ben S.
Love this product
Love this product. Who would have thought there could be an entirely new way to brush your teeth. They did it. It’s not only a new way but a much better way.

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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ben S.
Love this product. Who would have thought there could be an entirely new way to brush your teeth. They did it. It’s not only a new way but a much better way.
Kal W.
Customer service is top notch. Always available if anything comes up. And they resolve the situation fast!
Tanay G.
Love the product
Hunter C.
I preordered the Feno brush and my experience with it has been great. Great quality product
Harper M. C.
I had a very disappointing experience with this company. I requested to cancel my order before it was fulfilled and clearly explained the reason when asked. After that, communication stopped. Emails were not answered, and when I tried calling, no one picked up. Instead, I received an automated message saying phone support is unavailable and to contact them via text or email — which I had already done, multiple times. Despite following their instructions and providing everything they asked for, I received no confirmation of cancellation or refund. I was forced to open a PayPal Credit dispute just to protect myself. This experience caused unnecessary stress and wasted time. A legitimate company should not ignore customers once payment is made, nor make support inaccessible. I would strongly caution others before ordering. Tugba ugurlu
Response from FenoJan 20, 2026
Hi Harper — we’re truly sorry for the frustration you experienced. That’s not the experience we want for anyone. We’ve reviewed our records but can’t locate an order under this name. Please note there are unaffiliated third-party sites selling products claiming to be Feno, which we are not connected to. That said, we genuinely want to help. Our phone support is limited, which is why calls may route to email/text, and we understand how frustrating that can be. If you purchased directly from Feno, we’d like to investigate and resolve this properly. Please contact us at [email protected] with any order details or receipt so we can assist.
Adrian L.
Feno Toothbrush is one of the most innovative dental products of our day, & age! The time saved, makes this product worth every cent.
Mark H.
Feno has been excellent to work with. Not only is their product everything they promised (and more), but their customer service has been top notch! I can't recommend Feno highly enough!
Thiago S.
Feno has introduced a compelling new approach to at-home oral healthcare. The company's product provides a detailed analysis of oral health, moving beyond simple cleaning to a more proactive and informed approach to dental hygiene. While the term "game-changer" may be premature, Feno's current technology is a significant step forward. It offers valuable data that empowers users to understand their brushing habits and monitor their oral health from home. I am particularly fascinated to see how their future technology evolves as the company matures. The foundation they have built is solid and suggests a promising future for both Feno and the field of at-home oral health.