Pullulan is a natural biopolymer obtained from the mushroom species A. pullulans. Pullulan is created by extracting water from the mushroom that is grown organically on a tapioca starch substrate. Organic India’s pullulan is vegan, free of major allergens (soy, wheat, corn, dairy, and nuts), non-gmo, and certified USDA organic. Pullulan creates an oxygen barrier to ensure the shelf life of Organic India supplements. Pullulan capsules also protect encapsulated herbs from oxidation.