINKED. Took my money and no product, trying to get my money back from American Express!
Response from FenoMay 7, 2025
Hi Tom, we're truly sorry to hear about your experience. This definitely doesn’t reflect the standard we strive for at Feno. It looks like our team connected with you about a month ago and resolved the initial issue—but if you're still facing problems, we want to make it right. Please reach out to us directly at [email protected] so we can assist you right away. We're here to help.
David T.
Great experience with there product . Happy teeth happy laughing .
Response from FenoJun 16, 2025
Thanks so much for the kind words! We love hearing that your teeth are happy—and even happier knowing you're laughing too. 😊 If you ever need anything, we’re just a message away. Keep smiling!
Raafae I.
Love makes my teeth not look like the sunset 😘😘😘
Response from FenoJun 16, 2025
This might be our favorite review yet 😄 We're so glad your smile is staying bright—and definitely not sunset-colored! Thanks for the love, and keep on glowing!
Mitch H.
The product is great. My teeth and gums feel clean after using. They are responsive to any issues I might have.
Response from FenoFeb 3, 2025
Thanks so much, Mitch! We’re thrilled to hear you’re liking the Smartbrush. We always aim to be as responsive as possible, so if you ever need anything, just reach out. Appreciate your support!
Devan W.
The Feno Smartbrush gives my mouth a truly refreshed, clean feeling. The full-mouth bristles, along with the foaming toothpaste, feel like they really get in between every tooth and area of the mouth. After just 20 seconds, it gives the feeling of thorough brushing and flossing (similar to a post dentist visit), in one easy step. It makes me feel like I'm doing a good job caring for my oral health - especially as a busy mom where I don't always have time to prioritize self care.
Response from FenoJun 16, 2025
Thank you so much for sharing this—it means a lot to hear! We're thrilled that the Feno Smartbrush is making oral care easier and more effective for you, especially with everything on your plate. You deserve simple, powerful self-care, and we're so glad we can be part of that routine. 💙