Shout Triple-Acting Stain Remover Trigger's stain-fighting ingredients and enzymes quickly penetrate, break up and remove tough stains.Fabric stain remover spray. Removes stains the first time, guaranteed. Fabric stain remover spray. Removes stains the first time, guaranteed. SHOUT is safe for all colorfast washables (fabrics which do not bleed or fade). Tips: Treat stains while fresh. When treating tough stains, let set overnight or longer before washing. Convenient trigger dispenser. Safe for all colorfast washables. Works in all water temperatures.