Drinking water additive for dogs and cats that helps fight plaque and calculus. BreathaLyser Plus is a veterinarian-formulated, pleasant-tasting oral care solution designed to help maintain oral hygiene and improve your pet’s bad breath. Simply add BreathaLyser Plus to your pet’s drinking water daily when brushing is not possible. Ingredients: Purified water, Glycerine, Polysorbate 20, Chlorhexidine Gluconate, Potassium Sorbate, Sodium Benzoate, Xylitol, Zinc Gluconate, Emilgase, FD &C Blue #1 Solution.