Host Defense Brain Power Stack supports daily cognitive wellness with mushroom mycelium plus Lions Mane niacin and vitamin B12. This formula is designed to promote clarity attention focus nervous system health and healthy day to day nerve activity. It can be taken once daily with food or on an empty stomach or as directed by a healthcare advisor. Host Defense products contain no fillers and are third party tested for quality and safety. Made by Fungi Perfecti a family owned company founded in 1980 by Paul Stamets this supplement is produced in Washington State using cultivated mushroom mycelium and fruit bodies. Fungi Perfecti is also a certified B Corporation and uses eco conscious packaging that supports its environmental mission.