Full profile

Also known asHericium erinaceus
Best forLong-term cognitive support interest · Daily routine
Evidence gradeEmerging — Emerging — mostly preclinical or preliminary human data
Studied dose range500–1000 mg of extract in some studies; varies widely by preparation.
Time to effectGenerally studied over weeks of daily use.
Best formFruiting-body extract with stated beta-glucan content; avoid undefined mycelium-on-grain fillers.

Evidence, honestly graded

Some small human trials and considerable preclinical work. Human evidence remains limited and preliminary.

See the full grading rubric — study type, replication, population match, and dose adequacy — in The Evidence Standard.

Side effects

  • Generally well tolerated
  • Possible skin or respiratory sensitivity in mushroom-sensitive people

Who should avoid it or check first

  • Known mushroom allergy
  • Pregnant or breastfeeding without clinician guidance

Interactions

  • Limited interaction data — discuss with a clinician if on medication

Stacks well with

  • Citicoline
  • Bacopa Monnieri

What to look for on a label

  • Prefer fruiting-body extracts with a stated beta-glucan percentage.
  • Be cautious with products that only list total polysaccharides.

References

  • Lion's Mane human pilot studies. Small and preliminary; used for education, not claims.

Primary citations for some entries above are still being compiled; those without a linked identifier are editorial summaries of the wider literature.

Grades and studied doses are our conservative reading of the human research, shown for education. They are not product claims, and a studied dose is not a recommended dose.

See how Lion's Mane compares on grade, dose, and goal in the Evidence Explorer.