Put baking soda a salt into a bowl and mix together.
Add other ingredients and mix until you achieve a proper paste texture.
Add a small amount of baking soda if it's too runny; add more coconut oil if it's too dry.
Taste and add more essential oil if you want a more flavorful paste.
Store in an opaque container (required to protect the hydrogen peroxide) and use as you would normally.
This recipe can be doubled or tripled as needed.