Goo Gone Grout Tile Cleaner A brand-new, unused, unopened, undamaged item Grout cleaner; breaks down the toughest grout stains caused by mold, mildew, soap scum and hard water Tile cleaner; removes dirt build up and stains Cleans mold; removes mold and mildew stains from your grout and tile Works on dirt buildup, mold stains, mildew stains, soap scum and hard water stains Safe for use; on grout and ceramic/porcelain