Pure Lab Vitamins Magnesium Glycinate - Raspberry Lemon - Magnesium is a mineral that is necessary for over 300 different biochemical reactions in our body. Its roles include, but are not limited to, the transport of calcium and potassium across cell membranes, heart beat regulation, muscle function and nerve impulse conduction. It is involved in the synthesis of proteins, energy production, and blood glucose metabolism. These traits make magnesium status influential in blood pressure, sleep, diabetes, and chronic muscle pain syndromes. Pure Lab Vitamins Magnesium contains a unique formulation that combines fully reacted Magnesium Glycinate with Magnesium Oxide and L-Glycine chelated (bonded) together. It is this chelation that dramatically improves the absorption of this product.