Make Your Immune System Clean, Resilient, and Resistant
Your immune system can be weakened by over 300 different primary immunodeficiency disorders, poor diet, lack of sleep, and adverse reactions to various vaccines.
Z-Stack ™ Kids Z-Stack ™ Z-DTox ™
Made in the USA
We ensure the quality of our formula through various
certifications such as GMP and Kosher.
This product is also proudly made in America. Shop Kosher Vitamins!
An Immune System Formula
Developed by Dr. Zelenko
Vladimir Zelenko MD is a board certified physician in New York.
He has provided counsel to White House personnel, governments on four different continents,
hospitals, physicians, celebrities and nursing homes. Learn More About Dr.Zelenko
2 Capsules Per Day
Boosted Immune System
Science Based Formula
Using Natural Vitamins
Formulated by Dr.Zelenko
Support Your Immune Function
Brand / Zelenko Labs
Product / Z-Stack™
Formulated By / Dr. Zelenko
Function / Maximize Immune Function
Suggested Use / 2 Capsules per Day
Bottle Size / 60 Capsules
Ingredients / Zinc, Quercetin, Vitamin C, Vitamin D
Certifications / Kosher, GMP
Manufactured In / United States
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