When everything else has failed ...
Lithothamnium derives its calcium from a natural seaweed product harvested from the sea bed off the South West Coast of Ireland. Here amongst the cleanest and purest waters found in the world grows the small red seaweed Lithothamnium which is composed of a wide variety of body essential nutrients including Calcium, Magnesium, Boron and Zinc.
The Seaweed eventually grows into a hard and brittle coral-like structure. Local tide patterns deposit the seaweed in large deep beds. The material is dredged from the ocean floor, washed thoroughly in fresh water and the highest quality fraction is separated to be taken to an ISO 9002 certified food facility. Here the material is carefully inspected, sterilized, and dried then milled to the required particle size.