At Cleriva, we create science-backed solutions that unlock the power of better breathing for deep sleep, laser focus, and lasting energy. Our mission is to elevate your quality of life by making better health effortless so you can feel your best every day.
Cleriva (cleriva.com) has 338 customer reviews on Five Star Index, with an average rating of 4.6 out of 5.
Also known as
cleriva.com
Website
cleriva.com
Category
Salons & Clinics
Location
West Hollywood, California
Listed on Five Star Index
2026
About these reviews
Replies
The company replied to 11% of reviews.
Latest
Most recent review: October 2026.
Edits
Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
Score
This company cannot pay to remove reviews or change its score.
Customer service responded quickly, I received my item soon after. Haven’t noticed an improvement yet but it’s only been a few days of using.
Response from ClerivaMay 10, 2026
Hi Laura,
I’m really sorry for the worry and frustration this has caused. I completely understand why you’d feel concerned when the tracking hasn’t updated for several days.
Please send us an email at [email protected] with your order number (usually a 5-digit number like #00000), and I’ll personally look into the shipment status for you right away. I’ll do my best to check what’s causing the delay and help get you a clear update as soon as possible.
We truly appreciate your patience, and I sincerely apologize again for the inconvenience. We’ll make sure this is properly looked into for you.
EN
Erin N.
Customer service response was fast
Customer service response was fast
HO
Honestgal
This is something I've only used twice…
This is something I've only used twice and I'll explain why I'm giving it the rating I am. More power to you if you can get this to stay in your nose! That's the first bit! Secondly I'm extremely sensitive to smells following hay-fever and sinus problems. To the point i will start coughing and gagging even if something is as little perfumed as possible and no chemicals. I've tried mainly nasal sprays which didn't do much unfortunately. The problem was very minimal until we had snow this January then it went up a notch to regular usage of tissues. The soft gentle pocket ones. To regular coughing and gagging. I've had antibiotics on maybe two occasions when it has gotten really bad. I've eliminated all chemicals. Do not use anything highly perfumed anymore. And have my nose covered when using anything like washing detergent etc because that will set it off. This product however is a nightmare to insert into your 👃 I dunno if I'm doing it wrong or my nose is too big but it's extremely uncomfortable too. I'll continue reporting on usage
Response from ClerivaFeb 16, 2026
Hi,
Thank you for taking the time to explain your experience so honestly. It really helps, and I’m sorry to hear how sensitive your sinuses have been. That sounds exhausting to deal with, especially when even mild scents can trigger coughing or gagging. You definitely shouldn’t have to force the device into your nose. NovaFlow is designed to sit comfortably at the entrance of the nasal passages, not pushed in deeply. Some customers find it more comfortable if they remove the protective sleeves, as that can make it feel slimmer and easier to position. If you’d like, our support team can also walk you through positioning tips.
That said, NovaFlow won’t be the perfect fit for everyone, and we genuinely appreciate you giving it a try. We offer a 120-day money-back guarantee with completely free returns, so you’re never at risk if it doesn’t work for you.
For best results, most customers use NovaFlow consistently for a few more weeks. But if you’ve already decided it’s not right for you, or if it continues to feel uncomfortable, our support team is available 24/7 at [email protected]
and will be happy to arrange a full refund. Thank you again for giving us a chance and for sharing your feedback. As a growing business, it truly means a lot to us.
GY
Grace Y.
(see comments for update) SCAM - don’t bother ordering, you won’t receive anything
Ordered nearly 2 weeks ago and it never arrived. Buyer beware!!! First and last time I’m ordering something from a Facebook ad 😡
**EDIT 16 November** I am now changing my review from 1 to 3 stars after customer service got in touch with me. It looks like my package took a very long time to clear UK customs, and once it was cleared it was subsequently lost in the post.
The customer service representative has been very communicative with me and I’ve now received a full refund. I’m glad that it’s been resolved, but I can’t give a higher review than this because I never received the product.
I understand that it was not the fault of Cleriva that my package was lost. However, I would not have ordered from them if I’d known that they were based overseas.
The website gives an American mailing address but I believe the product is shipped from China.
Response from ClerivaNov 7, 2025
Hi Grace,
I’m truly sorry for the frustration and inconvenience you’ve experienced. This isn’t the kind of experience we want any of our customers to have, and I completely understand how disappointing this must feel. After checking your order details, I can confirm that your package took a little extra time to clear customs due to high volumes and inspection procedures. Unfortunately, we’re unable to intervene during this stage since customs processing is handled entirely by national authorities.
The good news is that your parcel has now cleared customs and is currently being transferred to Royal Mail for final delivery. Once Royal Mail receives and scans your package, you’ll start receiving tracking updates from them, including an estimated delivery date.
I’ve also sent you an email with your tracking information so you can monitor the progress as it moves closer to you. Please rest assured that we’re keeping a close eye on your order until it arrives safely. I sincerely apologize again for this situation and truly appreciate your patience and understanding. If you need further assistance, please feel free to reach out to me directly at [email protected], and I’ll make sure you’re fully taken care of.
JO
Jo
Arrived broken!!!! Waiting for response
Have received these in a crushed box
They do not charge
Emailed waiting for response
Have received message saying they will replace
Fingers x will update once received
Response from ClerivaOct 16, 2025
Hi Jo,
I’m very sorry to hear about the condition your order arrived in. That’s definitely not the experience I want you to have. I’m really glad I'm able to sort things out for you right away.
I truly value you as our customer, and I'm hopeful that your complimentary replacement will reach you soon and without any further issues. I’ve also sent you an update with your tracking details so you can easily follow its progress.
If you need any support or have any questions, please don’t hesitate to reach out to us at [email protected]. I’ll be more than happy to assist you, Jo.
