Removes Tough soap scum, dirt hard water sports and other bathroom stains without scrubbing. Where to use. Bathroom titles, chrome, shower curtains and doors, tub and sink surfaces and fixtures, including porcelain, fiberglass and synthetic marble. Non-Abrasive. Work on contact. Cleans, shines, deodorizes and leaves a nice fresh fragrance. Do not use on natural marble or stone. If in doubt, spot test first. Contains no phosphorus.