Ingredients · Lion's Mane Mushroom · Research
Clinical research

What does the research say about Lion's Mane Mushroom?

moderate evidence

Lion's mane (Hericium erinaceus) contains hericenones and erinacines, compounds that stimulate nerve growth factor (NGF). Human evidence is most established for mild cognitive decline.

Best-evidenced use cases
  • Mild cognitive decline / early memory issues
  • Mood support (early evidence)
  • Nerve regeneration (mechanistic)
  • Stress-related cognitive performance

3 key studies

Search PubMed for more
  • 01RCT2009Phytotherapy Research

    Lion's mane mushroom and mild cognitive impairment

    Mori et al.
    Sample
    30 older adults with MCI
    Dose
    1 g lion's mane extract 3×/day
    Duration
    16 weeks
    Key finding

    Lion's mane significantly improved cognitive function scores vs placebo. Benefits diminished after discontinuation, suggesting active mechanism rather than disease modification.

    Read on PubMed
  • 02RCT2010Biomedical Research

    Hericium erinaceus and depressive/anxious mood

    Nagano et al.
    Sample
    30 menopausal women
    Dose
    Cookies containing lion's mane
    Duration
    4 weeks
    Key finding

    Lion's mane consumption produced significant reductions in depression, anxiety, and irritability scores vs placebo cookies.

    Read on PubMed
  • 03Mechanistic2013International Journal of Medicinal Mushrooms

    Lion's mane and nerve growth factor activity

    Lai et al.
    Sample
    In vitro and animal models
    Dose
    Variable
    Duration
    Variable
    Key finding

    Hericenones and erinacines from lion's mane cross the blood-brain barrier and stimulate NGF synthesis, providing a plausible mechanism for cognitive benefits.

    Read on PubMed
How we read the research

We prioritize randomised controlled trials and meta-analyses over single observational studies. Animal and in-vitro data are listed as "mechanistic", they suggest direction, not human effect size.

What we don't do

We don't cherry-pick favourable studies, omit conflicting evidence, or cite industry-funded trials without flagging the conflict of interest where known.

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Studies referenced are real published research. Summaries are paraphrased for accessibility, for exact methods and full text, click through to PubMed. Educational use only, not medical advice. Consult a qualified clinician before starting any new supplement.