Animal"s Apawthecary Senor Blend was formulated for your pets to strengthen functions in the nervous, digestive, circulatory, and immune systems of older dogs and cats. Often used as a tonic in animals with diminished kidney function Animal"s Apawthecary Senior Blend is a Glycerin-Based formulation for both Cats and Dogs. All Animals Apawthecary tinctures are formulated by leading veterinarians herbalists. These veterinarians are intimately familiar with the needs and sensitivities of cats and dogs. The herbs Animals" Apawthecay uses are selected from only the highest quality, certified organic or wild-crafted sources found in North America. Animals Apawthecary"s naturally balanced herbal blends have a sweet flavor that appeal to most dogs and cats. All tinctures come in an unbreakable, recyclable plastic bottle. The 1 ounce sizes include plastic dropper to assure safe application.