nootropic
Lion's mane
Also known as: Hericium erinaceusLion's mane is an edible mushroom used in supplements marketed for focus and cognitive support. Most human research to date is small and early-stage.
Educational reference only — not medical advice. These statements have not been evaluated by the FDA, and this information is not intended to diagnose, treat, cure, or prevent any disease. Talk to a healthcare provider before use.
Typical dose
Studies vary widely (roughly 500–3,000 mg/day of extract); no standard dose is established.
Onset
Studied over weeks of consistent use rather than acutely
Duration
Not applicable (taken as a daily supplement)
Legal status
Sold as a dietary supplement or food in the U.S.
Common forms
CapsulePowderTinctureCoffee blend
Safety
Generally well tolerated in short studies; robust long-term human data is limited. People with mushroom allergies should avoid it.
Interactions
Few documented; consult a healthcare provider if you take medication.
Who should avoid
People with mushroom allergies, and those pregnant or nursing (limited data), should be cautious.
Sources
- Mori K, et al. Improving effects of Hericium erinaceus on mild cognitive impairment. Phytother Res. 2009.
- Docherty S, et al. The Acute and Chronic Effects of Lion's Mane Supplementation in Healthy Adults. Nutrients. 2023.