Homemade Chemical-Free Kid Toothpaste - Live Simply Ingredients 1/3 cup coconut oil, soft but not melted 1 TB good-quality baking soda 1 TB bentonite clay 1/4 tsp pure liquid stevia 4-10 drops of essential oil: I use Sweet Orange for this. Lemon or Peppermint are also an option, if that's more appealing to your kids.