Place the shea butter in a a 4-cup pyrex measuring pitcher, or other tall narrow mixing container or bowl, and beat for several minutes with a hand mixer or stand mixer.
Once the shea butter is light and fluffy, add all of the other ingredients. Arrowroot is optionally added to help cut the greasy feel that body butters made with shea butter tends to have. If you don't have arrowroot, try tapioca or corn starch instead.
The clay is added for a light lavender color, that won't tint your skin. If you don't have any on hand, just leave it out.
To prevent splashes and splatters, resume beating on low, gradually increasing speed as everything incorporates together. Whip for several more minutes or until it reaches an airy, cream like consistency.
You can put in containers right away, or cover the mixing bowl and let it sit overnight. The next day, whip the body butter again, to make it extra fluffy.
Spoon into jars and cap tightly. Shelf life is at least 6 to 9 months. After several months of storage, the cream will start to settle a bit. You also want to keep it out of direct heat or sunlight or it may melt down.
Rub a small amount into dry skin, as needed. A little bit goes a long way!