The Bluestem Water Additive Sample powder mixes with water to make approximately 1 litre. Bluestem drinking water additive is for all breeds and sizes of cats and dogs. It contains coactive+ technology, a unique formulation of food-grade ingredients developed to breakdown biofilm, where harmful bacteria associated with periodontal disease multiply. Scientifically formulated to maintain good oral hygiene by attacking periodontal disease, it helps prevent plaque, breaks apart tartar, and also freshens breath! Daily use, as directed, is important for best results.