Lion's Mane
Also known as: Hericium erinaceus, Yamabushitake, Monkey Head Mushroom, Bearded Tooth Mushroom, lion's mane, lions mane mushroom
Effective Dosage
1.8 g daily (limited clinical data; no firmly established range)
What the Science Says
Lion's Mane is an edible medicinal mushroom (Hericium erinaceus) traditionally used in East Asian medicine. Early human studies suggest it may offer modest benefits for cognitive performance and mood, particularly with daily use over several weeks at doses around 1.8 g. Lab studies identify bioactive compounds — including erinacines and polysaccharides — that show antioxidant and neuroprotective properties, though most mechanistic work remains in cells or animals.
What It Doesn't Do
Not proven to sharply boost memory or focus in healthy adults — one acute-dose study found no significant cognitive effect. Won't replace medical treatment for dementia or neurological disease. No solid human evidence it enhances athletic endurance. Single-dose effects are inconsistent across studies. Don't expect dramatic results from one serving.
Evidence-Based Benefits
Lion's Mane has been shown in several clinical trials to potentially support cognitive function and may promote nerve growth factor (NGF) synthesis, which is important for the growth and maintenance of neurons. Some studies suggest it may also have neuroprotective effects and improve mild cognitive impairment.
Moderate EvidenceEffective at: 500-3000 mg daily
Source: auto-research
Absorption & Bioavailability
Unknown — no pharmacokinetic data in the provided studies. Bioactive compounds (erinacines, polysaccharides) are identified in lab analyses, but how well they absorb in humans is not established by the provided research.
Red Flags to Watch For
- Most mechanistic evidence comes from cell and animal studies — human trials are small and preliminary
- Acute (single-dose) studies show inconsistent or null cognitive effects, contradicting many marketing claims
- Over 1,000 registered supplement products exist, but standardization of active compounds varies widely — what's on the label may not match what's in the capsule
- No established safe upper dose from the provided human studies; toxicological data is limited
- Often sold in blends (e.g., with guayusa), making it hard to attribute any effect to Lion's Mane alone
Products Containing Lion's Mane
See how Lion's Mane is used in these analyzed products:
Best Earth Naturals Vegan Mushroom Complex
Supplement
Shopbestnaturals
Supplement
Realmushrooms
Supplement
Host Defense Stamets 7 Capsules
Supplement
Elm & Rye Vegan Protein Blend
Supplement
Anima Mundi Adaptogenic Powder
Supplement
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-08