Natural Killers Cells
 Immunity Booster

Patented natural formula backed by 15 years of research done in oncology departments at leading hospitals and universities.

400% Increase, Backed By Science

The safety and efficacy of Protectival™ is backed by 15 years of research done in collaboration with renowned oncologists and scientists from leading hospitals and universities, including Harvard University, MD Anderson, Miami Children’s Hospital and more.

A big part of the study focused on the potential role of Protectival in immune system stimulation including NK cells activation.

The study showed a 400% increase in Natural Killer cells activity with Protectival.

Loved By Customers


To me, Protectival is not just a supplement, but a life saver. It helped me gain back my strength, my health and my hope.

—Mary  S.

Rated 4.8 out of 5

The Importance of Natural Killer Cells

Natural Killer cells play an important role in our immune system. Keeping your NK Cells in peak performance means better protection from unhealthy cells. 

Unfortunately, as we age and are exposed to various environmental stressors and toxins, our NK Cells function rapidly decline.

Protectival has been shown to increase immune system activity by up to 400%, enhancing your body’s natural ability to fight infections viruses and illness.

Powered By Nature


Protectival is patented combination of 14 different botanicals, known by traditional medicine and verified by science for their qualities.  Protectival is made from 100% natural ingredients using the highest quality standards.

Each botanical was selected for its wide range of action and ability to work together synergistically, creating an outstanding combined effect in supporting immunity and cellular health.


Setting A New Standard for Quality and Safety

The safety & efficacy of Protectival are the result of intensive scientific research, product development, and a unique production control process.

Clinical Safety

Protectival™ was validated for safety in clinical trials. No side-effects or drug interaction issues have been reported.

Ingredients: Purity & Potency

At every production the ingredients are tested for bio-active potency and to ensure that they are free of toxins.

Good Manufacturing Practice

Protectival is produced under the highest quality control standards at a GMP certified production facility.

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90 days - Full dose

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