Formulated specially for pets to help remove plaque & prevent the build-up of tartar. No rinsing required. Plaque & tartar cause gum disease, which in turn may lead to periodontal disease & painful loss of teeth. Dental care should include regular dental check-ups & tartar removal with your veterinarian, & dental care at home. Regular cleaning, using the Petosan double-headed toothbrush is an effective way to help prevent dental disease.