Iron Out has been the number one brand because it works better on rust stains than any other product. Iron Out chemically changes rust and iron into a clear, soluble state that easily rinses away without scrubbing. It does not contain harsh or abrasive chemicals and is safe on a number of different surfaces including toilet bowls, toilet tanks, white clothing, sinks, tubs, tile and showers, appliances-washers and dishwashers, water softeners, concrete and exterior walls.
