The Green Nutritionals Marine Magnesium Capsules are a natural magnesium supplement derived from the mineral-rich waters off the Irish Atlantic coast, providing 260mg of elemental magnesium per two-capsule serving. This formula combines Aquamin S (Lithothamnium calcarium, 53%) and Aquamin MG (magnesium hydroxide, 45%) to deliver a highly bioavailable source of magnesium complemented by a multi-mineral matrix of 74 plant-source minerals and trace elements that work synergistically to enhance absorption. Packaged in glass and vegan. 60 day supply.