ZYMOX Oratene Brushless Water Additive is a flavorless concentrate added to your dog’s daily drinking water. It provides a safe, healthy way to conveniently clean pet's teeth, freshen breath, kill germs and remove plaque biofilm without brushing. Especially beneficial to dogs on medications, diagnosed with cancer, diabetes, have anxiety or those with dry mouth in need of gentle, non-drying everyday oral care. Oratene contains two patented, natural enzyme systems based on 35 years of enzyme technology that inhibit odor-causing bacteria and remove plaque biofilm. The gentle formulation soothes and protects tissues while relieving symptoms such as; dryness, irritation, inflammation and redness. Add two pumps per approximately one quart (4 cups) of drinking water. 4 Fluid Ounces. For best results, use daily. Made in the USA. Animal cruelty-free product.