ProDen PlaqueOff Powder is a 100% natural pet food supplement containing the natural and organic kelp ingredient A.N ProDen shown in clinical trials to help reduce plaque and 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 dogs ordinary food, wet or dry, once a day with the supplied scoop. For a 10kg dog, a 60g bottle lasts roughly 6 months.