Many jewelry sellers on Etsy offer care instructions for the necklaces they sell. As a general rule, to keep chain necklaces looking new, avoid wearing them when exercising as sweat and natural oils could tarnish the finish of your necklace. For a simple way to clean your chain necklace, soak it in mild dish soap and warm water, and gently rub the necklace with a soft cloth. Rinse it and buff with a soft cloth until dry.
When storing your necklace, try to place it separately in an airtight bag or box. This can help prevent your chains getting tangled and tarnished.