Most cosmetic ingredients contribute to surface activity and most cosmetic formulations and utilize a surface-active agent (example, solubilization, dispersants, cleansing, wetting, controlling viscosity/rheology and stabilization, emulsification, foaming and foam boosting)
The challenge is understanding which ingredients to use in an application and how to choose from the myriad of reported surface-active agents.
The key is to understand the basic physical and chemical properties that include the four (4) key attributes overlaid with their hydrophilic and/or hydrophobic (HLB influencing cloud point and temperature) properties. Join this course to: