The Microcosmoses Jewelry, don't need a special care. Use  a  soft  polish  clothe   to remove dust and fingerprints.Thanks  to their high  resistance and their robust material, the jewelry can be  worn on all occasions. On the other hand, like all jewelry, we recommend removing it for each sporting event, during  the  shower,  and  before  putting  on  perfume.Hypoallergenic, Nickel Free, Lead Free, Cadmium FreeDoesn't  tarnish, doesn't  get  green  or black.