Source of live naturally occurring microorganisms, 400 million colony-forming units of lactic acid bacteria & 400 million live yeast cells. Promotes nutrient absorption & the proper balance of intestinal tract bacteria, enhances performance & endurance, improved haircoat, better appetite, more consistent stools and healthier puppies & dogs. Use before & after weaning puppies, gestation & lactation for bitches, training, hunting, periods of digestive upset or to enhance maintenance diets. Mix with dry or wet food at time of feeding. Less than 20 Lbs – 1/4tsp daily, 20-50 Lbs: 1/2 tsp. Store in refrigerator for extended life.