2/3 cup of baking soda
2 tsp of salt (for "extra scrubbing power" according to the author of the recipe)
a few drops of peppermint essential oil or 1 tsp of peppermint extract
water to desired consistency
So, I quit.
But I DID love the way it made my teeth feel. See how pretty they are:
Actually, they're lookin' a little yellow-y. I gotta do something about that.
So, you should try this at least once in your life, but LEAVE OUT THE SALT. All you need is baking soda and water, and for minty-fresh breath, a little peppermint extract.