There are two deodorant recipes I’ve found to be effective — the one without coconut oil is harder and stores better in the summer.

7 T shea butter
5 T arrowroot powder
3 T baking soda

OR

4 T shea butter
3 T coconut oil
5 T arrowroot powder
3 T baking soda

In the bowl of a double-boiler, melt the oil. In another bowl, mix the arrowroot powder and baking soda. Slowly pour powders into melted oil and stir to combine. Remove from heat and stir as it cools. When the mixture starts to thicken, scoop into container and allow to finish cooling.