It promotes anabolic processes in organism, takes part in some ferments function (cytochrome oxydase, tyrosinase and others), synthesis of skin, hair and eyes pigments, hemoglobin, influences internal secretion glands function.

Daily need in copper is 2-5 mg. It is accumulated in liver and bones.

It can be found in cereals, bread, tea, potato, fruit, nuts, mushrooms, beans and soya, in animal and bird liver.