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SHOP HOST DEFENSE PRODUCTS
Host Defense Supplements are Powered by Mushroom Mycelium

MYCELIUM EXPLAINED!

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Founded by Paul Stamets Light Blue Icon

Founded By Paul Stamets

About Fungi Perfecti®
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An Eco-Friendly Brand

Sustainability Report
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Giving Bees A Chance

BeeFriendly™ Initiative
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HELPING BEES, TREES, PEOPLE, & PLANET

Paul Stamets started Fungi Perfecti® with the goal of building the bridge between people and fungi.
Since its inception in 1980, Fungi Perfecti has become synonymous with cutting-edge mycological research and solutions. Our continued mission is to explore, study, preserve, and spread knowledge about the use of fungi for helping people and planet. Read More »

COMPANY POLICIES | LATEST UPDATES

Makers of Host Defense Mushrooms

Our mushrooms are USDA organic, non-GMO, vegan, and gluten-free.
We base our product development and formulation on scientifically proven data to ensure quality and efficacy. All of our supplements are verified for identity, purity, composition, and strength by independent labs.

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Host Defense® Products Currently Available

USDA Certified Organic
Non-GMO
Vegan
Gluten-free
Eco-Friendly Packaging
Washington State Certified Organic

RESEARCH & DEVELOPMENT

Meet the Fungi Perfecti R&D Team

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BLOGS & ARTICLES

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We’re Climate Positive

We’re Climate Positive

When you purchase beneficial mycelium-based supplements from Host Defense® Mushrooms™, you are supporting impactful sustainability efforts and climate positive action!*
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MycoBrew® Lion’s Mane Drink Mixes

MycoBrew® Lion’s Mane Drink Mixes

MycoBrew® Coffee, Matcha, Cocoa, and Mocha are specially-crafted, flavor-forward formulations that offer a premium taste experience, available in both grab-and-go packets and bulk canisters.
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BRAND HIGHLIGHTS

Learn more about what we've been up to at Fungi Perfecti!