We started taking Z-stack a short time after COVID started. We continue to take them daily and feel this has helped us immensely over the years by avoiding colds, flu and even being exposed to covid.... Voir plus
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For three years Z-Stack ihas been an exceptional preventive against bacteria and virus both - takes me literally 15 minute to break an attack. It also seems to prevent Covid 19. No side effects at all... Voir plus
L'entreprise a répondu
I have taken Z Stack since 2021 and have not had a sick day in the time since. Never got Covid. Very good immune protection. (I added K2 to the regimen some time thereafter due to learning that this... Voir plus
L'entreprise a répondu
I have been taking Z-Stack for years. I know without s doubt it has helped me fight off colds and other ailments. Several years ago, I got COVID, even after taking 3 sticks(never again) but with all... Voir plus
L'entreprise a répondu
À propos de l'entreprise
Écrit par l'entreprise
Zelenko Labs, built on the legacy of Dr. Vladimir Zelenko, creates products with purpose, precision, and integrity. Every formulation is made with high-quality ingredients and consistent standards, so you can feel confident in what you’re using. Thoughtful, reliable, and principled — Zelenko Labs products are made for people who care about quality. Our All American customer service team is here to help Monday through Friday, 9 AM to 5 PM EST — just give us a call at 1-800-ZELENKO (1-800-935-3656) or email our team at support@zstacklife.com
Coordonnées de contact
Boca Raton , Etats-Unis
- 1-800-935-3656
- support@zstacklife.com
- zstacklife.com
Aucun historique récent de demande d’avis
Cette entreprise n’a pas récemment invité ses clients à l'évaluer, donc les avis ne sont peut-être pas représentatifs.
A répondu à 100 % de ses avis négatifs
Répond généralement dans un délai de plus d'un mois
Comment cette entreprise utilise Trustpilot
Découvrez comment les avis de l’entreprise sont collectés, notés et modérés.
WARNING: I payed on a credit card I rarely use…
I payed on a credit card I rarely use and after there were $2000 worth of fraud that occurred after my legit order with this company. Is this a scam going on? My credit card company took care of the fraudulent charges and sent me a new card. My order for a few bottles of Z-stack placed on Sept. 30th then I received an email on October 8th saying product was in the mail and now on October 28th product still has not been received. I have called the credit card company to dispute this charge.
I finally did receive the product after…
I finally did receive the product after 23 days. Of course I tried calling and emailing with no response. Supposedly they were waiting for a shipment to come in. There was no action till I contacted PayPal about the purchase. Then my item was shipped the next day. I don’t know about the quality yet but I know it comes highly recommended. I will give it a chance.
I want to add that I did receive the product and was sent an extra bottle. I’m going to give them another try. It certainly is easier taking it and only two pills rather than six or eight.
No customer communication
I ordered a product (order 12085) from them on 2nd September for posting to Australia. For some reason it did not leave USA but was returned to them by US Postal Service on 20th September.
I have sent 4 emails, left a message on their website and never received one reply.
In frustration I rang them on 4th October (3rd Oct US time) and they promised to re-post to me and let me know the new Tracking details by 7th October, still no advice received as at 10th Oct. They may have a good product but their customer relations service is non existent.
This is an excellent product
This is an excellent product. Just like in a Rolls Royce Car Dealer, if you can't afford to buy or don't even ask how much? Salesman will tell you, "you can't afford it so just leave..."..lol... You don't bad mouth Rolls Royce coz you can't afford it do you? you're already bias her so just sit down and don't say anything about it specially if you've never tried it and too cheap to spend $$ for your own health. Did you complain about Balance of Nature $69.95 a month with auto refill every 28 days as "preferred" to get the cheaper per bottle price? Just sit down dude. If its not for you, don't but it. It's very simple.
A+ Experience
Good product, high quality from a great source. Dr. Zelenko is a leader in his field
This site sells vitamins very expensively, and when posting review about the same, it does not appear.
These good people have a site where they do not publish genuinely made reviews of their product, pricing, service levels etc. - so I have chosen to report that particular fact about the site.
They charge an arm and a leg - which they are naturally free to do - but then when reporting that as a review, they do not post it. That is not genuine. I will indeed revise this statement here, if they start posting reviews honestly.
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