The TropiClean Fresh Breath Water Additive - Skin & Coat is a great way to keep dental disease at bay. All you need to do is tip a capful of it into your dog's water bowl. Every time your pet laps up some water, it helps resist the formation of plaque and tartar. It contains natural green tea extracts that do this. It keeps your dog's breath fresh for up to 12 hours. Thanks to the added Omega 3 & 6 fatty acids, it also contributes to a healthier skin and coat.