I take many medications that cause severe dry mouth and I tried everything out there. then I found biotene and it really worked. the thing is the toothpaste by itself is not as effective as the mouthwash used along with it. Also the toothpaste isnt the best at keeping your teeth white. I noticed stains forming when I switched. with that being said it works for dry mouth very well but i would recommend you use it along with the mouthwash. you have to keep in mind this isnt the best toothpaste for stains.