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Immunity Support

Z-Flu™

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$55.00 $55.00

One-Time Purchase

$55.00

📚 BUY TWO, GET ONE FREE! Z-FLU™ & KIDS Z-STACK® 📚

Z-Flu™ is perfect for people who:

✔ Want extra immune support during seasonal challenges
✔ Like to keep immune support on hand when they need it
✔ Spend time around schools, workplaces, or crowded environments
✔ Prefer an easy-to-take gummy formula
✔ Want targeted immune support alongside their daily wellness routine

Boost your immune system with Z-Flu™, an all-natural, doctor-formulated supplement created by Dr. Zelenko. Clinically dosed to support your body’s natural defenses during flu season and year-round, Z-Flu™ delivers a powerful blend of essential vitamins and nutrients to help maintain immune function and overall wellness.

Whether you’re looking to strengthen your daily immune support or stay prepared during seasonal challenges, Z-Flu™ provides targeted nutritional support to help you stay healthy and resilient year-round.

As a dietary supplement, ages 4-8 take one (1) gummy daily with food and ages 9+ take two (2) gummies daily with food or as directed by a healthcare provider.

For 4-8 years of age:
Vitamin C (as ascorbic acid) 100 mg, Vitamin D3 (as Cholecalciferol) 2000 IU, Zinc (as Zinc Gluconate) 3 mg, European Elderberry Fruit Extract 65:1 (Saumbucus Nigra) 30 mg, Quercetin 50 mg

For 9+ years of age:
Vitamin C (as ascorbic acid) 200 mg, Vitamin D3 (as Cholecalciferol) 4000 IU, Zinc (as Zinc Gluconate) 6 mg, European Elderberry Fruit Extract 65:1 (Saumbucus Nigra) 60 mg, Quercetin 100 mg

Subscribing monthly means more than convenience and savings – it’s joining an exclusive community committed to proactive health.

Enjoy special savings, priority access, automatic delivery, and subscriber-only health content designed to keep you informed and ahead.

Clinically Proven

Z-Flu™ Key Ingredients

The carefully selected ingredients in Z-Flu™– Vitamin C, Vitamin D3, Zinc, Quercetin and bio-available Elderberry – work in harmony to enhance each other’s absorption, promoting optimal immune support, healthy cellular function and help fend off illness.

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

Vitamin D3 has been shown to increase intestinal calcium and phosphate absorption, helping maintain strong bones.

Quercetin supports a healthy inflammatory response and functions as a zinc ionophore, helping shuttle zinc into cells so your body can better absorb and utilize it.

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

Elderberry is packed with antioxidants, and elderberry may support the immune system and help fend off illness.
The raw ingredients in Z-Flu The raw ingredients in Z-Flu
The raw ingredients in Z-Flu

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

Quercetin supports a healthy inflammatory response and functions as a zinc ionophore, helping shuttle zinc into cells so your body can better absorb and utilize it.

Vitamin D3 has been shown to increase intestinal calcium and phosphate absorption, helping maintain strong bones.

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

Elderberry is packed with antioxidants, elderberry may support the immune system and help fend of illness.

Z-Flu™ vs the Alternative

High-end quality, fewer pills, and better value. Z-Flu™ combines multiple essential supplements into a single, clinically dosed, and convenient formula.

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Supports Strong, Daily Immune Defense

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Promotes a Balanced Immune Response

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Helps Your Body Defend Against Seasonal Threats

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Doctor-Formulated & Clinically Dosed

Z-Flu bottle
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VITAMIN C

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$15 - $25

QUERCITEN

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$25 - $45

VITAMIN D3

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$15 - $30

ZINC

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$15 - $25

ELDERBERRY

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$15 - $28

TOTAL (USD):

$55

$85 - $153

Questions Customers Ask Most

Z-Flu™ is a physician-formulated immune support supplement developed by Dr. Vladimir Zelenko. While Z-Stack® is designed for daily immune maintenance, Z-Flu™ is a more targeted formula commonly used during seasonal challenges or when symptoms begin, helping support the body’s natural response and recovery.

Z-Flu™ is often taken at the first sign of seasonal symptoms or during times of increased immune stress, such as travel or colder months. It can also be used proactively when you want extra immune support beyond your daily routine.

Z-Flu™combines a physician-formulated approach with key immune-supporting nutrients and elderberry, a powerful antioxidant traditionally used to support the body during cold and flu season. Its gummy format also makes it convenient and easy to take compared to capsules or tablets.

Z-Flu™ is designed for adults and children ages 4 and up who want targeted immune support during seasonal challenges. It’s especially helpful during periods of increased stress, travel, or exposure, when maintaining strong immune resilience is important.

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Trusted Wellness, Real Feedback

"Boosting my immune system with Z-Flu has been highly beneficial. I haven’t been sick for over two years. I faithfully use Z-Flu, Z-Stack and Z-Detox supplements."

Denise V. 🇺🇸

"I was excited to get my next order of ZFlu gummies as I had just finished my last bottle. no flu shots for us…just relying on these gummies to get us through flu season."

Pamela J. 🇺🇸

"Z-flu is a superior product. I’ve been using it for about 3 years and I haven’t been sick one day since. I’m 77 years old and a non-vaccinated person ever since Covid. I faithfully took flu vaccine shots prior to Covid, but I don’t want or need them anymore. All of Dr. Zelenko’s products are healthy additions with positive results. God bless Dr. Zelenko."

Denise V. 🇺🇸