Really happy with my experience. The staff were friendly, professional and made me feel very comfortable. Everything was explained clearly, my order arrived on time, and I’m really pleased with the service. Highly recommend! 😊🦷 Arish
SB
shabana B.
Impatient customer
Since July I'v paid monthly instalments until the last 2, I paid in full., My top aligner does not fit , could be myself inserting the mould for a minute rather than 3-5 minutes using a kit method . I had received my aligners. My lowest aligner fits well and the top right was a bit of a problem. The customer service is brilliant, at least the reply was at around evening time than not replying at all. I recommend this service to anyone. Seeing peoples reviews does not prove this service is bad.
RM
Rachel M.
Really poor customer service
Unfortunately, my experience with Overnight Smile has been extremely stressful from the beginning.
The problems started when my impression kit arrived. The box was damaged and there were no instructions included. I tried contacting customer service for help, but it took forever to actually get hold of anyone.
The next issue was having to chase up the prescription. Eventually I managed to place my order, but communication became so poor that I genuinely started to worry that the whole thing might be a scam. My emails and phone calls were not being returned, despite the amount of money I had paid.
When I finally spoke to someone, I dealt with a very angry young man who seemed to take personal offence when I explained my concerns. He ranted at me and threatened to hang up if I became “aggressive”. Ironically, the only person I felt was being aggressive during the conversation was him. It was an extremely unpleasant way to treat a worried customer.
I was told my aligners would arrive within three weeks. On day 22, having heard absolutely nothing, I contacted them again and was told they had already been dispatched. Yet nobody had sent me a dispatch confirmation or tracking number.
Thankfully, I have now received the aligners, so I am relieved about that. However, even the final presentation was disappointing. They arrived in a flimsy box with packaging that leaves a lot to be desired — and, once again, there were no instructions inside.
I sincerely hope the aligners themselves work, because the product now has a lot to make up for.
The whole experience of dealing with Overnight Smile has been unnecessarily stressful. Better communication, proper instructions and respectful customer service would have made an enormous difference. For something involving your teeth, your money and your confidence, customers deserve to feel reassured — not ignored or spoken to aggressively.
Response from OvernightSmileSep 26, 2026
Thank you for your feedback, and we're glad the aligners arrived safely within the timeframe provided.
Our records show several calls with you, including one on the day of dispatch to let you know your aligners were on their way. Tracking is also sent automatically, both by our shipping platform and by Royal Mail, so if nothing reached you we apologise for the inconvenience and are happy to resend the details.
Instructions are included in every kit and also sent by email. We have resent them to you today.
We hope your treatment goes well, and we're here if you need us.
CT
Ct
Read the terms and conditions
Update:
On 16 September, following their initial contact, I emailed them asking for my questions to be answered in writing so that I could properly review the information and keep a clear record of the advice given to me. I did not receive a written response to those questions.
OvernightSmile did attempt to call me a second time on 26 September at around 8am, moments prior to leaving their review reply belwow. However, I have asked for the information to be provided by email.
I have waited 10 days for a written response to questions I raised and only got a second call after posting a review. Via their own marketing emails, my treatment plan has expired and can no longer be purchased. I now understand that, under their terms, I will also need to redo my impressions before proceeding with a new treatment plan.
What I find particularly frustrating is that I was actively trying to clarify my concerns before proceeding with treatment, and I requested written communication so I could properly consider the answers and potentially review them with a dentist in person, if required. Instead, I have been left waiting while the treatment plan has expired.
OvernightSmile have now responded publicly to my review saying they aim to answer questions promptly and that they attempted to contact me by telephone. I appreciate that they have attempted to call, but this doesn’t change the fact that my request was for written answers and those answers were not provided within the 10 days I was waiting for them.
Original:
I purchased an OvernightSmile impression kit and completed the impressions at home. I wasn’t confident that one of the impressions had been taken correctly, so before sending the kit back I contacted OvernightSmile and specifically asked whether I could send photographs so they could check it.
I was told: “Please share a photo and we can advise.”
I sent the photographs as requested, but I did not receive a response advising whether the impression was suitable. I then followed up again because I was still waiting for an answer.
I also later had concerns about the proposed treatment simulation and wanted clarification about the movements being shown. I specifically asked for the information in writing so I could properly review it and keep a record of what I had been told. Instead, I was told that someone would contact me by telephone.
I emailed back and requested the information in writing, particularly because I had specific questions about the proposed tooth movements and wanted to be able to review the answers carefully before making a decision about treatment. This has been unanswered and ignored.
What is particularly frustrating is that their own terms state that issues with impression errors or requests for additional material need to be raised within one week of receiving the kit. I was trying to raise the issue promptly and get confirmation before sending the impressions, but I didn’t receive the response I was asking for.
Their terms also state that if impression kits are used incorrectly they are not refundable and may not be replaced free of charge. This is something I think prospective customers should be aware of before purchasing.
As a result, I now understand that because the impression kit has been used, I cannot simply have another kit issued/refunded if the impressions aren’t accepted, despite having contacted the company to ask for guidance before sending them.
I have also found the communication frustrating because when I specifically requested written communication, I was instead told someone would call me.
I have not proceeded with purchasing the aligners because I have concerns about the proposed treatment and wanted those concerns properly answered first. However as my email has been left unanswered, I can no longer proceed with this treatment and will have to take new impressions if I wish to go again.
For anyone considering OvernightSmile, I would strongly recommend reading the full Terms of Use before purchasing the impression kit, particularly the sections concerning refunds, replacement impression kits, treatment-plan approval and the consequences of incorrectly taken impressions.
This review is based solely on my own experience and the written communication I have received from the company.
Response from OvernightSmileSep 26, 2026
Thank you for your feedback. We always aim to answer questions and assist clients promptly and informatively. In some cases, when we receive an email with a large number of questions, we opt to call and speak with the client directly to explain the answers and avoid a long chain of back-and-forth emails. We attempted to reach you by telephone twice, and we remain happy to follow this up.
Regarding the impression kit, where impressions come back with defects or distortions we arrange new ones at no charge. Impression kits themselves are non-refundable once dispatched, as set out in our terms.
We are very sorry you have not had the experience we would have hoped for, and we wish you the best on your journey.
PA
Paul
Great results
I've finished my course of aligners which were received in the time scale quoted after i sent back the impression kit. Customer service has been great and I’m really pleased with the results, not much pain or discomfort whilst wearing them. I now have straight teeth and I'm really pleased with the results. I’d definitely recommend this company.
BH
Bee H.
After what felt like a long 3 weeks of…
After what felt like a long 3 weeks of getting no where I eventually spoke to someone who was extremely helpful and talked me through how to fit the alingers on the top. Initially I thought they didnt fit as I couldn't get them on. The bottom ones were great and easy to fit but the top I thought no way would they fit but with a little guidance they are now in.
The bottom row have already began to straighten after 3 weeks which im so happy about.
Don't be put off by the negative reviews they will guide you and help you.
Definitely worth trying and at a great price.
AM
Abbie M.
So far so good
So far so good. Tray three and can see movement in teeth heading towards the right direction. For the price you pay you can't really complain.
Only thing I would say is the company hide a lot in the t&c such as advertising 7 day delivery but hidden in the T&c it says 30. So read those because it's not exactly as advertised. That's the reason for a star being removed.
However for the price they do the job
F
F
Great communication
Great communication. I messaged with a query and they rang me straight away. Finished my first sets, they are now sending me some refinement aligners. Happy so far.