Lion's Mane mushrooms have long been used in China and Japan to promote immune and digestive health. Recent research demonstrates that a substance in Lion's Mane inhibits the formation of toxic peptide in brain cells. Another substance stimulates the production Nerve Growth Factor (NGF), which may support healthy nerves in the brain and body. Super Lion's Mane contains both the whole fruit body of Lion's Mane and its high-quality hot water extract. It also contains an extract of Maitake D-Fraction® (TD-Fraction®). Maitake D-Fraction® supports a healthy immune system.