You won't get far without magnesium. This mineral manages the production of energy, while keeping your muscles flexible and your bones strong. Athletes can push themselves further and recover faster with magnesium. , The most significant ingredient is magnesium chloride (MgCl2) Magnesium chloride is the naturally-occurring form of magnesium and is best absorbed through the skin. It has a high level of biological availability, which is further enhanced with the addition of OptiMSM.