Cleaning your teeth with dirt sounds pretty oxymoronic, right? You might be surprised to know that clay toothpaste actually leaves your teeth feeling very clean. One of the things I like best about it is that it doesn't contain glycerin, which doesn't clean but actually coats your teeth. This coating, while it may sound like a good thing, prevents teeth from being able to remineralize and can actually weaken teeth over time. Many of us have gotten off of conventional brands of toothpaste and switched [...]