Introduction to Water-In-Oil Emulsions

I have seen some interest in water-in-oil emulsions. Therefore, I wanted to create a dedicated post for them. If you have not previously formulated an oil-in-water emulsion, I recommend skipping this post. As this is a more intermediate to advanced topic. Check the "New to Formulating" section. I have all the theory for making oil-in-water emulsions there. That is what I recommend starting with. This post will be confusing because everything is the opposite of an oil-in-water emulsion.