The beauty of these metals is that they can develop a rich patina with wear. Exposure to salt air/water will bring on bits of green patina. To protect the original finish, always remove jewelry and/or hair accessories when washing hands, showering, or swimming. Unfriendly chemicals can also cause unpredictable reactions, so put jewellery on last after you have applied perfume or hair product – this applies to all jewellery.
To restore to a bright finish, clean with a metal cleaner. We recommend the biodegradable Penny Brite copper & brass cleaner, which is available from Koodak jewellers suppliers in Melbourne: www.koodak.com.au or other online retailers such as Amazon.