Lion's Mane Extract
Also known as: Hericium erinaceus, Yamabushitake, Monkey Head Mushroom, Bearded Tooth Mushroom
Effective Dosage
500-3000 mg daily (no confirmed optimal dose from provided studies)
What the Science Says
Lion's Mane is a culinary and medicinal mushroom long used in East Asian traditional medicine. It contains compounds called hericenones and erinacines, which in laboratory and animal studies appear to stimulate nerve growth factor (NGF) production — a protein important for brain cell health and function. Small human trials have explored its potential to support memory and mild cognitive function in older adults, but the evidence is preliminary and no large-scale clinical trials have confirmed these effects.
What It Doesn't Do
Not proven to reverse or prevent Alzheimer's disease or dementia. Won't sharpen focus or boost IQ in healthy young adults — no solid evidence for that. Not a substitute for medical treatment of any neurological condition. Claims about 'regrowing brain cells' in humans are not supported by clinical data. No proven benefit for anxiety or depression based on available evidence.
Evidence-Based Benefits
Lion's Mane is a culinary and medicinal mushroom long used in East Asian traditional medicine. It contains compounds called hericenones and erinacines, which in laboratory and animal studies appear to stimulate nerve growth factor (NGF) production — a protein important for brain cell health and function. Small human trials have explored its potential to support memory and mild cognitive function in older adults, but the evidence is preliminary and no large-scale clinical trials have confirmed these effects.
Weak EvidenceEffective at: 500-3000 mg daily (no confirmed optimal dose from provided studies)
Source: auto-research
Absorption & Bioavailability
Unknown — bioavailability of key active compounds (hericenones, erinacines) in humans is not well characterized. Extraction method (hot water vs. alcohol) affects which compounds are present, and most products don't specify which fraction is standardized.
Red Flags to Watch For
- Products rarely specify whether they are standardized for hericenones, erinacines, or beta-glucans — making potency comparisons impossible
- Many products use mycelium grown on grain rather than fruiting body extract, which may contain mostly filler starch with minimal active compounds
- Marketing claims about 'neurogenesis' and 'brain regeneration' in humans are not supported by clinical evidence
- Rare allergic reactions have been reported, including skin rashes and respiratory symptoms — people with mushroom allergies should use caution
- No established safe dose or long-term safety data from clinical trials
Products Containing Lion's Mane Extract
See how Lion's Mane Extract is used in these analyzed products:
Research Sources
- General knowledge — no research papers were provided for this analysis. Limited published clinical research available overall.
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-09