The most recent homemade personal care product I decided to try is toothpaste. I started with the recipe here and modified it somewhat.

2 TBSP coconut oil
1 TBSP vegetable glycerin
3 TBSP baking soda
30 drops peppermint essential oil
5 drops tea tree oil

Put all the ingredients into a bowl and blend thoroughly with a fork.

It makes a sort of gritty paste that isn't quite the consistency of commercial toothpaste but is pleasant to use. It leaves your mouth feeling very refreshed and clean. You have to rinse well or you end up with a baking soda-y aftertaste. Also, the baking soda is somewhat abrasive, so I've noticed it being a bit harder on my gums than normal toothpaste.

There's probably a good way to squeeze this into a used toothpaste tube (a large syringe maybe?), but for now I just keep it in a jar next to the sink and dip my toothbrush into it.

When it's very hot this stuff ends up being kind of runny and separating. There might be a way to prevent this—maybe next time I'll experiment with adding a bit of cornstarch to it.

This is a recipe I'll definitely use again.