Tile and Grout Cleaner is a non-acid, concentrated and powerful cleaner that removes soap scum and hard water stains from tile and grout without damaging the surface. It is a strong biodegradable formula that works well on greasy dirt. Made with proprietary specialty surfactants that are specifically designed to attack water deposits, minerals, oils and soap scum commonly found in tiled bathroom areas. There is no bleach in the cleaner.