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Zelenko Labs

Z-Stack® was created by Dr. Zelenko, a licensed US physician, who personally treated thousands of individuals impacted by COVID and COVID-related illnesses.
Dr. Zelenko knew the critical importance that immune health plays in the overall wellness of the body.

His signature product 'Z-Stack' is intended to support the body’s natural immune health.

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

Dr. Zelenko

Dr. Zelenko graduated summa cum laude with a B.A. degree and 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. Shortly thereafter, Dr. Zelenko took up family medicine in New York’s Hudson Valley. He was described by his patients as a 'family member' to thousands, 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 including How to Decapitate the Serpent.

Our Affiliates

Our affiliates are part of a rapidly growing movement of physicians, bloggers, podcasters and social media influencers. If you have a network of like-minded individuals and are motivated to spread the Zelenko legacy, then our program is for you!


The Z-Stack affiliate program is straightforward and easy to promote. Receive a 15% commission for every sale made through your affiliate link. You are free to promote products on social media, your personal website, newsletters, or podcasts.


Utilize your personal affiliate portal to track your sales, commissions and payouts. Download media assets, marketing materials and learn more about the Zelenko product line to help you succeed in your promotional efforts. Join the Zelenko family today!


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