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I find it odd that I can't find any sort of videos about that product. Usually people review stuff like this on youtube.

I've used it. I don't see a tremendous difference but it's definitely noticeable.

What difference do you see? Fewer cavities, or the site suggests a whitening and fresh breath effect.

Yep that's about it. I can't really tell the difference beyond a little better breath and a little less plaque.

You used it, but not anymore? Why did you stop?

Difference isn't really that tremendous. Better breath, less plaque, but really marginal.