Catnip can care and nurse the stomach and the digestive tract for cats. The leaves of peppermint are rich in chlorophyll. The cat can not synthesize itself so the cat will eat it automatically to supply vitamins. The cat can clean teeth, improve oral hygiene, prevent oral diseases and maintain a clear smell by chewing mint leaves. Using catnip to interact with cats can let the cat be friendly with people, feel comfortable an relax and ease the anxiety mood. The catnip is natural and does not contain non-toxic things, and it is harmless and healthy for cats.