The interaction between surfactants and keratinous tissues

The study explored how surfactants interact with keratinous tissues such as hair, skin, and nails during cosmetic treatments. It found that surfactants penetrate these tissues, with some molecules binding to keratin and others affecting the structure of crystalline microfibrils, altering their tensile properties. This uneven distribution can lead to internal stresses and potential deterioration of the tissues. The effects of surfactants on keratin can be protective or harmful, depending on the type of surfactant and conditions. The study also noted that the deposition of surfactants can be controlled by adjusting product formulations.