While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

See what reviewers are saying

Rated 5 out of 5 stars

I'd experienced a delay in receiving my order and had initially written and angry review as it took almost a week to arrive but the CS team at NMN Bio were so sharp and reached out to me personally.... See more

Company replied

Rated 5 out of 5 stars

Superb customer service and products to match. I’ve subscribed and used NMN for months and have seen a noticeable difference in energy and recovery. I’ve tried different stacks and NMN+TMG works b... See more

Company replied

Rated 5 out of 5 stars

The best customer service sofar. Very c good communication, fast to respond and helps you in anyway possible that you get tour delivery as intended cannot fault them at all. So professional. I.would.... See more

Company replied

Rated 1 out of 5 stars

Customer service is terrible, I order product and staright away realised the shipping adress wasnt this same as the billing. So straight away I did contact them on the email and whats app.... whats ap... See more

Company replied

Company details

  1. Vitamin and Supplements Store

Written by the company

NAD+ boosting supplements


Contact info

4.3

Excellent

TrustScore 4.5 out of 5

156 reviews

5-star
4-star
3-star
2-star
1-star

Replied to 100% of negative reviews

Typically replies within 24 hours

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

I was happy the company was quick to…

I was happy the company was quick to deliver the from me ordered vitamin.
I have not quite taken this for one month, but I find it does not upset my gastrointestinal tract.
Also NMN bio made me feel very
Welcome, plus the item is a good
£10 cheaper which is important since I am on a modest pension.

September 30, 2022
Unprompted review
Rated 3 out of 5 stars

Annoyed

I am on a subscription and it is 1 month ago they charge me and they haven't started shipping yet. I know that they will not ship it to me, because I had to contact them every time to get my product.

I live in Sweden.

I trust that the NMN I buy is good.

Edit: If you contact them they are fairly fast to get back, but you have to do that.

September 21, 2022
NMN Bio logo

Reply from NMN Bio

Dear Krister,
We sincerely apologise for not delivering your order in time. Please note our EU warehouse is upgrading their systems to improve the speed, efficiency and precision of all operations. During this transition, there may be a slight delay in order fulfilment. We can see that you are a subscription customer since last year, and we really appreciate the vote of trust that you have put in our company. We just reached out to you via email and suggested a couple of solutions with regards to your shipment.

Best regards,
The NMN Bio Team

Rated 1 out of 5 stars

Beware -- they HAVE POOR LOGISTICS

Beware -- they DO NOT HAVE AN ORGANIZED COMPANY AND FAILED TWICE TO EVEN SHIP MY ORDER -- WAITED 2 WEEKS FOR NOTHING.

Placed order Aug 22.
No correspondence or tracking number ever given.

Emailed them Aug 29.
Received reply about delay and that they promised it would arrive by Sept 2 before my trip.

They emailed my order was not even shipped Sept 2.

I'd take a pass on them until trust pilot shows that they have their logistics in order.

September 2, 2022
NMN Bio logo

Reply from NMN Bio

We sincerely apologise for the delay with your recent order and we truly appreciated your patience during this time.

As outlined in our email communication to you last week, we were distraught to find out that there would be a shipping delay for our customers, which was unfortunately out of our hands on this occasion.

We went above and beyond to try and rectify this, especially as we are usually very prompt with all of our international shipping, but a Bank Holiday created another delay out of our control.

We are sorry to have let you down and after fully refunding you, we still shipped the order to you, which has now been delivered. We hope that you will enjoy our products and at some point would consider editing your review.

