WOemulsjon
WOemulsjon, or water-in-oil (W/O) emulsion, is a type of emulsion in which water droplets are dispersed in a continuous oil phase. In this system, the dispersed aqueous droplets are stabilized by lipophilic emulsifiers that favor interaction with oil, typically with low hydrophilic-lipophilic balance (HLB) values. The oil phase serves as the continuous medium, while the water forms the dispersed phase.
W/O emulsions are usually thick and have an occlusive, grease-like texture. They tend to be more resistant
Formulation and stability rely on selecting suitable emulsifiers with low HLB values and often combining other
Advantages of WOemulsjon include strong occlusion, excellent barrier properties, and suitability for delivering heat- or moisture-retentive