Connoisseurs Jewelry Cleansing Foam is a highly effective jewelry cleaner in a newly formulated foam delivery system. This All Purpose product will clean all of your jewelry. Your diamonds gemstones pearls gold platinum and costume jewelry. Its foaming action safely melts away dirt and grime in no time. The product is non-toxic and biodegradable. Here is how to use it: Apply the foam directly to your jewelry. Let it soak for 30 seconds. Work the foam into difficult places if needed with a soft brush (not included) then RINSE THOROUGHLY with warm water and dry. Repeat if needed.