My young granddaughter came to visit our house and was playing outside. She had fallen down and had grass stains on her jeans. Not wanting to send her home to her mother with dirty jeans, I planned to wash the them. I sprayed them with Prespot, and BEFORE , and I mean before, I got to wash them, the grass stains were gone – all gone. I proceeded to wash the jeans and they looked great. I love the Prespot and all of the cleaning products!!