Blind study success!!
I did a blind study on my husband who has ground his teeth down pretty well and could probably use a few fillings. He asked me the other day if the tooth powder was fixing his teeth because they felt smoother and sharper!! I bought ours directly from Redmond because Amazon didn't carry it yet. We've been using it for just under 2 months. He has the black licorice and I have the peppermint.
Rating: 5 stars