Four Sigmatic is a USDA Certified Organic functional mushroom brand free from fillers, gums, artificial flavors, and chemical bean processing, with single-origin Arabica coffee from small family farms in Honduras that is high-altitude shade-grown, water-washed, and third-party tested for mold, mycotoxins, pesticides, and heavy metals. Unlike most mushroom supplement brands, it uses only whole fruiting body mushrooms rather than mycelium grown on grain, which retains significantly more of the active compounds that make functional mushrooms worth adding in the first place. Founded in Finland in 2012, it pioneered the mushroom category long before it became a trend. One of our favorites for clean adaptogens done without compromise.
