I have been on this product for many many years under the old name Calcium Adsorption. It is the best product as I am 81 now & have very very little arthritis: my fingers are perfectly straight - I have a friend who took it many years for kidney stones etc and she has had no more problems since taking this product. Another friend took it for many years to keep the Calcium/Mag etc balanced in her body and never had troubles with joints, back etc. This product keeps Calcium, Mag, etc from building up in the wrong places causing diseases of this type. I am holistic, organic, herbal, all natural most of my life & am on NO Rx or OTC products for many many years. This product really does work for many Calcium related problems.