Gaia Herbs Lion's Mane Mushroom - 60 Capsules | Gaia Herbs Lion’s Mane was given its name due to its unique, fluffy appearance resembling the long tresses of a lion. This nootropic mushroom has a long history of use in Traditional Chinese and Japanese Medicine for supporting brain and neurological health. Bring this ancient wisdom to your wellness regimen to support mental performance, cognition, focus, and nervous system health.