ingestible · for brain fog & focus
Lion's Mane Mushroom
Reviewed by the Nimbera editorial team · Last updated May 2026
How to use
Take 500-1,000 mg of a standardised lion's mane extract (minimum 30% beta-glucans) twice daily with food. Allow 4-8 weeks to assess effects. Powdered whole mushroom products require higher doses (2,000-3,000 mg/day) for equivalent effect.
How it works
Lion's mane contains hericenones and erinacines, which cross the blood-brain barrier and stimulate synthesis of nerve growth factor (NGF). NGF supports neuronal survival, axonal regeneration, and myelin maintenance - all relevant to cognitive function and mental clarity.
Where to buy
Host Defense Lion's Mane ($30-$40/60 capsules), Real Mushrooms Lion's Mane ($40-$50/60 capsules), Nootropics Depot Lion's Mane - available online or at natural health stores.
Typical cost: $30-$50/month for quality standardised extracts.
Safety notes
Generally well tolerated. Rare reports of skin itching (possible NGF-related effect). Avoid if allergic to mushrooms. Safety in pregnancy not established - avoid.
Drug & supplement interactions
- Always tell your doctor or pharmacist about any supplements you take.
- Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
- Herbal remedies can affect how the body absorbs or metabolises drugs.
- Check drugs.com interactions checker before starting.
Clinical source
Mori et al. 2009 - Phytotherapy Research (PMID 18844328)This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.