Plaque Off is a uniquely formulated aid to oral health for dogs, cat and other small mamals. Using one capful per 24 oz of water will help to eliminate plaque and tartar build up as well as odor causing compounds in your pet's mouth and digestive system. Takes effect within 24 to 48 hours. The active ingredients are Anthium Dioxide (tartar control) , Yuccarome (aids in mico flora in the G.I. track) and Mint Oils (breath freshner). Contains NO dyes, alcohol or sweeteners, odorless and tasteless. 16 oz