Tropiclean Fresh Breath Oral Care Water Additive is developed to provide dogs and cats with essential daily oral hygiene. Without proper dental care, 70% of dogs and cats start to show signs of oral disease by age 3. Oral disease can eventually lead to tooth loss or other serious health problems. Tropiclean's Water Additive promotes healthy gums and eliminates bad breath for up to 12 hours. Pet Friendly and Cruelty Free. Ingredients: Purified Water, Citric Acid, Cetylpyridinium Chloride, Chrlorophyllin, Glycerin, Potassium Sorbate, Green Tea Leaf Extract.