Both cheap and effective special silver cloth, generally buy a silver necklace will be sent with a silver cloth, or to sell silver jewelry place to buy a back, with a silver cloth gently wipe oxidized silver necklaces, will soon become shiny again.
Method 2: Toothpaste
Squeeze the toothpaste from your daily toothbrush onto a soft toothbrush, and brush the oxidized silver necklace back and forth, pay attention to the brush, do not dip the water, and do not put it into the faucet while rinsing while brushing.