Lion's Mane is an edible mushroom studied for potential cognitive and nerve-related benefits, popular as a nootropic for focus and memory. It is available as a food, a powder and a supplement extract.
Early research, including some small human studies and animal work, suggests possible cognitive and nerve growth-related effects, but the human evidence is limited in size and quality. It is a promising but not established nootropic, and much of the strong online enthusiasm outpaces the current evidence.
Generally well tolerated as a food and supplement. Allergic reactions are possible, particularly in those sensitive to mushrooms. Long-term high-dose safety is not well characterised.
If you have mushroom allergies, take it with caution. If you are taking it hoping to address a specific cognitive concern, that concern is worth discussing with a doctor rather than self-treating with a supplement of limited evidence.
Moderate, sold as a monthly supply of powder, capsules or extract.
Small human studies and animal research on Lion's Mane and cognition. Educational information only. Human benefit is not firmly established.