The Most Powerful Mushrooms Are Grown Right Here
Host Defense® Mushrooms™ by Fungi Perfecti® 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. Conveniently offering multiple delivery methods – capsules, extracts, sprays, powders, teas, syrups and more! – is one way we work to increase accessibility to the immune-supporting benefits of mushroom mycelium-based supplements. We grow our mushroom mycelium and fruit bodies at our farm based near the Olympic Rainforest in Washington state, and are one of the best-documented and longest-standing mushroom supplement companies in the USA.
Our product development and formulation are based on scientifically validated data to ensure the quality and efficacy of our supplements. Our mushroom mycelium and fruit bodies 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.
Beneficial mushroom supplements are well-known and widely-used for immune support. And research suggests that when multiple mushroom species are combined, they offer greater immune-supporting benefits than a single species At Host Defense®, we offer several immune-focused, mycelium-based formulas that combine multiple species, including:
Stamets 7® for core daily immune support
MyCommunity® for comprehensive immune support
Elderberry Plus Syrup for an engaged and balanced immune response
In addition to supporting the immune response, each beneficial mushroom species also offers a wide range of systemspecific benefits for whole body support. From cognition and memory to energy and stamina, Host Defense® mushroom mycelium-based supplements have something for you!
At Host Defense®, we follow the science.
One of the most significant outcomes of our research has been discovering the value of using mushroom mycelium. Years of industry-based research, along with both internal and third-party testing, demonstrates that mycelium-based mushroom supplements offer significant immunological support. We use mushroom mycelium in ALL of our supplements because it works!
Sustainability has always been among our core values at Fungi Perfecti® and Host Defense®. Between our internal emissions reductions and the carbon-offsetting projects we’ve sponsored, we have gone beyond achieving net zero carbon emissions to eliminate additional carbon dioxide from the atmosphere. This is climate positive. We’re proud to say that as of 2020, we are climate positive, offsetting more than 10 times our baseline emissions!
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 bestselling mushroom supplement brand in the U.S.1 Our continued mission is to explore, study, preserve, and spread knowledge about the use of fungi for helping bees, trees, people, and planet.+
Host Defense® is built on Paul Stamets’ visionary research into the power and potential of mushrooms, especially mushroom mycelium, the root-like structures found growing below ground that are the immune system of the mushroom. Our work is to build a healthier world with the power of mushrooms.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
1Source: SPINS scan Natural / Natural Products Supermarkets > $2MM /Total US – Natural Channel / Mushrooms Ingredient Report / 52 Wks 3/21/2021
+ Your purchase helps support research to protect bees from colony collapse as well as rare species of mushrooms dwelling in old growth forest.






