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As an Affiliate with Z-Stack®, you will earn up to 15% commission on all sales referred through your links – and get first look at new products!

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Our Products

Company Overview

Z-Stack® was created by Dr. Zelenko, a licensed US physician, who has personally treated thousands of individuals impacted by Covid and Covid-related illnesses.

This product is intended to enhance the body’s natural ability to boost
its overall immune system and health and can aid in the early treatment protocol.

Z-Stack® has been scientifically formulated for best results and is kosher and GMP certified and produced in the USA.

Z-Stack® Vitamins

About Dr. Vladimir Zelenko:

Dr. Zelenko graduated summa cum laude with a B.A. degree with high honors in Chemistry from Hofstra University. After receiving an academic scholarship to attend S.U.N.Y. at Buffalo School of Medicine, he earned his M.D. degree in May 2000. Dr. Zelenko completed his family medicine residency at South Nassau Communities Hospital in Oceanside, N.Y. in May 2004. Since then, Dr. Zelenko has practiced family medicine in New York’s Hudson Valley. He has been described by his patients as a family member to thousands of families, and was a medical adviser to the volunteer ambulance corps in Kiryas Joel, New York.
Dr. Zelenko, an observant orthodox Jew, was married with 8 children, and has authored three books called Metamorphosis, Essence to Essence and How to Decapitate the Serpent.


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