WhaWhat a time saver, my teeth have never felt cleaner. I love the power and the versatility.t a time saver
What a time saver, my teeth have never felt cleaner. I love the power and the versatility.
About Feno
Data updated- Website
- feno.co
- Category
- Health & Medical
- Location
- United States · Culver City
- Status
- Unclaimed
- Last 12 months
- 46 reviews
- Replies to negative
- 100% (7/7)
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Is Feno legit?
Feno (feno.co) has a 4.5 out of 5 rating on OK.one, based on 61 user reviews collected here. It is listed under Health & Medical and its reputation is excellent. 88% of reviews are 4 stars or higher and 11% are 1 star; The business has replied to 100% of negative reviews; 46 of them were added in the last 12 months. Last updated 2026-08-10.
What people say
Feno… WE KNOW
Ordered over a month ago and have yet to receive any information on my package. Also the tracking link on my package just stopped working and when I try to track it via the feno website, it’s says order not found. I am baffled by the lack of honesty and communication.
Reply from Feno2026-07-20
Hi Declan, We're sorry for the trouble here. After looking into this, we weren't able to find any order matching your details in our system — and it appears the site you ordered from isn't us. Unfortunately there are counterfeit websites impersonating Feno that aren't connected to our company, which would explain the missing order and the broken tracking. Our only official store is feno.co. To help recover your payment, we'd recommend disputing the charge with your bank or card provider (or through PayPal, if that's how you paid). We're also actively working to get these fake sites shut down. If there's anything we can do, reach us at [email protected] and we'll help however we can. — The Feno Team
I LOVE my Feno device
I LOVE my Feno device - it has totally transformed the way I approach my dental hygiene. Previously I dreaded brushing my teeth but using Feno actually makes it fun and when I wake up in the morning my mouth feels great! Highly recommended!
Love it!
My Feno brush is super easy to use and a huge time-saver! Works great and leaves my teeth feeling fresh.
Amazing product and service
I am extremely satisfied with both the product and the service provided by Feno. The product exceeded my expectations in terms of quality, design, and overall performance. It is clear that a great deal of attention has been paid to every detail, resulting in a reliable and user-friendly experience. What truly sets Feno apart, however, is their customer service. The team was professional, responsive, and genuinely committed to ensuring a smooth and positive experience from start to finish. Any questions I had were answered promptly and thoroughly. It's rare to find a company that delivers excellence in both product quality and customer support. I highly recommend Feno to anyone looking for a premium product backed by outstanding service. I would not hesitate to choose them again in the future.
Excellent product and excellent…
Excellent product and excellent customer service! Highly recommended
Super satisfied – the most modern toothbrush I’ve ever used
So I’ve had a really good experience with Feno so far and would definitely recommend it!! What I like most is how much easier and more practical it makes brushing your teeth, especially in everyday life when things need to be quickly. In the past, I sometimes forgot to brush my teeth properly because it felt like it took too long, or I simply brushed too quickly and not clean enough. With Feno, that problem is basically gone. It is very fast, easy to use, and every time after brushing, my teeth feel extremely clean — almost like after a professional dental clean. Some of my friends are also really impressed by it because it makes daily dental care so much more convenient. I had one or two small issues at the beginning, but the support team helped me very quickly and gave me useful answers right away. That made the overall experience even better. Overall, I’m actually very satisfied with Feno and can honestly recommend it…
Good product with ever evolving…
Good product with ever evolving features. Highly recommend.
Top product
I’ve been using it for over 2 months and i love it! It saves so much time.
I’ve been using the Feno electric…
I’ve been using the Feno electric toothbrush and Feno mouthwash for about two months now, and I can honestly say the experience has been incredible. One of my favorite things is how fast and easy it makes my morning routine. In about 30 seconds, I’m done brushing, and I feel confident that all of my teeth are getting cleaned thoroughly. With a traditional toothbrush, I always worried about missing certain spots, but Feno takes that concern away. Since switching to Feno, I’ve noticed healthier-feeling gums, no more dry mouth when I wake up, and a significant improvement in fresh breath throughout the day. Overall, it’s made taking care of my teeth much easier while helping me maintain better oral health. If you’re looking for a more convenient and effective way to brush your teeth, I highly recommend giving Feno a try.
Great platform and great service from…
Great platform and great service from Feno
Great for teenagers and adult
I bought Feno for my 13 year old daughter and she loves it. She brushes on her own and I know I can count on Feno that she brushes her teeth the right. Shortly after, I bought one for myself, I also enjoy the easy and quick brush. Highly recommended.
I ordered the Founder's bundle
I ordered the Founder's bundle. My oral care is markedly better, per my dentist and dental hygienist from using the brush alone. There have been some issues with the handles from time to time and Feno has been happy to replace them. Customer service is easy to communicate with and do their best to assist in every way possible. I find the value of the brush worth the cost by a margin.
I love the product and continued…
I love the product and continued support and updates.
Amazing customer service and great…
Amazing customer service and great products
Zero
Zero stars if I could. I ordered from Feno over two months ago. After waiting with no updates, I was finally told by their customer experience team that they were dealing with a "temporary stock issue". They tried to smooth it over by offering extra Feno Foam, but it's been over two months now and the item still hasn't even shipped, with no communication in between. It is completely unacceptable to take customers' money for items you don't actually have in stock to fulfill. I have officially requested a cancellation and a full refund. Avoid this company unless you want your money tied up for months.
