Our pet tooth cleaning spray contains gallnut, Trifructus, chamomile. It kills 98.99% of oral bacteria. Acting on the enzyme level, it can quickly eliminate bad breath, remove plaque and tartar, and treat gingivitis and periodontitis. 100% natural and safe ingredients for ingestion. The way to use it is simple: first open your pet's mouth with your hand, remove the lid, press the nozzle, and then spray the spray directly into your pet's mouth 2-3 times a day. After use it can help improve breathing, reduce the risk of bacterial erosion and tooth decay, and help pets maintain good dental health.