Synopsis

Emulsifiers were considered inactive ingredients in the past, and little or no attention was paid to their interaction with the skin barrier. However, in recent years, it has become evident that these ingredients can significantly impact skin physiology. Certain formulations have been found to reduce the thickness of the stratum corneum, which has been attributed to the choice of emulsifier. This means that the benefits provided by active and emollient ingredients in these formulations are mitigated.  Therefore, formulators must select an emulsification system that has no detrimental effect and preferably has a positive effect on the skin barrier. This presentation will discuss the interaction between emulsifiers and the skin, highlighting the importance of selecting the right emulsifier system for effective skincare products.