Goo Gone Grout & Tile Cleaner - 28 Ounce - Removes Tough Stains Dirt Caused By Mold Mildew Soap Scum and Hard Water Staining - Safe on Tile Ceramic Porcelain 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