Lifestream Natural Calcium has a unique porous ‘honeycomb-like’ structure which reacts particularly well in the digestive system and gives it high absorption properties. A Lifestream Natural Calcium molecule has a very large surface area. This allows faster solubilisation and rapid ionisation of the calcium. It also contains other important minerals necessary for the absorption of calcium including magnesium, boron, selenium, zinc, copper and iodine.