Kind regards,

The NMN Bio Team

Rated 1 out of 5 stars

I ordered a 500 MG bottle

I ordered a 500 MG bottle, I received a 250 MG bottle. So dar nothing back from support

August 31, 2022
NMN Bio logo

Reply from NMN Bio

Dear Dean,
Many thanks for your feedback. We have just looked at the order number associated with your last order, and as per our records, you have purchased a 250mg bottle. Furthermore, there is no chat log associated with your email or name. We just emailed you with a screenshot of the order and further details.
Many thanks,
The NMN Bio Team

Rated 5 out of 5 stars

The order site is confusing

The order site is confusing. I thought I had set up repeat orders but apparently not. Taking the pills is an act of faith. I'm still here we wont know whether the pills do what they say until I dont get sick and dont die

June 11, 2022
NMN Bio logo

Reply from NMN Bio

Thank you for your review and we hope that you are alive and well to read our reply! 🙂

We are rooting for you and please do keep us updated on your journey to longevity.

Rated 5 out of 5 stars

I love these products

I love these products, definitely see the difference as a ex athlete at 35 who has gained weight it has improved and helped me physically get thru cardio workouts as well as my body just feels more energized.

June 8, 2022
NMN Bio logo

Reply from NMN Bio

Hi Eric,
Many thanks for your review, we appreciate your time! We are glad that you are enjoying the products and to thank you, we are sending you a free gift in the next few days. Stay tuned!

Rated 2 out of 5 stars

I did not notice any changes

I did not notice any changes. It didn't make any difference to my energy levels whatsoever.

June 2, 2022
NMN Bio logo

Reply from NMN Bio

Dear Nela,

Thank you for your review.

We are really sorry that you did not notice any changes with our products.

We have emailed you with tips and guidance on how to improve your results with our products moving forward.

Best regards,

The NMN Bio Team

Rated 5 out of 5 stars

A trusted product

I bought an NMN product from a different company a couple of months ago and was disappointed for a variety of reasons including negative impact on sleep and no effect on energy levels. I swapped to NMN Bio a month ago and noticed the difference within 2 weeks! The first company only permitted review immediately after purchase but it was not possible to comment on its effect so soon after taking that product; unfortunately, I was no longer able to review afterwards! Be careful of other companies on the web; I can seriously recommend NMN Bio as it has made a difference as shared by many others.

May 21, 2022
Unprompted review
Rated 3 out of 5 stars

Too expensive

May 8, 2022
NMN Bio logo

Reply from NMN Bio

Hello RichO,

Thank you for your review and sorry to hear that our products are expensive.

We have sent you an email to discuss this matter further and we look forward to hearing from you.

Best regards,

The NMN Bio Team

Rated 4 out of 5 stars

Good service

Good service, fast delivery, I've now gone through 1 bottle of 250ml nmn and a quarter of a 500ml bottle and i am not sure if it's working for me or not because i don't feel any different, will finish my 500ml bottle and let you know if anything has changed, its also expensive.

May 2, 2022
Rated 5 out of 5 stars

I became interested in NMN two years…

I became interested in NMN two years ago when I heard an interview with David Sinclair about NMN. At that moment I didn't buy this peels. I dont know why..just i didnt ;D But in december 2021 I got sick with covid and my physical condition was not in a good shape. I didnt felt energy at all...I could not wake up in the morning and do simplest things. It was horrible experience. I decided that i need supplements for recovery and I bought NMN. After few days of using NMN i felt a huge difference. I still didn't feel such a lot of energy as before covid but I started to be able waking up and stop feel that i am "broken". It was huge difference. I noticed that i can think productively and do my work well (before that, I could not solve the simplest tasks.). After one month of using NMN the bottle finished and while i was waiting for the next delivery to arrive i felt that I am "broken" again (I didnt' use NMN for 5-6 days). So, i realised that the feeling of extra energy was not because I recovered after the covid. I realised that NMN helped me function during this period.
Its three month of using NMN already and I feel energy inside i see that I am more focused on tasks at work and I am so thankful to NMN Bio and to Elena (founder of NMN Bio) who also gave me some advices about longevity in general. Its high quality product, it works and this company strives to make innovative discovers in longevity topic. So, i trust to those who cares about future and about making our life easier and healthier. So recommend!

April 27, 2022
Unprompted review
Rated 5 out of 5 stars

Fantastic

When I read about this product, I wasn't convinced but I thought I'll try it.

