Vet’s Best Breath Freshener Vet’s Best Dental Breath Freshener is a Natural water additive that deodorizes your pet’s breath. It contains Natural anti bacterial Ingredients as well as peppermint oil and clove oil. Just add a teaspoon to your pets fresh drinking water to tackle sources of bad breath. Vet’s Best Dental Breath Freshener for dogs is a water additive that de-odorizes your pet’s breath – no brushing required. Containing natural anti-bacterial agents, Vet’s Best breath freshener has been specially formulated to tackle sources of bad breath in dogs which form in the mouth. Simply add a teaspoon (approx. 5ml) to your pet’s fresh drinking water to freshen breath. Natural ingredients include Peppermint oil and clove oil. We recommend this product be used in conjunction with Vet’s Best Dental toothpaste gel for an overall oral care solution.