For example, Inland Sea Water is the brine closest to natural GSL Water and it is many times more concentrated than regular sea water. It has the highest concentration of sodium, with the lowest concentration of magnesium in our lineup. On the other end of the spectrum, SolarSea™ 110 is our most premium magnesium blend, typically taking two years for nature to perfect. Thus, we have different options for various applications. Additional minerals can be blended into the mix, such as potassium which naturally occurs in low levels in the GSL.