Regulates the functioning of the thyroid gland. Beats arthritis and inflamed joints. Stimulates skin health and melanin production. The shape, design and material of a copper container play a role in its health benefits. When you store water in a copper bottle at night, copper ions dissolve in this water in small quantities.This process is called the oligodynamic effect because this water now has the power to kill harmful microbes, fungi and bacteria. This item is made of pure copper.