Stone Soap Ultra is a natural vegetable based cleaner derived from corn and natural oils. It is specifically formulated to be "stone friendly" and when diluted will not dull or damage the stone surface. It will not leave any soap residues, streak or cause the surface to become slippery. Unlike other harsh and aggressive cleaners, our cleaner is pH neutral (pH 7). Additionally, It does not contain any abrasives, acids, alkalis, salts, phosphates, d-limonene, artificial colors, fragrances or preservatives.Stone Soap Ultra is a highly concentrated water-based cleaner used by professionals in industrial and institutional industries and household applications. It has been specifically formulated for marble, granite, slate, limestone, travertine, onyx, terrazzo, cultured marble, ceramic and quarry tile. Use on all types of interior and exterior natural stone surfaces. Dilute this concentrated cleaner from 2 oz. to 1 gallon with water. Each gallon of this product makes 64 gallons of cleaner. DO NOT confuse this cleaner with the usual "spray and wipe" type cleaners, which are mainly water.Consequently, this concentrated product will clean down into all of the pores of natural stone surfaces. It removes dirt, dust, grime, soot, grease, oils, food and beverage spills, fingerprints and scuff marks.S&H is FREE Please contact technical support if you have any questionsWe offer a 100% guarantee that anything you buy from us will be exactly as described that you will be 100% satisfied or you can send it back for a 100% refund.