I got mine from a YT member whose user name is AMD. She has some great sales, and she ships really fast. I use it on my boys every night and love it! It was actually recommended by my vet. I use the gel with a Q-tip and follow with the spray. They don't like it at first, but they get used to it. I also brush their teeth 2-3 times a week with a fingertip toothbrush and doggy toothpaste. Mine don't like toothbrushes, but they don't mind the fingertip brushes at all. My vet always talks about what nice teeth my boys have.