Add all the oils and beeswax to your double boiler, or in a stainless steel bowl over a pan filled with water, on low heat.
Apply heat until they are melted.
At the same time, combine the water phase in a pan (bain marie or double boiler) on low heat (lowest possible) so that it gets to the same temperatures as the oils.
Stir gently to blend.
Once the oils are melted, take it off the heat and start whipping with an electric mixer for a few minutes, at the same time add the water spoon by spoon.
Your liquids will turn into a cream.
Add the essential oils and mix until you get the creamy consistency desired.