I make my toothpaste. http://askthedentist.com/homemade-toothpaste/
fantastic info and ingredient list. i'm adding activated charcoal to mine:
Charcoal is an effective tool to help clean and brighten teeth. It can be used by itself, mixed with other ingredients to create a toothpaste/powder or even combined with other things to create a natural homemade mouthwash.
When used properly and regularly, charcoal helps to lighten stains caused by many different products such as coffee, tea, wine, fruit juices and tobacco.
Charcoal is so effective because it adsorbs stain-causing materials like tannins found in things we eat and drink. Even better, it doesn’t adsorb the materials found in your tooth enamel, which keeps it safe. For this reason, activated charcoal is an ideal natural tooth whitener.
(from the Zen Charcoal manual that came with our coconut activated charcoal)
also learning to brush in intentional and thorough circles instead of all over the place without much attention.