One of the best products on the market. Also, most importantly when you place an order that arrives in a timely manner. My opinion, this product is top tier with great Customer service.
Även om vi inte verifierar specifika påståenden eftersom omdömeslämnarnas åsikter är deras egna, kan vi märka omdömen med en ”verifierat”‑etikett ifall vi kan bekräfta att en företagsinteraktion har ägt rum. Läs mer
För att skydda plattformens integritet granskas både verifierade och overifierade omdömen av vår automatiserade programvara som är tillgänglig dygnet runt. Tekniken är utformad för att identifiera och ta bort innehåll som bryter mot våra riktlinjer, inklusive omdömen som inte är baserade på en äkta upplevelse. Vi är medvetna om att vi inte kan lägga märke till allt. Det går att flagga sådant som du tror att vi kan ha missat. Läs mer
Det här tycker kunderna
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... Se mer
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... Se mer
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... Se mer
Företagsinformation
Skrivet av företaget
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.
Kontaktuppgifter
Schweiz
- info@masi.eu
- masi.eu
Ber kunder att lämna omdömen
Detta företag bjuder in sina kunder att lämna omdömen – oavsett om de är positiva eller negativa
Har inte besvarat negativa omdömen
Så använder företaget Trustpilot
Se hur deras omdömen och betyg hämtas, betygsätts och modereras.
Huge Effect
Ever since taking nmn and spermidine my energy and endurance has exploded at work and in the gym right after, the energy does not cause a crash like caffeine and it lasts the entire day if you take it in the mornings. I love it and recommend.
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!

Svar från MASI Longevity Science
Detta är Trustpilot
Vem som helst får skriva ett omdöme på Trustpilot. Den som skriver ett omdöme äger sitt omdöme och detta innebär att personen i fråga kan redigera eller ta bort sitt omdöme när som helst. Omdömen finns kvar på Trustpilot sålänge omdömeslämnarens konto är aktivt.
Företag kan be sina kunder om omdömen via automatiska inbjudningar. Dessa omdömen markeras som verifierade för att visa att det handlar om verifierade upplevelser.
Läs mer om andra typer av omdömen.
Vi skyddar vår plattform med hjälp av dedikerade medarbetare och smart teknologi. Läs mer om hur vi bekämpar falska omdömen.
Läs mer om omdömesprocessen på Trustpilot.
Här är 8 tips på hur man kan skriva omdömen på bästa sätt.
Verifieringen hjälper till att säkerställa att det är riktiga människor som skriver omdömena som du läser på Trustpilot.
Att erbjuda belöningar för omdömen eller att bara be en viss grupp personer att skriva ett omdöme kan påverka företagets TrustScore. Detta strider mot våra riktlinjer.







