Bark & Whiskers, Complete Probiotics, for Cats and Dogs, 3.17 oz (90 g), Supports Immune Function, Digestive Support, Non GMO, Soy Free, Gluten FreeBrand: Dr. Mercola Features: Helps Maintain Proper Gut Flora and a Healthy Intestinal Tract Brings together over 10 of the most powerful strains of beneficial bacteria that are most effective for promoting optimal gastrointestinal health in your cats and dogs Provides over 58 billion bacteria in every serving when used by the expiration date printed on the package Supports your pet's immune system function by helping them remove toxins Is a powerful