MASI Longevity Science Recensioni 

60
TrustScore 4 su 5

4,1

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Valutata 5 stelle su 5

We are always excited to place an order with the amazing team at Masi, they are very prompt, attentive and are always willing to do whatever it takes to deliver their anazing supplements to us!! Th... Leggi di più

Valutata 5 stelle su 5

Absolute best products on the market today! I’ve seen nothing but great results since I’ve been taking these products. Great customer support as well.

Valutata 5 stelle su 5

I love my Masi supplements and have been taking them for more than a year.I just had an amazing physical.My doctor was blown away by my test results

Valutata 1 stelle su 5

I would give zero. I had bought the gift for my wife expecting her to enjoy as it was already second by without any visibal effet, but believing that maybe after some tim ether will be some positive e... Leggi di più

Dettagli dell'azienda

  1. Negozio di vitamine e integratori
  2. Negozio di prodotti di bellezza e per il benessere

Scritti dall'azienda

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.

We use only premium European-sourced ingredients – never from China or India. Every product is vegan, non-GMO, and free from fillers, allergens, gluten, and lactose. Pharma-grade quality. No shortcuts.

Informazioni di contatto

4,1

Molto buono

TrustScore 4 su 5

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4,1

Tutte le recensioni

(60)

53 recensioni negli ultimi 12 mesi

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Valutata 5 stelle su 5

We are always excited to place an order…

We are always excited to place an order with the amazing team at Masi, they are very prompt, attentive and are always willing to do whatever it takes to deliver their anazing supplements to us!! Thank you VERY much team Masi!! We look forward to our next shipment!! Best regards,
Chris & Maria Herrington
Orange County California

14 agosto 2026
Non scritta su invito
Valutata 5 stelle su 5

Quality, Service, Communication

Third party testing. Independent reviews backing up statements and claims of purity. Service. Ships on time. Arrives on time. This in spite of torturous journey from manufacture to third party testing to customer.
Five stars!

20 aprile 2026
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Risposta di MASI Longevity Science

Thank you for your support!

Valutata 3 stelle su 5

I cannot assess the real benefit vs

I cannot assess the real benefit vs. price. Moreover, as I also have to take other substances ( selenium, zinc, magnesium, Vitamin B and D3) to support my tyroid, I fear that I take these substances twice.

5 marzo 2026
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Risposta di MASI Longevity Science

Here is a professional and reassuring reply:

Thank you for sharing your concerns. We understand that it can be difficult to assess the value when several supplements are taken at the same time. Clinical research suggests that at least three months of consistent use may be needed before the potential benefits can be properly evaluated.

To avoid taking overlapping nutrients, we recommend comparing the ingredient amounts on each product label and discussing your full supplement routine with your doctor, especially when supporting a thyroid condition.

Valutata 1 stelle su 5

FedEx dumped my order in the driveway…

FedEx dumped my order in the driveway where my dogs were. I lost half my order since they opened the box and ate 2 bags. Fedex failed to put my order in the designated box as always done in the

12 marzo 2026
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Risposta di MASI Longevity Science

We’re very sorry this happened. Your order should have been left in the designated delivery box, not in the driveway. Please contact us at info@masi.eu with your order number so we can investigate this with FedEx and find a solution for the damaged items.

As your dogs may have consumed some of the supplements, please contact your veterinarian as soon as possible and share the product names and estimated amounts they may have eaten.

Valutata 5 stelle su 5

One of the best products on the market

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.

17 febbraio 2026
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Risposta di MASI Longevity Science

Thank you so much for your kind words and continued trust in MASI. We are delighted to hear that you are happy with both the product quality and our customer service. Your support truly means a lot to our entire team.

Valutata 3 stelle su 5

The product is great, but.....

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 spins and never cancels. I'd give it more stars but I'm frustrated.

17 maggio 2026
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Risposta di MASI Longevity Science

Thank you for your honest feedback, and we’re sorry for the frustration this has caused. Cancelling your subscription should be simple and should not leave you stuck on a loading screen.

Valutata 1 stelle su 5

Product is great

Product is great, but took months to arrive if it even cleared customs at all I got a call from FedEx telling me * have to sign special customs forms to clear it for delivery? No thanks

13 febbraio 2026
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Risposta di MASI Longevity Science

Thank you for your feedback. We’re glad to hear that you liked the product, but we’re very sorry about the delivery and customs experience.

Your case was resolved and the order was fully refunded. MASI prepays applicable taxes and duties and works closely with FedEx and US Customs, but unfortunately, customs may still occasionally request additional documentation from the recipient. We understand how frustrating this was and sincerely apologize for the inconvenience.

Valutata 5 stelle su 5

I mistakenly took two in the morning…

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 one morning and one at night but hmmmmmm

12 febbraio 2026
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Risposta di MASI Longevity Science

Thank you for sharing your experience! We’re delighted to hear about the improvements in your blood sugar, cholesterol, and eyesight. Those are wonderful results.

Please continue with the recommended dosage of one capsule in the morning and one in the evening. Many customers also combine NMN with Resveratrol as part of their longevity routine, as NMN supports cellular energy while Resveratrol provides additional antioxidant and healthy-aging support.

We truly appreciate your trust in MASI!

Valutata 5 stelle su 5

Excelente producto

Excelente producto

7 maggio 2026
Non scritta su invito
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Risposta di MASI Longevity Science

¡Muchas gracias por compartir su experiencia! Nos alegra saber que está satisfecho con el producto y agradecemos sinceramente su confianza en MASI.

Valutata 5 stelle su 5

Loving it!!!!

Good products. Both me and my husband have been on the MASI regimen and we are not going back to living without them.

MASI should improve their shipping times but it's not a dealbreaker for the quality that you are getting.

10 aprile 2026
Non scritta su invito
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Risposta di MASI Longevity Science

Thank you so much for sharing your experience! We’re delighted that both you and your husband are enjoying your MASI regimen and experiencing the quality of our products.

We also truly appreciate your feedback regarding shipping times. We are continuously working with our delivery partners to make the experience faster and smoother. Thank you for your patience and continued trust in MASI!

Valutata 1 stelle su 5

I would give zero

I would give zero. I had bought the gift for my wife expecting her to enjoy as it was already second by without any visibal effet, but believing that maybe after some tim ether will be some positive effect. When she opened the box, carton inside was crubled, as if someone had already opened the box before her. After few days of trying to use it she told me taht I feeel very bad like usežing someone had used it already. I have photos beu I do not have time tio waste, I was planning to buy for her more things from Masi, but after this experience it's absolutelly disappointing

19 dicembre 2025
Valutata 5 stelle su 5

A real Supplement

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 is something that naturally declines with age so supplementing with its pre cursor which is NMN works to lower your biological age in return. You can still get younger as you get older and that's fascinating. Great efforts from MASI brand, highest quality I've tested.

6 marzo 2026
Non scritta su invito

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