Skip to main content

Up to 20% off

when you sign up


  • Gluten free

  • Vegan

  • Non-GMO

  • Vegetarian

  • Organic

• Reishi is the #1-selling nutraceutical mushroom species worldwide
• Promotes cardiovascular system health*
• Supports the body’s ability to adapt to stress*
• Supports energy and stamina*
• Overall wellness support*
• Bio-digestible and bio-available;made from activated mycelium, not from indigestible fruitbodies and spores

Used for more than two millennia in Asia, Reishi (Ganoderma lucidum s.l.) has been respectfully called the “mushroom of immortality.” Reishi grows throughout the world, primarily on hardwood trees, and is well known for supporting general wellness and vitality.*

Host Defense® Reishi Capsules use activated, freeze-dried, Certified Organic mycelium, with a full spectrumof constituents: polysaccharides(beta glucans, arabinoxylane, glucose, xylose, galactose and mannose), glycoproteins, ergosterols, triterpenoids and other myco-nutrients,which are essential for Supporting Natural Immunity.*


Suggested Use / Directions:
As a dietary supplement, take 2 capsules once per day. Can be taken with food or on an empty stomach or as recommended by your healthcare professional.

Serving Size:
2 capsules

Amount Per Serving:

Calories ... 5
Total Carbohydrate ... <1 g
Reishi (Ganoderma lucidum s.l.) mycelium‡/fermented brown rice biomass‡ ... 1 g


Other Ingredients:
Pullan (capsule).


This product does not carry specific warnings on the label.
Why is this a top pick for Reishi?

This product has been chosen as a Top Pick by Fullscript based on factors like quality, ingredients, value, and availability. Your provider’s recommendation always comes first.

This product was selected based on the factors below: Ingredient:Activated, optimally dried organic Reishi mycelium provides a full spectrum of polysaccharides, ganoderic acids and extracellular prebiotic fibers. In vitro studies demonstrate immune support effects; clinical trials of generic, standardized Reishi extracts show support for NK-cell activity and stress. No published studies have evaluated Host Defense’s proprietary activated-mycelium formula. USDA-organic, non-GMO, third-party tested for contaminants.*

Learn more about our process

About enhanced testing

Every product on Fullscript meets our high quality standards – but we don’t stop there. Enhanced Testing means select products are pulled directly from Fullscript’s shelves and tested by independent labs, so what’s on the label matches what’s in the product.

Learn more about the testing methods

Top pick

Enhanced testing

Reishi (Ganoderma lucidum)

Host Defense

$20.99

Sign up for exclusive store pricing