I am amazed... I feel fresh in the mornings.
I'm a mobile sports massage therapist, and my endurance levels have gone, and diabetic levels are great.

April 10, 2022
Rated 1 out of 5 stars

100% Satisfaction Guarantee Is a Lie

The 100 % Satisfaction Guarantee is not a guarantee at all, you can only return unopened products. After I tried the product, I had some stomach problems with the NMN and TMG. I contacted them after 3 days and explained this to them and I received a reply from a Doctor to “ take the NMN with food and that I couldn’t return the product since it was opened. According to research that I have read, the NMN breaks down in stomach acid and so rendering most of it ineffective. So because their 100% guarantee means opened products can’t be returned, this doctor recommends taking when the stomach acids will neutralize most of the NMN because the stomach acids are the highest after we eat. FIND ANOTHER SUPPLIER FOR YOUR NMN.

Now you imply that I am attempting to take advantage of you when I am trying to get a fair result from my purchase. The research that I have read indicates taking NMN on an empty stomach provides the best bioavailability, as your recommendation on the label indicates. Your label states “ For best results, take 1 capsule on an empty stomach, preferably an hour before breakfast.” Now you are saying the opposite of your own label. Research has shown best bioavailability of NMN is with an empty stomach, LIPO technology is being researched and found to be effective on empty and with meals. Your ethics are questionable and you try to compare apples and oranges to justify your business practices. Personally I would rather deal with an ethical company. Hope potential customers realize how you conduct business and find more ethical suppliers. I have found a better source for NMN and other supplements. Hope this helps others avoid doing business with you and experiencing the poor service I received from you.

March 18, 2022
NMN Bio logo

Reply from NMN Bio

Dear Ernest,
All human clinical trials we are aware of have the participants taking NMN after breakfast. However, they are still showing efficacy in terms of increased insulin sensitivity, combating age-related muscle loss etc. If taking NMN after food was a problem, this wouldn't be implemented in human clinical trials, and trials would definitely not show efficacy. Our returns policy is on our website and it is the consumer's responsibility to read before purchasing. We are sorry you are sensitive to NMN, this is a rare side effect some people might experience. But if our returns policy was different, it would be hard to prevent people from exploiting it, and therefore much harder for us to run our business and provide high quality, 3rd party tested NMN to our customers. We hope that this makes sense!

Best regards,

The NMN Bio Team

Rated 5 out of 5 stars

I feel more energetic and youthful! Thank you!

My whole experience with NMN Bio has been fantastic. After I ordered my first batch of NMN and TMG, I emailed them with a few questions and received a personal and very prompt response. I've been taking NMN and TMG for about a month now and noticed the effects within days. I feel more energetic and youthful! Thank you!

March 14, 2022
Unprompted review
NMN Bio logo

Reply from NMN Bio

Dear Allie,
So glad to hear you had a great experience with NMN Bio.
Keep growing younger with us!

Warm regards,

The NMN Bio Team

Rated 5 out of 5 stars

I have been taking the NMN product from…

I have been taking the NMN product from this company for a month now. Started on the lowest dose. Began to feel I had slightly more energy in the mornings and often felt in a better frame of mind, more ready to get on with things. I also feel my joints are slightly less painful (I’m in an older age group). These effects, although small as yet, definitely do seem to be building. I combine this with some intermittent fasting and eating a fairly high fat/low carb diet, which seems to suit my metabolism and which I have been doing for a while.

To be fair, it’s hard to know exactly what has changed and why as yet but I’m impressed enough to have moved up the next level dose. I contacted the company about changing my subscription and couldn’t have received a more helpful, fast and friendly reply. I’m looking forward to seeing what a difference the new dose makes.

March 3, 2022
Unprompted review
NMN Bio logo

Reply from NMN Bio

Hi Sue,
Great to hear you are enjoying your NMN!
Intermittent fasting and high fat/low carb diet are definitely beneficial for longevity too!

Keep being awesome!

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look