I have been trying to be proactive in keeping Kobe's teeth clean. I started using a product called Leba lll & it seemed to be working but then I became concerned because it contained some alcohol. I recently purchased a product called Plaque Off which contains a natural seaweed. I've read good results with this as well. My concern is if any of these products could have a negative effect. Anyone have any experience with Leba lll or Plaque Off?