LIVER OF SULFUR 8 oz The most effective oxidizer for silver, copper and brass quickly and easily, Createsthe blackened look popular in vintage jewelry. . This product is used to permanently "antique" silver and copper. It will not rub off or disappear during ultrasonic or steam cleaning. Easy to use--simply mix a small amount with water and apply to the clean metal component. Let dry and re-polish surface highlights with a JSP® Polishing Cloth, 8ozs lump form, simply mix with hot water. Also spelled Liver of Sulphur.