Gets out other touch stains too! Specially formulated to remove acid-based stains such as urine, coffee, wine, and fruit juices from carpet; Approved by DuPont & Monsanto for use on stain-resistant carpets. Rug Doctor Pet Stain Remover is specially formulated to remove acid-based stains such as urine, coffee, tea, wine, berries, fruit juices, etc. A special ingredient neutralizes the high alkali and ammonia content in urine and prevents it from bleaching carpet fibers. (If urine spot has been left untreated and bleaching has already occurred, nothing can reverse it).