Dental Bars are daily nutritional supplement to promote oral hygiene in dogs over 10 kg: Limits the development of dental plaque & tartar Helps fight bad breath Not recommended for: Puppies under 6 months Benefits: The very elastic texture of Oral Bar Small Dog has a mild abrasive effect which breaks the biofilm structure of dental plaque, helps remove tartar deposits & delays formation of new deposits. Sodium polyphosphate chelates calcium ions making them unavailable for tartar formation. It is highly hydrophilic & spreads through the whole oral cavity, including areas that are not in physical contact with Oral Bar during mastication. Zinc facilitates calcium dissolution & slows down its incorporation into tartar. Bad breath is the result of bacteria produced volatile sulphur compounds (V.S.C.). Ingredients in Oral Bar (zinc, eucalyptus & green tea polyphenols) reduce the production of V.S.C..