IMMUNITY SUPPORT: BIXBI Immunity is veterinarian recommended for dogs and cats and supports your pet's health and wellbeing; Suitable for any pet, this is an excellent holistic way to keep your pet in tip top shape ORGANIC PET SUPERFOOD FORMULA: Made with a powerful blend of organic mushrooms that supplies your pet with a large range of antioxidants and polysaccharides to reduce the number of free radicals in their body ALL NATURAL, GRAIN FREE & GLUTEN FREE: BIXBI dog and cat daily mushroom powder supplement is all natural, grain free, gluten free and contains no artificial preservatives or flavors USA MADE AND SOURCED: All BIXBI products are made proudly in the United States of America—our organic pet superfood supplements are USA made from USA grown organic mushrooms USDA ORGANIC & NASC CERTIFIED: Our dog and cat supplement products are certified by the National Animal Supplement Council (NASC) and USDA organic certified