1. Try to keep the jewelry dry, avoid swimming, bathing, hot springs, etc. 2. Do not touch chemical reagent products when wearing it, such as perfume, cosmetics, laundry detergent, etc. 3. Silver jewelry is easy to oxidize, and it will oxidize and turn black after long-term storage. This is a normal phenomenon, and try to keep it sealed when not wearing it. 4. After the silver jewelry turns black, you can use toothpaste or the gifted silver wiping cloth to wipe it to restore it