Pure copper will naturally patina over time. Patination is a natural occurrence that appears on copper with age, giving the exterior a green, blue, or sometimes brown coating. The patina formation is a process that is caused when copper is exposed to oxygen and water. The patina that builds on the surface of the copper can rub onto your skin and can cause green markings on the wrist. This is usual with all pure copper jewelry.
The best way to prevent or prolong your copper from patination is to keep it dry and avoid water contact. If you shower, swim or frequently sweat with your copper jewelry on, you can expect that your copper jewelry will patina and show signs of discoloration from the original color.
MagnetRX offers magnetic jewelry made from other premium metals that do not tarnish or patina. These materials are Stainless Steel and Titanium. If you want to avoid the extra care required with copper jewelry, choose either stainless steel or titanium. You will never have to worry about your wrist turning green with one of these metals.