Surface tension reducers are substances that lower the surface tension of liquids, making them more effective at spreading and wetting surfaces. These compounds, often called surfactants, help improve the performance of cleaning products, paints, and agricultural sprays by allowing them to penetrate surfaces more easily. In various applications, surface tension reducers enhance the ability of liquids to mix with other substances. For example, in the case of detergents, they help water to better interact with dirt and grease, leading to more efficient cleaning. In agriculture, they assist in the even distribution of pesticides and herbicides on plant surfaces.