Freeze Dried Probiotics Chews for Dogs What's Unique about Nature Target Freeze Dried Probiotics? Nature Target Freeze Dried Probiotics is the only freeze-dried formula that provides 6 billion CFUs of probiotics on the market. Nature Target Freeze Dried Probiotics for Dogs are based on one simple ingredient - Real Chicken and added with 6 billion CFUs probiotics, prebiotics, digestive enzymes, omega 3, multivitamins and minerals to help your pets keep overall health. We use a potent blend of 12 carefully selected beneficial strains which can resist stomach acid and quickly multiply and colonize the intestine. What's unique about our formula is that we use special Saccharomyces boulardii to reestablish a normal intestinal environment after diet changes, antibiotic treatment and travel.