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Mix together glycerin, peppermint oil, salt, and baking soda. Apply to teeth. Store toothpaste. Make a Bentonite clay toothpaste.
Combine 3 tsp of vegetable glycerin with 3 drops of peppermint oil. Add half a tsp of salt with 5 tsp of baking soda. Stir the ingredients together thoroughly. Add more peppermint oil, as desired. Cover your toothbrush with the homemade toothpaste. Brush teeth for two full minutes. Rinse thoroughly. Purchase a squeezable plastic tube or bottle to store your homemade toothpaste in (e.g. travel bottles). Alternatively, store the toothpaste in a small jar with a lid. Use a small plastic spoon to apply toothpaste to your toothbrush, and avoid dipping your toothbrush into the jar (which could spread germs). Another option for homemade toothpaste is a recipe that has Bentonite clay and baking soda as key ingredients. Combine the following ingredients and stir until mixed:  3/8 of a cup of soft coconut oil (not liquid) 1/4 cup of baking soda 1 tsp. Bentonite clay 1/2 teaspoon of salt 5-7 drops of peppermint essential oil