The Immune System Company®

Leading the way in immune system science for more than 25 years*

Science you can trust

Help your body recognize, respond to, and remember potential health threats with 4Life Transfer Factor®, an immune system memory molecule that is clinically proven to activate the immune system within two hours!*1

What are transfer factors?

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Your immune system is related to every other system in your body. That's why people are making the smart choice with 4Life Transfer Factor products.

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