HydroxyCal provides a potent blend of essential vitamins and minerals to support healthy bone formation and maintenance. Citrate-bound calcium and a freeze-dried, whole-bone bovine extract are included, offering bone matrix proteoglycans and trace minerals which are optimal for promoting bone maintenance and regeneration. A generous dose of vitamin K and the bioavailable vitamin D3 are present, working with vitamin C and manganese to foster strong, resilient bones.*