Magnesium Bisglycinate pre-chelates Magnesium with amino acids, making it easier for the body to absorb. Because of this, the body can perform at its highest level. Magnesium Bisglycinate is an excellent source of Magnesium, and as such it helps relax muscles and can aid in fighting depression (a known side effect of a lack of absorbed Magnesium). Source: https://www.vitasave.ca/magnesium-bis-glycinate-200.html More