Really starting to see a difference with my greyhound Jack’s teeth for the first time in 3 years. I have tried everything.. adding stuff to his water, seaweed, brushing, natural chews.. which have all helped a bit.. but starting to look much whiter than they have for a while. You have to stick with it for a little while before results, but I like that it’s aimed at working from internal too. Thank you ☺️