Selenium is a biologically active microelement, forming some hormones and ferments and thus connected with the activity of all organs, tissues and systems. Selenium takes part in reproduction process, young organism growth and aging and greatly influences life time. Selenium is a powerful antioxidant, it stimulates antibodies formation and increases cold and infection protection. It participates in blood cells production, promotes support and prolongation of sexual activity.

Lack of selenium causes bad influenza.
Daily need in selenium is 0.02-0.1 mg.