We all learned in grade school that water and oil don’t mix. So how can you enjoy essential oils in your bath, or in cleaning sprays, and hand soaps? For that, you need an emulsifier. The molecules in an emulsifier have two portions: one is attracted to water and the other is attracted to oil. The end result is that emulsifiers act as a sort of glue between the oil and water molecules keeping them bound together. Otherwise, your oils would just sit on top of the water and never mix.