Our pet tooth cleaning brush contains deionized water plant extract peppermint extract. It can dilute the black stains on the surface of the teeth restore the bright white luster of the pet teeth and improve the oral appearance. Its use method is very simple: 1. Turn the toothbrush to extract the oil from the surface of the teeth. 2. Clean your pet's teeth with a toothbrush and pen. 3. After 3 minutes use a tool to slowly scrape the dirt off your pet's teeth. 4. Reapply with a toothbrush to protect the surface of your pet's teeth. Maintain and repair your pet's teeth and oral environment. Improve the dental condition of pets and reduce the occurrence of oral diseases. The ingredients are mild and will not cause any irritation to your pet's mouth.