Core's Unbelievable! Stain Remover Original Formula, lifts stains from carpet and upholstery on contact with no soapy residue. Contains no solvents or hazardous ingredients with a neutral pH. This stain remover is world renowned for taking out some on the toughest stains, such as blood, berries, and wine. It works great for pre-spotting laundry, or as a carpet stain remover before doing a complete wet carpet extraction. For other carpet spotting options, take a look at our complete line of carpet stain removing solutions.