New York Esthetics Practice Exam

The primary role of surfactants in cosmetic formulations is to help products spread easily on the skin or hair. Surfactants reduce the surface tension between different substances, which allows for better dispersion and mixing of ingredients. This property is crucial in many cosmetic products, such as creams, lotions, and shampoos, as it enhances the application and overall user experience. By improving the spreadability of a product, surfactants also contribute to more even coverage and improved performance during use, making them essential components in the formulation of effective cosmetics.