Purica Magnesium Bisglycinate - Effervescent Raspberry - Magnesium is an essential mineral that helps the body to metabolize carbohydrates, fats, and proteins; aids in the development and maintenance of bones and teeth; helps tissue formation and to maintain proper muscle function. Magnesium Glycine is a bioavailable form which absorbs easily and does not have a laxative effect. Due to the calming effect of both magnesium and glycine, this combination can be useful for chronic pain.