Greenies Dental Treats Catnip Flavour for Cats is special catnip flavoured treats for cats. It is designed to help reduce plaque and tartar build-up. Greenies dental chews are highly vet recommended treats for dental health. The crunchy texture encourages chewing and removes tartar and plaque build-up. Daily chewing helps to prevent tartar formation and keeps teeth clean. It not only strengthens teeth but also cleans and maintains gums.