Biogena 7-Salt Magnesium - the clever way of magnesium. Seven magnesium compounds, perfectly balanced and combined - with a broad solubility spectrum. The solubility of each magnesium compound in this product changes in response to the naturally fluctuating pH conditions of the gastrointestinal tract. This provides a good magnesium supply. * Magnesium is involved in almost all metabolic processes in the cell. This mineral is particularly important for muscle function, nerves and the nervous system, for building normal teeth and bones as well as for the electrolyte balance within the body.*