Cleansing agents are substances used to remove dirt, impurities, and unwanted materials from surfaces or skin. They work by breaking down oils, grease, and other contaminants, making it easier to wash them away. Common examples include soaps, detergents, and shampoos, which are formulated to target specific types of dirt or stains. These agents often contain surfactants, which help to lower the surface tension of water, allowing it to spread and penetrate more effectively. Additionally, some cleansing agents may include antibacterial or antifungal properties to enhance their effectiveness against germs. Overall, cleansing agents play a vital role in maintaining hygiene and cleanliness in daily life.