Add coconut oil, beeswax, and shea butter to a small saucepan over low heat. Stir continuously until melted. Once completely melted, remove from heat and whisk in arrowroot powder and baking soda. Add essential oil blend. Mix thoroughly but quickly as mixture starts to thicken. Pour into two empty deodorant containers and let sit until completely set (a couple of hours). Place lid on and use as you would any other deodorant.