Lion's Mane Mushroom — Medicinal mushroom / neuroactive botanical
Lion's Mane contains two classes of neuroactive compounds: hericenones (benzaldehyde derivatives — found in fruiting body) and erinacines (cyathane diterpenoids — found in mycelium). Both stimulate Nerve Growth Factor (NGF) synthesis in the brain and peripheral nervous system by activating the JNK pathway and NGF transcription. NGF supports neuronal survival, axonal growth, myelination, and synaptic plasticity. Also stimulates Brain-Derived Neurotrophic Factor (BDNF). Preliminary human data: Japanese RCT (Mori 2009, n=30; MMSE scores in mild cognitive impairment significantly improved vs. placebo). Anti-inflammatory via NF-κB suppression. Emerging data for depression/anxiety.
Overview
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Compound Class
Medicinal mushroom / neuroactive botanical
Mechanism of Action
Lion's Mane contains two classes of neuroactive compounds: hericenones (benzaldehyde derivatives — found in fruiting body) and erinacines (cyathane diterpenoids — found in mycelium). Both stimulate Nerve Growth Factor (NGF) synthesis in the brain and peripheral nervous system by activating the JNK pathway and NGF transcription. NGF supports neuronal survival, axonal growth, myelination, and synaptic plasticity. Also stimulates Brain-Derived Neurotrophic Factor (BDNF). Preliminary human data: Japanese RCT (Mori 2009, n=30; MMSE scores in mild cognitive impairment significantly improved vs. placebo). Anti-inflammatory via NF-κB suppression. Emerging data for depression/anxiety.
Regulatory Status
OTC dietary supplement. GRAS. Not FDA-approved for any indication.
Evidence Level
Low-Moderate — several small RCTs (n=30–80) for cognitive function. Robust preclinical NGF data. Long-term RCT data and larger trials needed. No guideline recommendations.