I was told by the dentist not to use the product as I have caps and that could ruin the porcelain. He would not continue care if I use the product so, I stuck it in the cupboard only to see on the credit card that you are going to send it every month at the cost of $88.97. I will never use the product and have returned the tubes to you in the mail for full refund to my credit card. Buy the comments, it seems that I am not the only one who request a refund. Thank you for your time.Cancel all my subscriptions