Formerly Dr. Mercola Healthy Pets, our reinvented line, Bark & Whiskers™ brings the same veterinarian-formulated products you know and love with a touch of playfulness – because who says wholesome health can’t be fun?Continue taking the lead in your pet’s health with Bark & Whiskers™ Complete Probiotics, a fan favorite product that supports gastrointestinal health with 38 billion CFU of beneficial bacteria from 14 carefully selected strains. These health-promoting strains survive stomach acid to reach your dog’s or cat’s small intestine, unlike some acidophilus-based products.