Now, if you or someone you know is a dental toothpaste salesmen please don't get all bent out of shape. No matter what anyone says most toothpastes are pretty much the same. There are a few products that your Aunt Betty makes in her back yard out of bees wax and real maple syrup. But other then that they are all pretty close.
In fact in a 4 week study the American Dental Association found very little, if no, difference between folks who brushed with toothpaste vs straight water.
Here is a link to the study.
And what they are made out of is not even really the important thing anyway. The important thing is that you actually pick up the brush and use it. And then pick up the floss and use that. If you do these two things, regardless of what types of toothpaste or floss, you will be in the 95th percentile of people in this country.
Moral to the story is this......
don't be so worried about what you put on the brush,
just put the brush against your teeth.