I mistakenly took two in the morning and two at night 😳 for the summer my blood work in the fall was lower sugar better cholesterol and my eye sight was improved . I am now taking the proper amount o... Toon meer
We verifiëren geen specifieke claims omdat reviewers hun eigen mening mogen geven. We kunnen reviews echter wel als 'Geverifieerd' bestempelen als we bevestiging hebben dat er een zakelijke interactie heeft plaatsgevonden. Meer informatie
Om de integriteit van het platform te beschermen, wordt elke review op ons platform – al dan niet geverifieerd – gescreend door onze geautomatiseerde software. Deze software kan inhoud identificeren en verwijderen die in strijd is met onze richtlijnen, inclusief reviews die niet zijn gebaseerd op een echte ervaring. We zijn ons ervan bewust dat we weleens wat over het hoofd zien, dus je kunt altijd reviews rapporteren waarvan je denkt dat we ze hebben gemist Meer informatie
Lees wat reviewers zeggen
The product is great, but I've had to cut back my budget and can't afford the subscription any more. I've tried multiple times to cancel my subscription but once I hit the button to cancel it just spi... Toon meer
It is my recommendation that anybody over 40 years of age starts supplementing with NMN, it has been proven to boost the NAD molecule which is responsible for all energy production in our body. This i... Toon meer
I never write reviews, but these products are worth one. I ordered the nmn + Spermidine combo without expecting anything crazy, let me tell you how wrong I was. My skin, visibly smoother, my energy le... Toon meer
Bedrijfsgegevens
Geschreven door het bedrijf
Trusted by over 352,000 longevity enthusiasts – MASI offers German-made, Swiss-tested NMN, Resveratrol, Spermidine, and Fisetin crafted to the highest anti-aging standards. Every supplement is produced in a state-of-the-art facility in Germany using raw materials sourced exclusively from top-tier German suppliers – never from China or India. Each batch is independently tested in Switzerland to ensure exceptional purity, safety, and potency.
The MASI Guarantee
German-made, Swiss-tested supplements crafted to the highest European standards.
Contactgegevens
Zwitserland
- info@masi.eu
- masi.eu
Vraagt klanten om een review
Dit bedrijf nodigt klanten uit om een review achter te laten. Deze mag zowel positief als negatief zijn.
Heeft nog niet op negatieve reviews gereageerd
Zo gebruikt dit bedrijf Trustpilot
Ontdek hoe ze hun reviews verzamelen, beoordelen en modereren.
Will not get delivered!!!!
I ordered $438.37 of products on September 13th and only received 2 of the products. I ordered Resveratrol Premium NWN which I finally received on September 30th and I also ordered the Premium Hair Complex which is still not here. I have emailed the company 3-4 times and said it should be here on October 17th. This is poor delivery system. You have to pay $35 for 5-7 day delivery but it’s been over a month and a half. Will I get my package or not? 🤷♀️
Good customer care
My first impression wasn't great due to a minor issue in the order and I was braced for the back and forth with the company. Instead, support acknowledged their mistake, explained what happened and sent me a replacement as well as a gift pack for the misunderstanding. The follow up email they sent sealed it for me. I'm more impressed by how companies deal with issues rather than perfection.
They earned my trust the right way, and this is the company I'll be staying with.
Excellent Supplements
This is the only longevity company that I feel 100% safe with when taking their products. The batch testing results are very easily accessible for each batch which shows their quality control is always up to date. Highly recommend their products and I will be buying again. Lukas S
Quality ingredients but pricey
MASI supplements are very high quality which you can already tell just from their packaging, I just wish they were more affordable. No other complaints, the supplements work.
Love this company and mission
I really appreciate MASI and their entire line of great products for the anti-aging community. The products feel premium to touch and take, in my late 40s and starting their supplementation cycle made me feel as if my life was still ahead of me rather than behind.
Special thank you to Gabriel who was very kind and to the rest of the team 5 stars
Up to the mark supplements
After tracking my bloodwork for three months on NMN and TMG, NAD+ markers improved which resulted in around a 10% increase in endurance for my cardio sessions. Combining this with intermittent fasting gives visible results that shine outside of paper, you can tell these compounds actually do something metabolically meaningful.
