Cationic surfactants are a type of surfactant that carry a positive charge. They are commonly used in various applications, including personal care products like shampoos and conditioners, as well as in fabric softeners. Their positive charge allows them to bond effectively with negatively charged surfaces, such as hair and fabrics, providing conditioning and softening effects. These surfactants work by reducing surface tension, which helps to spread and penetrate products more easily. Additionally, cationic surfactants can have antimicrobial properties, making them useful in disinfectants and sanitizers. Their effectiveness and versatility make them important in both household and industrial products.