Hericium Erinaceus SAPMushroom (Lion's Mane) hot water extracted for optimal health and immune support (based on science) Hericium Erinaceus SAP is a mushroom extracted with hot water. Hericium erinaceus (HE) is also known by its common name, lion's mane. Hericium erinaceus has been called a natural neuron nutrient due to its ability to stimulate the production of nerve growth factor (NGF). NGF plays an important role in the central and peripheral nervous systems, and low