Sterling silver: Please store sterling silver in a ziplock bag away from air and moisture. This will help prevent tarnishing. A soft polishing cloth and products like Tarnex can also be used. Silk: Silk is a natural fiber that will break or fray if exposed to moisture over time. Please remove your necklace that is tied on silk before showering, swimming or sweating. It will last much longer if you do. Hang your necklace or lay it flat in a drawer. Remember that I use all natural materials. These tend to break or crack if dropped, so be careful with them. Some stones will naturally fade in the sun so store your jewelry out of direct sunlight.