Z-STACKReviews of zstacklife.com

I had not gotten my order after 2 weeks time. I was sent a replacement right away. Thank you! Also, this product-Z-Stack has been fantastic in maintaining immune system. I have been taking it for years and have not gotten sick for a long time. No yearly cold or flu like many acquaintances. Highly recommended.

I am very fortunate to have found Dr Zelenko’s vitamins. At 80 years old, I have been able to stay well and have not suffered even one Covid event. I attribute my good health to Dr. Zelenko’s vitamins.

I had a fast and great response to my issue that was quickly resolved. I am so thankful! Pam

I get the kids gummies for my children and end up stealing some for myself

Been using Z-Stack and Z-Night and really like both. Z-Stack feels like solid daily support, and Z-Night helps me relax and sleep better without feeling groggy. Clean formulas, all natural, brand I trust. Would recommend.

Zstacklife has been full of contradictions, gaslighting and evasive customer service. They sent my shipment confirmation at 1:16 PM, only a few hours before closing. I didn’t see it until after they were closed, and when I called the next morning, they said it had already shipped and refused to cancel. When I brought up the late confirmation, the rep denied the timing despite the clear timestamp. When I emailed support with the screenshot, they dodged the issue entirely and blamed a credit card problem that wasn’t even relevant. My online account also marked the order as “Ready for pickup,” which is odd for an online-only business. The most concerning part? Instead of addressing my questions or correcting the issue, the company cancelled my subscriptions. A transaction like this is akin to a toddler throwing a tantrum, but a health company to shut down the conversation rather than resolve it is inexcusable. This is extremely toxic, dismissive, and unprofessional.

I've been taking Z-Stack for close to 4 years and have not been sick one day since I started taking it. I am 72 years old, and full time daycare for a granddaughter in school so the germs do come home, but she also has not been sick since she started taking the Kid's Z-Spike gummies. I DO NOT understand all the bad reviews unless they are bots or angry people in general. I have needed to contact customer service MANY times and always (during business hours) get a live person with NO foreign accent, and they are always more than helpful! For those who are having problems with customer service, perhaps you're calling a wrong number. Their customer service # is 800-935-3656 and I NEVER have an issue with getting a wonderful representative. The product itself is a godsend. Miraculous to NEVER get sick at 72 years old in the 4 years I've been taking it. IGNORE BAD REVIEWS! Not true!

Couldn’t tell if this product helped or not with immunity issues. What I can say is that if you get a subscription, it’s not that easy to stop it. It is common these days I guess to get no customer service and finding a place to submit a request or complaint is a lot of fun. I have combined bottles to make room in my cabinet but still have seven bottles… when you think you have cancelled … guess again.