Made with 100% Organic Reishi Certified Organic Ganoderma Dietary Supplement Clinically Proven Certified Organic by QAI GanoUltra is 100% American Cultivated Reishi. This is a combination of the 4 most potent strains of Red, Black, White and Purple Reishi. Fully Micronized to less than 40 micron particles size for virtually instant absorption. Absolutely the best Reishi available today. Guaranteed! All American Grown! Red Reishi - Ganoderma lucidum tsugai strain Black Reishi - Ganoderma lucidum AMI strain Purple Reishi - Ganoderma lucidum Ling Zhi strain White Reishi - Ganoderma applanatum