Cool Blue Mouthwash

I recently heard about this cool new product, I guess it has been available in the states for the last few years but it is new here in Canada. This works pretty neat, the kids use it like a mouth wash and the liquid actually clings to any plaque build up on their teeth and gums and turn it blue. The kids than know exactly where they need a little extra work on brushing to clean up the blue. I will be getting a bottle the next time I am out to the store