Vivanmn Reviews 1,299

Very poor customer service. After using MNM, I experienced a severe headache and contacted the company to request a refund. They agreed and advised me to return the product.
I sent the item back on 17/02/26 and have proof of delivery. I also included the receipt inside the package and provided a copy by email. Despite this, I keep receiving responses saying they have not received my return.
It has now been over a month, and I still have not received my refund. I have provided all the required evidence, but the issue remains unresolved.
Based on my experience, I am very disappointed with how this has been handled.

Absolutely fantastic product. This is my second order
Brain fog lifted and so much more energy. Highly recommend. They’re customer service is exceptional too

Absolutely the worst company I have ever had to deal with. Horrendous customer service.
I purchased my first pot but didn’t get on with it so sent it back as per their refund policy at a cost to me. I cancelled my subscription however they still sent me out another pot. I emailed to request my first refund to which they said it had not been received. I provided the tracking evidence and after a few emails back and forth they finally refunded me. So I sent the second pot back, again at my expense to which they are saying again they have not received it. I again provided evidence and proof that it has been received and signed for but they are denying it. 15 emails back and forth to date to get a refund for something I had cancelled and no apology at all from them at all just absolute denial about receiving the parcel when Royal Mail have provided me with photographic evidence. Absolutely no customer service or apology.
Disgusting way to treat a customer. How
Any more emails will take to get my money back? Awful awful company.
Update, it is now 17 emails. They refuse to accept proof and evidence that the item was returned back to them.

Bought this for myself and my husband, but there was no difference in how either of us felt. I had tried to cancel the subscription, but couldn't figure out how to do it on the website. Wrote to Customer Services and they said I could do it via my account. Not true. I couldn't find anything on there to cancel it. Emailed them again and got the same response, so now I don't know what to do. I have asked them to cancel my subscription, but they just told me to do it myself. I am a pensioner and it was a considered purchase. If it's not doing me any good, then I am wasting a lot of money each money and the Company just doesn't seem to care. In fact, I think they are deliberately making it difficult for people to cancel their subscriptions.

Been using viva NMN for quite a while now , I feel it definitely helps me feel better in many ways . I like the fact they are 3rd party tested and British company made here so you know that your getting , also a good price bracket that’s affordable

Excellent customer service would definitely recommend

I started using this after looking into NMN, that’s was over a year ago and now my husband takes it. I use the offer 3for2, and they are regular discount codes.

The supplement is OK but they are nightmare to deal with. I tried to cancel my subscription last month but they have continued to debit my account. If you try to reply to their emails your reply just bounces back. They ignore messages on the website - I am going to have to take it up with my bank.

Replied quickly and sorted a delivery issue out without question.

Absolutely fantastic costumer service replied within one minute .
I have been taking these for three months and feel so much better . Awake and full of life . I ran out as forgot to order any more and went back to low energy levels . Just shows they work . Looking forward to my order

Great customer service - emailed with a query & had an immediate response & problem resolved

Great customer service, very quick delivery. It’s a repeat order, I wouldn’t be without these now, they help me feel more energised and reduce brain fog.

Quick delivery but the supplements gave me heart palpitations and a terrible headache- made me feel awful. Won’t be buying again.

I’ve been using VivaNMN since last August and noticed a massive difference in energy levels as a late perimenopausal woman. Wouldn’t be without them now.

Delivery is always so quick and customer service I was excellent when i had to contact them.

Been trying VIVA NMN for nearly a year and on subscription for 6 months or more. I have realised that I do not feel any different and on re introducing my Magnesium found that this is what helps me sleep.
I have let this subscription roll for far too long which is my fault but now find it is impossible to cancel subscription`online` - I await a reply to my E mail to them. PLEASE DON`T BE FOOLED by the companies auto response on Trustpilot of :-
Hello there, we have checked our system and have no orders under your name, we believe that this review may have been written under false pretences. If that is not the case please feel free to reach out to sales@vivanmn. com - I have my proof of spending over £160.00 with this company with my card ending 5159 !. - I will give Viva NMN one day to reply and then contact my card company to cancel my payment method with them. - AND NO. PHONE NUMBER FOR THEM !

I’m noticing a change in my attitude. I’m more positive, generally. Small chores that used to feel like mountains to climb just ‘happen’ now. I have more energy. Less likely to slump during the day. I’ve been taking Vivanmn for two weeks. My husband is now taking it having seen the change in me

Something went wrong with my order and an old address came up as the delivery point. I messaged Vivanmn , and they'd re issued the order in under 5 mins. Amazingly quick response.
I was really surprised how quickly they dealt with the problem for me.

I have been taking nmn for nearly 2 months now. I’ve noticed a difference in my sleep and my cognitive function. I feel switched on, alert and the misty fog that hat I had previously has now almost gone. This is going to be my staple in my vitamin stock. No longer fearing perimenopause!!
Their website is super user friendly unlike some companies, making it easy to manage your subscription as and when needed.
Refreshingly wonderful!