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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

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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
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BLOGS & ARTICLES

Fascinated by all things Fungi? Check here to stay in-the-know!

Lion's Mane Mushroom growing on the side of a tree.

Lion’s Mane Mushroom Benefits*

Often referred to as “The Smart Mushroom,” Lion’s Mane is one of the most well-known beneficial mushroom species world-wide. With important benefits for brain health, like supporting memory, cognition, and mental clarity, Lion’s Mane is a popular supplement choice among...

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Myceliated Grain Vs Filler

Myceliated Grain vs Filler

The mycelium and fermented substrate - also known as ‘mycelium biomass’ or ‘myceliated grain’ - is a unique ingredient that has been converted as mushroom mycelium consumes and ferments a food source, whereas a ‘filler’ is an inactive ingredient that serves to add weight or bulk to the main ingredient. But the substrate, once fermented, is actually immunologically active and complements the health-supporting benefits of the mycelium.*
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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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BRAND HIGHLIGHTS

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