Shout Triple-Acting Laundry Stain Remover is tough on stains but gentle on your color-fast machine-washable fabrics. It s triple-acting formula Clings onto fabric stains in the washing cycle Penetrates stains quickly once sprayed upon and Lifts stains off of fabric. Shout Triple-Acting is 50x more concentrated than in-wash powder* and works on a wide range of everyday stains like food grass dirt and blood. Safe for all colorfast washables and works in all water temperatures. Shout has the stain-fighting ingredients to break up and remove tough stains so you can live in the moment and clean up later.