Reply from Feno2026-06-02
Hi Jake, First off, we're sorry. This is not the experience we want for anyone, and we completely understand your decision to cancel — your full refund is on its way. Feedback like yours is exactly what helps us get better, and we've taken it to heart. We're tightening up our order tracking and customer updates for international orders as a result. Thank you for the honest feedback, Jake. It matters to us. — The Feno Team
Great Customer Service
I've left reviews for Feno before because I genuinely love this toothbrush, but I had to come back and write specifically about their customer service — because it deserves its own spotlight. A few weeks ago I sent them a simple, low-stakes email. My brush wasn't holding a charge the way it used to, and I was really just asking whether this was a known issue after about 18 months of use. I wasn't complaining. I wasn't demanding anything. I was genuinely just looking for information. The response was immediate — and completely blew me away. No runaround, no request for purchase records, no lengthy troubleshooting questionnaire. They simply told me they were putting a new brush in the mail. In a world where getting a company to acknowledge a problem — let alone actually solve it without a fight — has become an Olympic sport, Feno just handled it. Quietly, generously, and without making me feel like I had to justify myself. This is what customer service is supposed to look like. They stand behind their product and they value their customers. Highly, highly recommend — not just the brush itself, but the whole experience of being a Feno customer.
Complete Disaster
This is my second review. The first one explained how feno's blinkered focus sells to everyone as if we are all in the US, but anyone buying outside the US will not get the same treatment. Everything they post takes months to arrive. The most recent shipment still hasn't arrived 2 months after it was sent. This is no longer a problem as I am no longer using the device, but it's a good indication of the inefficient service they offer. So why a second review? When you buy a feno they give you this whole story about an AI scanning process that can accurately measure which mouthpiece personally fits you. This turns out to be a process where they take a photo and then manually guess. I got sent 2 mouthpieces with the original purchase, neither fit correctly. I asked for sizes but they refused and then sent another mouthpiece that also didn't fit. They then sent the actual measurements by which I could see why none of them fit, and the last choice of mouthpiece size was posted (the item that has never arrived) So during this multi-month-long waiting process, I was using the best fitting mouthpiece that wasn't quite the right size, did not account for overbite misalignment between upper and lower teethlines and it damaged an implant that will now cost me about £4000 to fix. My implant was not lose beforehand, but it is now, caused by the shaking motion. There's nothing worse than spending so much time, effort and money to improve things, and the knowing that your own decisions have made it worse. So you should be very careful when considering whether to use this toothbrush. It's basically a mouthpiece that's being shaken from side to side, there is no 'intelligence' to it, especially when it comes to mouthpieces. Their claims of matching shapes and sizes to a large dataset appears to be complete sales talk, because none of the mouthpieces I was sent even reach the last molars, all of them might be suitable for 28 teeth (perhaps thats a norm in the US) but they do not clean all 32 and they basically have 5 fixed size options. All mouthpieces I was sent assume a perfectly aligned bite, and if you have an overbite the pressure is not as intended. I didn't write this review straight away because I was so angry. If I lived in the US I have no doubt I would be suing them for damages, and I consider they got off lightly by just giving me a full refund, but that does not come close to the dentist bill I now face to repair the damage. In summary, for me a complete financial and dental disaster. If you already have strong health teeth and a perfect bite, this idea might work for you. If you have overbite, implants, other structural dental work or anything lose in your mouth I would recommend you stay away.
Reply from Feno2026-06-02
Hi Dave, thank you for the detailed feedback, and I'm sorry for the experience overall. On shipping, you're right — the international delays you describe, including the shipment that hasn't arrived, are not the standard we hold ourselves to, and we're working to improve fulfillment outside the US. I'm sorry to hear about your implant. We take any concern like this seriously and want to understand it fully. Established clinical guidance indicates that a fully integrated implant isn't loosened by toothbrush vibration, but every situation is different and I don't want to dismiss yours — if you're willing, please share your dentist's assessment with us directly at [email protected] so we can review it properly. On sizing, the fit clearly didn't work for you, and that feedback genuinely helps us improve our mouthpiece range. We've issued your full refund, and I'd welcome the chance to follow up with you privately. — Kenny, Feno
Never delivered - scam
I ordered over a month ago with a promise of delivery within 3-7 days. Now they still have not shipped my order. Their support is useless. I have asked for a refund twice now and they have not responded. On top of this, you have to pay a subscription (which I also had to pay before them shipping). Overall awful experience.
Reply from Feno2026-04-30
Hi BC, Thank you for taking the time to share your feedback, and we're truly sorry for the frustration here. Based on the details, it looks like you may be writing from Switzerland — international orders do take longer to arrive than US orders, as outlined in our international shipping policy. That said, we'd love the chance to make this right. If you could identify yourself by emailing our support team with your order details, we'll look into your shipment, expedite where possible, and follow up on your refund request right away. Looking forward to hearing from you.
This thing is actually awesome
This thing is actually awesome. At my last dentist appointment, I had my best gum checkup ever. Finding the right mouthpiece fit is easy. One thing I didn't know I would enjoy would be the time saving aspect of this toothbrush. Over the course of a week you save: 21 minutes, 30 day month: 90 minutes, Year: 1,095 minutes, which is 18 hours 15 minutes. That's a freaking win in my book. only complaint is the tooth paste. The straw does not reach the bottom making it difficult to get to the last part of the liquid.