High-quality laundry detergents are formulated with three key digestive enzymes: amylase for breaking down starchy stains, protease for tackling protein-based stains, and lipase for addressing greasy residues, including body oils like sebum. This makes laundry detergent functionally similar to a digestive system, effectively breaking down and removing stains.

Similarly, dishwashing detergents utilize protease and lipase to eliminate food residues all left behind after meals. The comparison highlights how these cleaning products operate as if they perform a digestive function, not merely cleaning but actually digesting the unwanted remnants of everyday life.