Gather all of your utensils, mixing blows, measuring cups, spoons, and ingredients.
Measure out the cupuacu butter, kokum butter, carrier oil or infused oil, and cetyl alcohol. Place all of these ingredients into a double boiler or heat safe container and melt them down over low heat.
Place the liquid mixture into the freezer until it is moderately firm (about 10min to 20mins), depending on your freezer temperature.
Once the mixture is firm begin whipping the mixture with a Stand Mixer or a Hand Held Mixer until it starts to become fluffy (about 10 mins).
Add in the corn starch or arrowroot powder and continue mixing.
Add in the vitamin E and fragrance oil and continue mixing until the ingredients are mixed in well.
Next, add in some mica for color and blend it into the mixture (optional).
Using a spatula place the body butter into your jars (piping is optional).