Z-Stack Immunity Bundle
Z-Stack and Z-Night – The Ultimate Immunity Bundle
The ultimate bundle to support your immunity – day and night.
Defend your natural immunity by day, and sleep better at night.
Buy one bottle of Dr Zelenko's original Z-Stack™ for the ultimate in daily immune support and get a second bottle of our all-natural sleep formulation Z-Night™ for FREE when you subscribe.
Trusted by over 200,000 customers for a healthier, better-rested you.
THE ULTIMATE IMMUNITY BUNDLE
Defend your natural immunity by day, and sleep better at night.
Buy one bottle of Dr Zelenko's original Z-Stack™ for the ultimate in daily immune support and get a second bottle of our all-natural sleep formulation Z-Night™ for FREE!
Trusted by over 200,000 customers for a healthier, better-rested you.
Boost your immune system naturally with Z-Stack's science-based formula.
Each Z-Stack™ capsule contains ingredients selected through the extensive research and expertise of Dr. Zelenko, and were chosen for their natural ability to support your immune system and enhance your body’s defenses.
The natural ingredients in Z-Stack
- Quercetin Dihydrate
- Vitamin C
- Vitamin D3
- Zinc
Discover Dr. Zelenko’s premier immunity supplement, Z-Stack™.
Take it daily for an extra boost of immune support when you need it most—every day.
Z-Stack’s™ ingredients—vitamin C, vitamin D, zinc, and quercetin—work synergistically to enhance absorption and promote healthy cellular function.
A restful night’s sleep rejuvenates your immune system.
Z-Night™ is formulated to naturally support your body’s sleep cycle, free from melatonin or synthetic drugs. Quality sleep is vital for immune health, which is why we’re including Z-Night™ FREE in the Ultimate Immunity Bundle.
The natural ingredients in Z-Night™
- Magnesium Glycinate
- Magnesium Citrate
- GABA
- L-Theanine
- L-5 HTP
- Liposomal Banaba Leaf Extract
- Lemon Balm Powder
- Apigenin
- Hops Flower Extract
- Passion Flower Extract
Unlock restful sleep and a stronger immune system with Z-Night™. Bid farewell to sleepless nights and welcome rejuvenating rest that leaves you refreshed, energized, and ready to tackle each day.
Our vitamins are:
Kosher Certified
GMP Certified
Made in the USA
We ensure the quality of our formula through certifications, including GMP and Kosher.
Dr. Zelenko knew the importance sleep plays on your immunity.
Each product from Zelenko Labs was built from Dr. Zev Zelenko's critical research into natural immunity.
To this day, the same team which built Z-Stack continues Dr. Zelenko's legacy with uniquely-designed natural solutions to modern-day living, including this bundle of Z-Stack and Z-Night.
