4 powerful immune boosters - one small capsule

  • Vitamin C is an essential nutrient for healthy immune system response, helping your body fight off illness-causeing viruses and bacteria.

  • Vitamin D3 arms your body against viruses and bacterial infections.

  • Zinc helps the body activate immune system.

  • Quercetin reduces inflammation and helps to strengthen immune system.

  • Made in the USA

  • Kosher Certified

  • GMP Certified

Customer reviews


Jan 18, 2022

Amazing package! We both take it daily and it works. We are dealing with chemotherapy and need all the protection we can get. I've recommended it to anyone and everyone. I post it regularly on my blog and let people know it's been very effective for us and our kids. We appreciate the information you share on the interviews you do. Keep it up and you're in our prayers daily for safety, strength and healing. God bless and thank you for all you've done for us. Doug & Deb


Jan 18, 2022

I am unvaccinated and work on a college campus so I’m exposed to hundreds of people every day. I’ve been required to test every week for over a year tested negative every time. I accredit these supplements from Dr Zelenko to my health and preventing me from being infected. Certainly being high risk I should have had covid by now, I am over 50, high cholesterol and over weight. However my husband) and 3 adult children have had covid recently and got very sick though they are much healthier overall than I am. But they don’t take these specific supplements. Dr Zelenko knows exactly what he is doing!!! It’s a safe and effective prophylaxis and I am grateful! Thank you Dr Zelenko for doing the research and helping people worldwide protecting and saving lives.


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