Bar Keepers Friend is the premium household cleanser. With a non bleach formula, it's is recommended for cleaning stainless steel cookware and sinks, glass and ceramic cooktops, solid surface countertops, porcelain and acrylic bathtubs and more. It's the best top-selling cleanser for removing rust, tarnish, hard water stains and lime scale. Premium cleanser and polish, makes household surfaces shine like new again. Best selling cleanser to remove rust and tarnish from copper and brass. Removes tough stains, lime and hard water stains. Can be used on chrome, stainless steel, porcelain, tile, ceramic and fiberglass surfaces.