Magnesium Chloride is a safe, small molecule of magnesium that is essential to over 300 systems in the human body.  When someone is deficient in magnesium they can start to have other issues such as migraines, sleeping trouble, and even leg and muscle cramps.  Many things deplete us of magnesium and in our day to day lives sources of magnesium are limited. This is an alternative way to obtain magnesium for people not wanting the side effects of oral supplements.