Please note that stains are due to the type of makeup used, and some types of makeup stain more than others. f stains remain after washing, they are purely aesthetic; the pads are clean and can be reused without any problem. If stains persist or bother you, you can soak your makeup remover pads in an equal mixture of baking soda and peroxide for a few minutes before washing them in the machine in the regular cycle. You can also rinse your makeup remover pads with water after each use to remove excess makeup.