Stain removers are cleaning products designed to eliminate spots and marks from various surfaces, including fabrics, carpets, and hard surfaces. They come in different forms, such as sprays, gels, and powders, and often contain specific chemicals that target particular types of stains, like grease, ink, or food. Using a stain remover typically involves applying the product directly to the stained area, allowing it to penetrate, and then rinsing or blotting it away. Common ingredients in stain removers include enzymes, surfactants, and bleaching agents, which work together to break down and lift stains effectively.