Mined from deep underground at the site of the ancient Zechstein Sea in The Netherlands, Swanson Ultra Magnesium Oil is a super-saturated combination of pure magnesium chloride and water—nothing added, nothing taken away. Suitable for daily use. It's non-greasy and absorbs rapidly leaving little residue and no unpleasant scent. Magnesium oil consists of a supersaturated solution of magnesium chloride and pure water.
