Lion’s Mane (Hericium erinaceus) is a unique mushroom with strong evidence for brain and nerve health. Research in healthy adults shows it can boost cognitive speed and reduce stress, even after short-term use. Its compounds, erinacines and hericenones, stimulate nerve growth factor (NGF), which is critical for neuron repair and protection. In older adults with mild cognitive impairment, Lion’s Mane supplementation improved memory and mental clarity over 16 weeks. If you’re new to functional mushrooms, think of Lion’s Mane as a natural way to support brain health, focus, and long-term cognitive resilience.