For broader research context on nootropic compounds, including comparative stacks, cycling considerations, and interaction notes, see the Complete Nootropic Cheat Sheet.
What Is Lion''s Mane?
Lion''s Mane, or Hericium erinaceus, is a tooth fungus in the family Hericiaceae. Rather than producing a conventional cap and stem, it forms a rounded fruiting body covered with long, pendant spines. The mushroom is native to parts of Europe, Asia, and North America, where it usually grows on decaying hardwoods or wounds of broad-leaved trees. It is edible when young and has a seafood-like texture and flavor. Commercial cultivation commonly uses sterilized sawdust or other lignocellulosic substrates. Products may contain the mature fruiting body, cultured mycelium, or a combination of both, and this distinction is important because the concentrations of potentially active compounds can differ.
Hericium species have a history of culinary and traditional use in China, Japan, and other parts of East Asia. The Japanese name yamabushitake refers to its resemblance to the garments or headwear associated with mountain ascetics. Traditional use has included food, general vitality, digestive support, and tonics for older adults, but historical use does not establish modern clinical efficacy. Contemporary interest developed after researchers isolated hericenones from the fruiting body and erinacines from the mycelium, compounds that can influence neurotrophic signaling in laboratory models. Human studies have been small, short, and based on different preparations, so Lion''s Mane is best viewed as a research supplement rather than a proven treatment for dementia, depression, neuropathy, or any other disease.
Quick Reference
Member reference tables summarize the compound's research parameters.
Research Indications
Research Protocols
As reported in cited literature and research-community logs (see Research Citations below), not a personal dosing recommendation.
This member section describes parameters reported in the research literature.
Peptide Interactions
This member section summarizes reported compound interactions and evidence limitations.
Reported Research Time Points
This member section summarizes reported research time points.
Safety Notes
Included for harm-reduction awareness only, in the event this compound is encountered outside its labeled research use. Inclusion here does not imply RUO Codes endorses, recommends, or instructs human use.
This member section discusses research safety considerations and uncertainties.
Quality Indicators
Research Citations
- Improving effects of the mushroom Yamabushitake (Hericium erinaceus) on mild cognitive impairment: a double-blind placebo-controlled clinical trial
Mori, et al., 2009, Phytotherapy Research - Reduction of depression and anxiety by 4 weeks Hericium erinaceus intake
Nagano, et al., 2010, Biomedical Research - Hericium erinaceus mycelia and its isolated erinacine A against neurodegenerative diseases: A review
Li, et al., 2018, Journal of Food and Drug Analysis