Magnesium is a major force when it comes to proper bodily function. Magnesium is needed for more than 300 Biochemical reactions in the body. It also aids in production of energy and protein. Crucial to nerve transmission, muscle contraction, blood coagulation, energy production, nutrient metabolism and bone and cell formation. As you can see, this essential nutrient is something we all must consume. Our magnesium muscle rub delivers magnesium topically and efficiently through skin absorption.