Nutra-Life Magnesium Hi-Zorb is a unique formula that contains premium quality Magnesium Glycinate as well as Magnesium Amino Acid Chelate. Both these forms of organic magnesium are highly bio-available and are more easily absorbed in the body when compared to Magnesium Oxide. This form of magnesium is also very gentle on the stomach and is particularly good for those who have sensitive digestive systems.