1 teaspoon baking soda
1/2 teaspoon sea salt, finely ground
1 drop peppermint, spearmint, sweet orange, clove, or cinnamon bark essential oil
A few drops tap water
Combine ingredients in a small bowl and mix them thoroughly with a toothbrush, your finger, or a small spoon until a smooth, thick paste forms. The paste shouldn’t be too runny; it has to stay on your toothbrush.
Dip your toothbrush into the paste and use as you would regular commercial toothpaste.