@adonason Mixing both O/W and W/O emulsifiers would make the emulsion more stable, which usually translates in more viscosity, which is the contrary to what you want to achieve.
that only applies to O/W emulsions; it’s not possible for W/O emulsions to form with O/W emulsifiers present
Thanks for the comments, you two.
That’s interesting, do you know why that is? Do the hydrophillic components of the emulsifiers bind to each other instead of any water present?