ClerivaAt 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.
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Salons & Clinics · San Francisco, California
Excellent
Salons & Clinics · Long Beach, California
Excellent
Salons & Clinics · San Francisco, California
Excellent
Salons & Clinics · Desert Hot Springs, California
Excellent
338 approved reviews, newest moderated first
Fay S.
The customer service is Superior to any other company I’ve ever dealt with when it comes to a money-back-guarantee. Speed, responsiveness, and refund all within an hour of my first email. A++++ And, while the Novo Flow didn’t provide the relief I expected, I wouldn’t hesitate to purchase products from Cleriva.
Richard D.
The customer service was very good. The agent was I received a full refund for the NovaFlow without any problems as I thought I was buying the NovaFlow 2.0 and got the original NovaFlow. Well done!
Sheri R.
I have ordered a lot of things online. Some companies have good customer service some do not, then there’s Cleriva. If I could give them 10 stars I would. Coney responded in less than hour and resolved my issue, no questions asked.
Ellen H.
Customer service is on point. My question was answered and resolved within mere minutes of being asked.
William R.
They sent me the previous version of the product instead of the one advertised. This lead me to be very disappointed and slightly distraught.
Response from ClerivaOct 8, 2026
Hi William, I'm truly sorry for the disappointment and frustration you experienced after receiving the Original NovaFlow instead of the NovaFlow 2.0 you were expecting. I completely understand how upsetting this must have been, especially when you were looking forward to trying the newer version. Upon checking your Order #44226, I can confirm that the purchase was for our Buy 2, Get 1 Original NovaFlow offer, along with the Sterilizing Kit. The Original NovaFlow and NovaFlow 2.0 are two separate products, and I sincerely apologize if the differences between them weren't clear when you placed your order. As discussed in our previous email correspondence, I've already processed a full refund of $109.95 USD for your entire order. The amount should reflect in your original payment method within 3–5 business days, depending on your bank or payment provider. I'm truly sorry again, William. We never want our customers to feel disappointed or misled, and your feedback is valuable in helping us improve how we communicate the differences between our products. If you have any further questions or need assistance, please feel free to reach out to me directly at [email protected]. I'll be more than happy to help.
sharon
I was sick with sinus infections for years every 6 weeks. I went to an ENT. I had 3 surgeries that did not heal this. I was on prednisone and antibiotics for years. It just made me gain weight. I went to 3 ENTs. The last 4 years it got worse. I was sick every day with extreme pain in my head and sinus. I tried everything. I’m a functional medicine practitioner so I tried many natural remedies. Nothing worked until I bought your 2.0 system and use it three times per day. Within days I was well. I can walk my dog around the block. I remember becoming hysterical crying in the new ENT office when he looked at my cat scan and said there’s nothing he could do. Thank you so much for the research you did. It saved my life. I’m 72 and still may have a few years to live a normal life. I recommend this on Reddit for people who are suffering. Thank you. Sharon Chud
Philip S.
Coney from customer services was really helpful & understanding. I am impressed with the customer service and good communication.
SJ
Customer service was excellent prompt, professional. The product didn’t work for all of us but the process was user friendly.