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Host Defense® Mushrooms™

Host Defense Mushrooms
A Product of Fungi Perfecti
Building a Bridge Between People and Fungi
Host Defense® Mushrooms™ was founded by renowned mycologist Paul Stamets with the goal of building a bridge between people and fungi. We specialize in mushroom mycelium-based supplements to support natural immunity and whole body wellness.* Based near the Olympic Rainforest in Washington state, we are one of the best-documented and longest-standing mushroom supplement companies in the USA.

Host Defense® Mushrooms™

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#1 Best Selling Mushroom Supplement Brand in the U.S. Host Defense® Mushrooms™ began as a direct-to-store manufacturer of mushroom supplements more than 10 years ago. Today, we are the industry leader and the #1 best-selling mushroom supplement brand in the U.S.ꝉ Our continued mission is to explore, study, preserve, and spread knowledge about the use of fungi for helping bees, trees, people, and planet.+

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At Host Defense®, all of our product development and formulation is based on scientifically validated data to ensure the quality and efficacy of our supplements. Our mushroom mycelium and fruit bodies are grown on our farm in Washington state and are certified organic, non-GMO, vegan, and gluten-free. And all of our supplements are verified for identity, purity, composition, and strength by independent labs that use internationally recognized, validated testing methods.