Paul's Picks!
Paul Stamets with an Agarikon fruit body

Mushroom Mycelium Formulas From the Trusted Experts!

Welcome to Host Defense Mushrooms! Founded by Paul Stamets, our mushroom mycelium and fruit bodies grown on our certified organic farm in Washington State are non-GMO, vegan, and gluten-free. We base our formulations on scientifically proven data to ensure quality and safety, which is why we are the best selling mushroom supplement brand in the U.S.ꝉ

A product of Fungi Perfecti, LLC. Building Better Health Since 1980.*

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Host Defense Seals

ꝉ SPINSscan Natural / Natural Products Supermarkets > $2MM / Total US - Natural Channel / Mushrooms Ingredient Report / 52 Wks Ending 12/29/2024

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Your Daily Capsule Routine

Made with Certified Organic, custom-dried mushroom mycelium/fruitbodies and encased in all-natural vegetarian capsules.

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Why Host Defense

Why Host Defense?

Founded by Paul Stamets
Pioneered by world-renowned mycologist Paul Stamets to connect people with the power of fungi.

Powered by Mushroom Mycelium
The foundation of every Host Defense supplement and our mission.

Innovative Research & Development
Our in-house R&D team drives groundbreaking research in fungi and wellness.

Climate Positive Commitment
We offset 110 percent of our emissions to create a net positive impact for people and planet.

Exceptional Customer Support
Our friendly, knowledgeable team is here to help at every step.

Stamets 7® for Daily Immune Support*

Host Defense subscription products

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Subscribe to your favorite Host Defense supplements and MycoBrew® drink mixes and you’ll save 25%, get free shipping, and more!

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