Source Naturals Mag Activeª 4 fl oz

Magnesium supports the heart, bones, and muscles, and plays a part in energy generation and in the immune, endocrine and nervous systems. Source Naturals Mag Active(TM) is a purified liquid concentrate of activated ionic magnesium, in a broad spectrum of many other essential and trace minerals. Mag Active is naturally derived from the Great Salt Lake and has had 99% of the sodium removed.