New Stain Zone removes almost all impossible stains such as mustard, furniture and wood stains, shoe polish, urine stains, vomit, pigments, coffee, tea and other organic dyes and materials. Stain Zone is a single product system and doesn't require mixing, special sprayers or anything else! Stain Zone works by removing, oxidizing or making invisible these previously permanent stains! A truly revolutionary innovation from Bridgepoint Systems! When residual discoloration remains, this product will continue to work as it dries