Emulsion consists of two immiscible liquids. One phase is hydrophilic and the other lipophilic. The base of the hydrophilic phases is usually water, or a fluid that is miscible with water. It is thus known as the water phase (W). The lipophilic component of an emulsion can be a fat, oil, mineral oil, or other organic fluid. This is generally known as the oil phase (O). In an emulsion, one immiscible liquid is dispersed in the other form a dispersion medium in which various states of distribution are possible depending on which component forms the dispersed phase and which forms the continuous phase 1.