Note that Puckilo is wet after wearing silver, and then dry it, so it is not easy to change color. Don't wear it 24 hours a day, and take it off when you sleep, which will also delay the blackening of silver ornaments. If it turns black, you can wipe it with a silver cloth and you can restore its original appearance.
A jewel replied that gold does not change color as easily as silver jewelry, and both should avoid contact with cosmetics.