Fungi Perfecti® - makers of Host Defense® Mushrooms™ - is a family-owned company specializing in mushroom mycelium-based supp ... lements. Founded by Paul Stamets in 1980 with the goal of building a bridge between people and fungi, Fungi Perfecti® has become synonymous with cutting-edge mycological research and innovative mycological solutions. The visionary leadership of Paul Stamets has led to significant breakthroughs revealing the power and potential of mushrooms and mushroom mycelium. This is the foundation of the Host Defense® brand. Based near the Olympic Rainforest in Washington state, we are one of the best-documented and longest-standing mushroom supplement companies in the USA. Our mushrooms are certified organic and non-GMO Project Verified. Since its inception, Fungi Perfecti® has been the industry leader in research on the endless potential for the use of fungi in everything from water filtration (mycofiltration) and ecological rehabilitation (mycoremediation), to using beneficial mushrooms to combat Colony Collapse Disorder in honeybee populations and in the form of mycelium-based supplements to support human health. Our continued mission is to explore, study, preserve, and spread knowledge about the use of fungi for helping people and planet. read more