Resolve Oxi-Action Laundry In-Wash Powder makes stain removal swift and simple. Formulated for whites. The enzymes in the formula penetrate, loosen and eliminate stains the first time. Works great on variety of grass, dirt, red, coffee, food and grease stains. Great for keeping fabrics stain free. Works in all water temperatures. Suitable for regular and HE machines. Can also be used as a pre-treatment.