Long term customer
I have bought Masi NMN and Fisetin several time. They really made a difference. Honestly, I did not believe their claims when I bought them first.
But what can I say… I feel just great, even my allergies are gone. What about that?
Masi, you got a long term customer.
Just please, give some discounts
Actually I was surprised with the quality
Actually I was surprised with the quality of Masi supplements. Yes, they are not cheap, but this is what quality is about. German quality did not let me down.
Bottles and packaging are so beautiful.
Most important, I feel the difference.
Thanks Masi. Congrats!
Catastrophic fulfillment; Poor support
Can’t comply with import regulations. Collected money in August. Still haven’t delivered product in mid-October. Only updates I am getting are prompted by my inquiries.
For me it did not seem to work
For me it did not seem to work. Took for several months last Spring and during that time developed an aggressive form of anal cancer. Ended up in a 12 hour surgery and a colostomy. Maybe if I had started it sooner it might have made a difference.
GREAT product but an ecological…
GREAT product but an ecological disaster.
Each jar is made of thick glass and plastic. Do you have any idea how long that jar will sit in the garbage dump for ????
I am surprised MASI is so ENVIRONMENTALLY UNFRIENDLY.
The product is excellent and the product container is a nightmare.
Please change your ways immediately.
Thx,
Dean
Inadequate communication
I have written a question to the e-mail address provided on the website, stating that I have chosen an annual subscription to NMN supplements in April 2025. According to the information published on the official website product should cost 152.57 EUR. Over the course of three months, 185 EUR was deducted from my account each time.
I would like to know what the difference of 28.43 EUR is, are the shipping services the same?
However, I have not received any difference in the letter I submitted and 185 EUR is still being deducted from my account. Therefore, I am dissatisfied and am considering terminating the agreement, although the product is suitable and I like it.
Not worth the high price.
I have been using these products for over 3 months. They are not providing any better results than the much cheaper version I was previously using. Also, most subscription services alert you prior to sending the next shipment so you can make any adjustments. Thus one does not.
I would like to discontinue this product.
I would like to discontinue this product as I think it is too pricey for no more than I get. Not the quantity but the ingredients.
I did NOT order this again
I did NOT order this again. I did not like the way they taste. Why did you charge me again? Return my money and do not send me this again.
This Is A Happy Customer Here!
The Masi Longevity and Reservatrol products are of great quality. I am in my 60’s, and have felt a difference within the month of taking each one. I feel more clarity, focus, and much sharper! My skin even feels different in a positive way!
What makes my experience great is the customer service. I wanted to get my monthly subscription earlier every month, and the following month it was done! There was no back and forth e mails trying to get what I needed! This is a prideful company, and a company I want to deal with!

Antwoord van MASI Longevity Science
Dit is Trustpilot
Iedereen kan een review op Trustpilot achterlaten n.a.v. een ervaring met een bedrijf. Gebruikers hebben het recht om hun feedback op elk moment te wijzigen of te verwijderen, en elke gepubliceerde review is zichtbaar zolang het account van de betreffende gebruiker actief is.
Bedrijven kunnen reviews verzamelen via geautomatiseerde uitnodigingen. Deze reviews worden als geverifieerd bestempeld, omdat het evident is dat ze op echte ervaringen gebaseerd zijn.
Lees meer over geverifieerde reviews.
Wij beveiligen ons platform met behulp van toegewijde specialisten en slimme technologieën. Lees meer over hoe wij nepreviews bestrijden.
Lees meer over Trustpilots reviewproces.
Hier vind je 8 tips voor het schrijven van een goede review.
Verificatie helpt ervoor te zorgen dat echte mensen de reviews schrijven die je op Trustpilot ziet staan.
Beloningen aanbieden voor reviews of een slechts een bepaalde groep mensen vragen om een review te schrijven, kan de TrustScore beïnvloeden. Dit is in strijd met onze richtlijnen.







