Agarikon (Fomitopsis officinalis)
Rare old-growth mushroom with antiviral compounds studied for immune defense — one of the oldest medicinal fungi known to science.
Agarikon is one of the oldest mushrooms used medicinally, with references dating back to ancient Greek physician Dioscorides who called it the 'elixir of long life.' It grows on old-growth conifer trees and is now quite rare. Laboratory studies have revealed antiviral compounds, but human clinical evidence is very limited — most research remains preclinical (in-vitro and animal studies).
Contains multiple antiviral molecules
Supports immune system function
How Agarikon works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
500-1500mg extract daily
Loading: Not established
Can be taken without food
| Form | Type |
|---|---|
| 💊Agarikon extract | Recommended |
| 💊Capsules | Alternative |
| 💧Tincture | Alternative |
Due to rarity, ensure products come from sustainable, verified sources.
Minimum: 4 weeks
Optimal: 12 weeks
Cycling: Not required
Note: Relatively rare and expensive mushroom. Quality sources are important.
Enhanced immune defenses
May help protect against viral infections
Most evidence is from laboratory studies — most evidence is from animal and in-vitro studies
Limited human safety data; use with appropriate caution
Medicinal mushrooms may affect blood clotting; use caution
May counteract immunosuppressive effects due to immune-stimulating properties
May affect blood sugar levels; monitor glucose
Tip: Take with food
Top studies from 9+ peer-reviewed papers
Muszyńska B et al. • Chemistry & biodiversity (2020)
“It has been proved that both crude extracts and the compounds isolated from F. officinalis have a wide spectrum of therapeutic effects, including anti-inflammatory, cytotoxic, and antimicrobial effects.”
Shen Y et al. • International journal of biological macromolecules (2024)
“The following mechanism examination discovered that FOBP50-1 interacted with TLR-4, PD-1, and VEGF to activate immunity and inhibit angiogenesis according to a series of cell, transgenic zebrafish,...”
Liu W et al. • International journal of biological macromolecules (2024)
“The following mechanistic analysis discovered that the in vivo antitumor effect was linked to immune activation and angiogenesis inhibition.”
Altannavch N et al. • Anti-cancer agents in medicinal chemistry (2022)
“This study reports that Fo3-chloroformic extract is rich in antitumor activity, which was previously not investigated in cancer.”
Jakopovic B et al. • Molecules (Basel, Switzerland) (2020)
“This data provides good basis for an expanded translational study.”
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