No. 1 stain remover (based on AC Nielsen data)! Triple-Acting: 1. Clings. 2. Penetrates. 3. Lifts. Formulated in partnership with the Design for the Environment Program. Shout is safe for all colorfast washables (fabrics which do not bleed or fade) and works in all temperatures. Stains like rust, bleach damage, dried paint, ink or dyes may be impossible for any laundry stain treater to remove. Made in USA.