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.
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Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
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Very quick response to my question. Thank you for this information as I am checking this out. It helped me a lot as I am deciding a purchase.
Update (6-30-2025): I've been using NoveFlow, and I can breathe more clearly than before. My snoring has also improved and isn’t as bad anymore. I have high hopes that it will continue to improve my breathing and reduce my snoring even further.
MB
Mark B.
Cleriva has worked for me
Cleriva has worked for me. I used to have recurring night time congestion, now several weeks congestion free without other meds or sprays. I use it most days.
JP
John P.
The Cleriva customer service team is highly responsive and helpful
The Cleriva customer service team is 100% committed to total customer satisfaction and personal attention. I received replies to their 'contact us' email in near real time and the customer service representative knew all the facts regarding my purchase and inquiry. I highly recommend Cleriva products which they back up with comprehensive customer service that is professional, courteous, and well-informed.
CC
Carlos C.
Very Cinfident of the Effectiveness of the priduct after using it in 3 days
Confident abiut the effectiveness of Nova Flow Cleriva bases on the comments from satisfied customers, its treatment of Sinusitis, Inflammatiin, Runny Nise, Difficulty to breath, Nasal Congestion, Mucus Phlegm which I have been struggling since late 1970s, I ordered the product inline thru Facebbok. When I started using it, in 3 days, I was amazed of how it gave me so much rekief that I shared my testimony in Facebook and Group Chats. And the quuck respinse and aporeciatiin by the supplier to my testiminies and request by email was very prompt and remarkable. I cibsider it a Breakthrough and tell my daughter to also buy tge product
JA
James
3 weeks later and still no delivery of…
3 weeks later and still no delivery of product.
Poor service. Could have got it sooner elsewhere. Not 100% transparent on their deliveries. Wish I hadn't of bothered. Will be returning and refunding when/if it ever arrives.
Response from ClerivaJun 9, 2025
Hi James,
Thank you for bringing this matter to our attention. We sincerely apologize for the inconvenience you've experienced with your delivery. A three week delivery timeframe is unacceptable and likely indicates an error on the courier's end. Please email us at [email protected] with your order number, and we will address this promptly.
Thank you for your understanding, and once again we deeply apologize for any inconvenience. We look forward to resolving this quickly.
SK
Saadia K.
I stop using all my medications.
I stop using all my medications.
AD
Adie
I believe this really works.
I have been having a lot of congestion issues due to a deviated septum and post-nasal drip, (among other things) and it was really starting to affect my sleep, plus my mornings, and day in general. I was finding I couldn't lay down without congestion at the back of the throat... and was getting quite desperate for relief.
I saw adverts for Nova Flow by Cleriva on Facebook and whilst I was apprehensive, I decided to give it a shot.
It's pretty straightforward to use, and I was pleasantly surprised by the feeling even after the first use. My airways felt clearer almost immediately. Then with just a couple more sessions, I found I was able to lay down and get a decent night's sleep. When I use it twice a day, I find the effect lasts longer and it not only helps the night, but the morning too.
Whilst I confess, I have been taking other supplements to also aid with this, they weren't enough alone, but now, with the Nova Flow product too, I can feel more human again. Thank you Cleriva.
PS. Their customer service is amazing too. They're very friendly (it's personal, not robotised!) and helpful.
SK
Siddhartha K.
Cleriva Review
I came across Cleriva on my Facebook feed. As someone with allergic rhinitis who struggles with nasal issues, it immediately caught my attention. At first, I assumed it was just another gimmicky product that makes big claims but doesn’t actually help.
Then I started doing some research and saw that others had found relief using it. Even then, I wasn’t completely sold on the idea that such a small device could really make a difference. But my allergic reactions had been getting worse. I was waking up tired and congested, and it was getting hard to breathe comfortably. So I finally decided to give Cleriva a try.
I received my device about a week ago. I used it twice a day for the first two days and didn’t notice any difference, which concerned me a little. Then I realized the recommended usage was three times daily, and that results could take a couple of weeks to show.
Now, after using it consistently for a week, I’m honestly surprised by how much better I can breathe. I wake up feeling refreshed and clear. I highly, highly recommend this product. Thank you!