MASI Longevity Science Avis 57

TrustScore 4 sur 5

4,2

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Lisez les avis des autres

Noté 1 sur 5 étoiles

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... Voir plus

Noté 5 sur 5 étoiles

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... Voir plus

Noté 5 sur 5 étoiles

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... Voir plus

Noté 5 sur 5 étoiles

I had a very good experience because the product arrive on time and it was easy to order. I am a 75 year old woman and I don't have any specific obvious improvements that I can convey, but I don't fee... Voir plus

À propos de l'entreprise

  1. Magasin de vitamines et compléments alimentaires
  2. Boutique de santé et beauté

Écrit par l'entreprise

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.

Coordonnées de contact

4,2

Bien

TrustScore 4 sur 5

57 avis

5 étoiles
4 étoiles
3 étoiles
2 étoiles
1 étoile

N'a pas répondu aux avis négatifs

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Noté 5 sur 5 étoiles

5 STARRR

I started using the NMN Spermidine combo without expecting anything dramatic and I’ve been genuinely impressed by the results. My energy feels a lot more consistent throughout the day without any crashes, and I’ve noticed a visible improvement in my skin as well, no more breakouts !!

19 janvier 2026
Avis spontané
Noté 5 sur 5 étoiles

Very Good Product

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 levels, steady with no crashes, even with caffeine. The price is steep but when constant focus is still required at my age this is a no brainer. I'm heavily into nootropics but these 2 by far were the biggest game changers for me, very impressed.

26 décembre 2025
Avis spontané
Noté 5 sur 5 étoiles

I am very satisfied with my order

I am very satisfied with my order, I ordered all 4. After the first couple of days I already felt a difference in my energy levels and overall clarity of mind, as you keep taking them the effect stacks up. Better than other brands that I tried

11 décembre 2025
Avis spontané
Noté 5 sur 5 étoiles

The best NMN hands down

The best NMN hands down. I use their full stack. I'm 37 and now is the time to start. Combine this with a good diet and exercise and you're going to feel amazing.

18 décembre 2025
Avis spontané
Noté 5 sur 5 étoiles

I don't feel 75

I had a very good experience because the product arrive on time and it was easy to order. I am a 75 year old woman and I don't have any specific obvious improvements that I can convey, but I don't feel 75 at all. I have an active life, that includes weight lifting three days a week and cardiovascular work-outs three times a week. I have problems with my knees that prevent me from walking even 3 miles, but maybe I would be worst without MASI pills

18 décembre 2025
Noté 5 sur 5 étoiles

There is no question that this product…

There is no question that this product is working in many ways and not just visual, even though that is what everyone is talking about , I not just look younger ( I've been asked my age a couple of times lately, I become 62 on New Years Eve and the respond ranges from " ohh you can't see that , to one who stopped dead in his tracks because he was younger but looked a lot older ), I also feel younger physically, it's a product that will prove itself over time, I recommend that people try it and make their own experiences, as for myself, I look forward to taking them every morning.
But I think they should find a different way of storing them instead of these ( very heavy ) glass jars

1 décembre 2025
Noté 5 sur 5 étoiles

The subscription is great

The subscription is great, my supplements come every month like clockwork, and I don’t have to do a thing. So easy!
Nmn is super premium. I am feeling much better every day

1 octobre 2025
Avis spontané
Noté 5 sur 5 étoiles

So far so good

So far so good. I am using Masi for more than a year. I feel much better. Expensive, but worth it

13 novembre 2025
Avis spontané
Noté 5 sur 5 étoiles

Vitality Boost

I absolutely love MASI, especially the Premium NMN! I feel noticeably more energetic, focused, and alive.

28 octobre 2025
Avis spontané
Noté 5 sur 5 étoiles

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.

27 octobre 2025
Avis spontané
Noté 1 sur 5 étoiles

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? 🤷‍♀️

14 septembre 2025
Noté 5 sur 5 étoiles

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.

20 octobre 2025
Avis spontané
Noté 5 sur 5 étoiles

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

20 octobre 2025
Avis spontané
Noté 4 sur 5 étoiles

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.

19 octobre 2025
Avis spontané

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