Just used it once. After brushing my teeth and rinsing my mouth at night, I sprayed it three times (left, middle, right). After spraying, I drooled like crazy. I held it in my mouth for two minutes and spit it out. The next day, I ate and smoked normally without spraying. There was no taste in my mouth for the whole day, even my saliva had no taste 😂 It is much better than any mouthwash. I will continue to use it and see