TropiClean Fresh Breath Water Additive for Cats is a natural liquid additive for drinking water, designed for the daily oral hygiene of cats. Did you know that without proper oral hygiene, over 70% of cats show signs of periodontal disease before they turn three years old? Periodontal diseases can lead to tooth loss and other serious health problems for your pet. Take care of your cat's oral hygiene with TropiClean products. TropiClean Fresh Breath helps maintain gum health, prevents plaque buildup, eliminates bad breath, and works for up to 12 hours after administration. How to use TropiClean Fresh Breath water additive for cats: add one tablespoon (or the contents of the cap) to approximately 0.5 liters of drinking water each time you refill your cat's bowl. Capacity: 237ml and 473ml - choose your variant. Ingredients: purified water, glycerin, potassium sorbate, citric acid, cetylpyridinium chloride (antiseptic), chlorophyll, zinc gluconate, green tea leaf extract.