Been doing this for some time. No need for the glycerin, though. You can completely omit that and still end up with a lovely toothpaste. Using cinnamon extract, vanilla, mint, peppermint, or spearmint are all possible flavourings. And, you can adjust them all. I use roughly equal parts baking soda and coconut oil (roughly 1/2c ea), one packet of Stevia, and add my flavouring just until we’re happy, since we all have different preferences. OR, you can completely omit the extracts and have coconut flavoured toothpaste!
Been doing this for some time. No need for the glycerin, though. You can completely omit that and still end up with a lovely toothpaste. Using cinnamon extract, vanilla, mint, peppermint, or spearmint are all possible flavourings. And, you can adjust them all. I use roughly equal parts baking soda and coconut oil (roughly 1/2c ea), one packet of Stevia, and add my flavouring just until we’re happy, since we all have different preferences. OR, you can completely omit the extracts and have coconut flavoured toothpaste!