Monday, November 9, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
93 reviews
FenoSelect a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
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 The Fair Hearing, with an average rating of 4.6 out of 5.
Showing 79 reviews with 5 stars · Clear filters
Was able to use the 360 toothbrush and it was a great experience. I loved how clean it made my mouth feel after using it, especially getting the back part of my teeth which is pretty hard to clean with a regular toothbrush. Also being able to brush all of your teeth in 10 seconds makes it easy when the last thing you wanna do before bed is brush your teeth.
By Rebecca M.
After getting to try this new style of toothbrush I found that it is not only very convenient because it cleans your teeth so quickly but I also found that it does a great job for such a short amount of time. I look forward to getting one of these toothbrushes for my husband and each of my kids as well!
By Kayla L.
I had the opportunity to use this toothbrush and I liked using it. I can see myself adding this as another tool in my daily oral hygiene toolbelt. Thanks for letting me try it, I can't wait to see it come to market!
By Bobby J.
Great experience when trying out the brush. Feeling my teeth clean in seconds was calming on a stress and time level.
By Billy S.
I have absolutely loved my experience trying out this toothbrush. To be able to have clean teeth all around in 10 seconds is amazing! It is unique and unlike anything I've tried before. It made great contact amongst all of my teeth and they have never felt cleaner!
By Mackenzi W.
Very responsive and communicative customer service.
By Rebecca
I recently had the opportunity to use the whole mouth toothbrush, and must say I was thoroughly impressed with its performance. The toothbrush, which had a unique design, made it easy for me to clean my entire mouth thoroughly and effectively. One of the main things that I appreciated about this toothbrush was its deep curve. The head of the toothbrush was designed in a way that allowed it to reach all the nooks and crannies of my mouth, including the hard-to-reach areas at the back of my mouth. This made it easier for me to clean my teeth and gums thoroughly, and it left my mouth feeling clean and fresh in such a short amount of time. The bristles of the toothbrush were also of excellent quality. They were soft and gentle on my teeth and gums, yet firm enough to remove any plaque or food particles that may have been left behind after brushing. So excited to see the final product.
By Maya B.
