Our pet mouth repair gel contains glycerin, triethanolamine. It can help improve breathing, reduce the risk of bacterial erosion and tooth decay, and help maintain good dental health. Its use is simple: 1. Gently open the pet's upper and lower jaws; 2. Apply appropriate amount of gel to pet mouth evenly; 3. Do not let pets eat or drink within one hour after use; 4. Daily use can get better results. Whiten and yellow teeth, remove accumulated tartar, and provide a comprehensive cleaning experience for the mouth. Eliminate bad breath, relieve tooth sensitivity, gum bleeding, etc.