Copper is the one of the oldest metals discovered on earth. 
It is a beautiful metal with a warm, slightly pink color, which is a component of gold alloys. 
It is fully recyclable, corrosion-resistant, durable, ductile, conducts electricity and heat efficiently, easily forms alloys. 
Copper acts as a disinfectant, killing bacteria and microorganisms. 
In addition, it is also antifungal. 
Jewelry uses its bactericidal and antimicrobial properties, strengthens the condition of the skin, 
affects the regulation of the hormonal balance in the body.

Copper ornaments can stain the skin. This is because copper reacts with our skin, leading to its oxidation, the so-called corrosion. 
Copper significantly colors the skin when we lack adequate vitamins and minerals, and when we are sick or stressed. 
However, any dirt on the skin is easy to wash off.

Copper jewelery is perfectly cleaned by placing the jewelery in hot water with the addition of citric acid.