To keep your jewelry dust and dirt free, and to prevent unwanted oxidation or tarnishing, store your pieces in a jewelry box with the lid closed, or in a ziploc bag. Wrapping your jewelry in a soft cloth will also keep it clean and prevent it from oxidizing. Wrapping your pieces individually will prevent scratching. Oxidation is a natural process that turns metal darker in color. High humidity and individual chemistry are factors in this process. Always apply hairspray, perfume and cosmetics before putting jewelry on. Mild cleaners and polishing cloths can be used to brighten and restore jewelry.
