NutriFeron is an exclusive, patented formula, which provides a proprietary blend of four plant extracts designed to naturally increase levels of interferon and provide immune support at the cellular level.

NutriFeron is a powerful breakthrough in immune system science. It is a patented, clinically proven blend of immune-strengthening plant extracts. For daily use, it increases the production of your body’s natural interferon, a critical activator of the immune system.

Shaklee NutriFeron is the only immunity supplement actually formulated by the discoverer of natural interferon, after an exhaustive review of 200 natural compounds. The patented, clinically tested formula is an easy way to keep your natural immune system finely tuned and on ready alert, taking the defenses you already have and making them even better. Only available from Shaklee, NutriFeron is a powerful and effective immune system supplement that has exceeded a stringent set of scientific tests for safety, purity, potency, and clinical tests for performance. It is also Star-K kosher certified

Recent preliminary laboratory studies suggest that, in as little as three days, NutriFeron can improve and unleash the full potential of the immune system.