Bench & Beyond: Using Phase Diagrams to Follow Fragrance in an Emulsion

What happens when you put fragrance into an emulsion? How will it affect the emulsion? What controls how the fragrance will be released? How can you design a formulation that achieves the desired formulation characteristics and fragrance release?

In its simplest form, a fragrance emulsion is a turbid, relatively stable mixture of fragrance with other components, usually water and surfactant.  Two ingredients such as oil and water that are insoluble in each other can be made soluble/dispersible in each other through the effect of a surfactant, producing an emulsion with at least two phases or a microemulsion with only one phase.

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