ProDen PlaqueOff Powder for Dogs is a 100% natural pet food supplement containing the natural kelp ingredient A.N ProDen - shown in clinical trials to help reduce plaque & tartar and to help improve bad breath. The results are usually seen between 3 to 8 weeks, with continued use. Sprinkle the powder over the dog's ordinary food, wet or dry, once a day with the supplied scoop. For a 10kg dog, a 60g bottle can last approximately 6 months.