There is no evidence that copper can be absorbed through the skin in more than trace amounts. If it were well absorbed, it might cause copper poisoning. There is no good evidence that copper bracelets reduce pain or inflammation; there is fairly good evidence that they have no clinical effects. As an alloy, copper is extremely durable and can hold up well over time, despite daily wear. Because copper is durable, it's a great candidate to use as a jewellery metal. Over time, copper will not rust but develop a natural green patina. Exposure to heavy metals, like copper, is another on-the-job hazard when you have severe eczema. Copper compounds affect people differently. Cadmium and lead are toxic and build up in the body over time. This can lead to changes in your immune system, triggering eczema and asthma. "The data suggests copper is a safe skin ingredient and not known to be an irritant," Dr Mansouri notes. "It may therefore be more suitable for sensitive and reactive skin than vitamin C, but in my opinion, both are solid ingredients in a skincare routine. However, it is not recommended that pregnant women wear copper jewellery or any other metal which may be absorbed into the skin. People with heart conditions or those who have a pacemaker also should not wear magnetic copper bracelets. If you wear your copper bracelets, rings and necklaces daily, the natural abrasion against your skin will keep it nice and polished. – To prevent your copper from tarnishing while in storage, keep it in an air-tight environment (such as a ziplock bag). If you are looking for high quality, high purity and cost-effective copper oxide, or if you require the latest price of copper oxide, please feel free to email contact mis-asia.