PURINA DENTALIFE ActivFresh Medium Designed to combat the bacteria that cause bad breath. Natural cleansing action - With Spirulina and Honey. Scientifically proven to reduce tartar buildup. Clean even hard-to-reach teeth. Characteristics: Designed to combat the bacteria that cause bad breath. Natural cleansing action - With Spirulina and Honey. Scientifically proven to reduce tartar buildup. Clean even hard-to-reach teeth. No added artificial flavorings or colors and low in fat. Dont hide your dogs bad breath, fight it! Start your dogs easy and efficient dental routine now with just one stick a day! Because bad breath in dogs can be a sign of serious dental problems, the experts at Purina have developed Purina Dentalife ActivFresh Medium, a dental treat containing natural spirulina and honey, to help fight the causes of bad breath instead of just masking it. Purina Dentalife ActivFresh is designed with a shape, size, and porous, chewable texture that is scientifically proven to reduce tartar buildup and is shown to help clean even hard-to-reach back teeth, which are the most vulnerable to plaque and tartar accumulation. These dental chews are designed for daily use and chewing, meaning more cleaning time.