Boost your immune system naturally with Z-Stack's science-based formula.

The ingredients in each capsule of Z-Stack weren't chosen by Big Pharma – they were chosen from famed Dr. Zev Zelenko's in-depth research for their natural ability to help support your immune system and body's natural defenses.

Explore the all-natural ingredients in Z-Stack

Quercetin

Quercetin may promote a healthy inflammatory response. This nutrient may help your body better absorb and utilize vital nutrients like Vitamin C.

Vitamin C

Vitamin C has been shown to play a complex, protective role against toxic compounds formed from oxidized lipids and may support overall immune health.

Vitamin D3

Vitamin D has been shown to increase intestinal calcium and phosphate absorption.

Zinc

Zinc is a nutrient found throughout your body that may support your immune system and metabolic function.

Experience Dr. Zelenko's premier immunity supplemement. Use Z-Stack for daily for that extra boost of immune support when you need it most – every day.

The ingredients in Z-Stack – Vitamin C, D, Zinc, and Quercetin – work synergestically to maximize absorption of each other and support healthy cellular activity.

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$55.00 (a $110 value)

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A good night's rest reboots your body's immune system.

Z-Night was designed to support your body's sleep naturally, without harmful hormones like melatonin or artificial drugs. Sleep is imperative for a healthy immune system, which is why we're bundling it for FREE to create the Ultimate Immunity Bundle.

Explore the natural ingredients in Z-Night

Tryptophan

This essential amino acid – famous for inducing post-Thanksgiving drowsiness – serves as a precursor to melatonin. It has been shown to play a crucial role in regulating both mood and sleep, supporting a more peaceful slumber.

GABA

With its unique properties, GABA may actively reduce the time it takes to fall asleep. By calming your body's nerve responses to the brain, GABA may help support a state of relaxation, allowing your mind to disconnect and unwind.

Magneium

As an essential mineral, magnesium may help boost melatonin levels, which may improve the quality and duration of your precious sleep.

Rutaecarpine

This remarkable natural compound may boost the breakdown and excretion of caffeine, supporting an efficient detoxification process.

Chamomile

Embrace the soothing effects of chamomile – the gentle flower often known for its presence in many "sleepy-time" teas. Acting as a natural sedative, chamomile aids in relaxation which may lead to improved quality and length of sleep.

Hops

Hops may be considered a natural sedative that may help you achieve a longer and more restful sleep.

Passion Flower

Passion Flower is known for its calming effects and may help promote restful sleep.

Valerian Root

Valerian Root may ease restlessness which may help reduce the amount of time it takes to fall asleep.

Experience the secret to a night of blissful rest – and a stronger immune system. Say goodbye to sleepless nights and embrace a rejuvenating slumber that leaves you refreshed and ready to conquer each day with vitality and vigor.

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$55.00 (a $110 value)

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WRAPTRY is trusted by more than 200,000 satisfied customers.

  • Kelly I.

    I found Dr. Zelenko in the beginning of the pandemic and he gave me strength to walk through the pandemic.

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    Mar 07, 2024

  • Jimmy

    I have suffered from insomnia for 5 years. Tried everything!! I lost hope and wanted to give this a shot. Wow!

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    Feb 13, 2024

  • Lucinda K.

    I take everyday. And never got covid or anything, but it actually got rid of my heartburn. Wow..

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    Feb 03, 2024

  • David F.

    Great product. I've given it to many people suffering with Covid and they all felt quite a bit better in 2-3 days.

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    Jan 24, 2024

  • Jacqui N.

    By far the best fast acting protocol out there! All the essentials in one capsule! have Z-Stack, Z-sleep

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    Jan 16, 2024

  • Dale K.

    Highly recommend!! We have been healthier since taking Z-Stack!!

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    Nov 15, 2024

Our vitamins are:

  • Kosher Certified
  • GMP Certified
  • Made in the USA

We ensure the quality of our formula through certifications, including GMP and Kosher.

The WRAPTRY Way

  • Fast shipping on all orders

    All Zelenko products feature fast shipping on all orders because we know how important it is to stay healthy.

  • Quality guaranteed

    Dr. Zelenko built his legacy on the same products that bear his name to this day. Zelenko Labs stands behind its products with a 100% satisfaction guarantee.

  • Kosher, vegetarian, and gluten-free

    Z-Sleep was formulated to be safe, healthy, and taken by people from all walks of life.
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