I have sensitive teeth and cannot use any toothpaste containing SLS or mint which irritates my gums and mouth tissue. When my daughter, who is a registered dental hygienist introduced me to this product I was impressed with how it made my mouth feel and the effect it had on my teeth. I have been using it for over 3 years and am now having difficulty finding it. I've tried several times to order it via Amazon only to be told once it is in my cart that it is out of stock. I do wish they wouldn't list it as 'in stock' when in reality it isn't. If anyone can find this product, good for you, because I havent' been able to for over a year now.