W/O Emulsion Stability with Ceramide Phase Control

The patent changes the physical state parameter of ceramides from crystalline to amorphous by controlling the emulsification process. This is achieved by using specific emulsifiers and controlling temperature and mixing conditions during preparation, transforming ceramides into an amorphous state that can be stably dispersed in the emulsion system without crystallization, thereby resolving the contradiction between maintaining ceramide structure and achieving emulsion stability

The patent introduces emulsifiers as intermediary substances to facilitate the mixing and stabilization of ceramides in the emulsion system. These emulsifiers act as mediators between the hydrophilic and hydrophobic components, enabling stable dispersion of ceramides and preventing phase separation, thus improving emulsion stability while accommodating the crystalline nature of ceramides

The patent creates a composite emulsion system combining W/O emulsion base with amorphous ceramides and specific emulsifiers. This composite formulation maintains the moisturizing properties of W/O emulsion while the amorphous ceramide structure and emulsifier selection improve the texture and spreadability, resolving the contradiction between moisturizing effectiveness and application ease

The patent applies local quality modification by specifically targeting the ceramide phase within the emulsion. By transforming only the ceramide component to amorphous state while maintaining the W/O emulsion structure, the patent locally improves spreadability and texture characteristics without compromising the overall moisturizing function of the W/O system