Introduction: Calcirek is a combination of Calcium citrate 1000 mg, Magnesium 100 mg, Zinc 4 mg & Vit D3 200 IU.99% of total body calcium is stored in the bone. For strong & healthy bone, calcium is required. Calcium is not only required for strong bone but also it play vital roles in many body functions. For better absorption & utilization of calcium vitamin D3 is required. Zinc is necessary for bone mineralization & enhances DNA synthesis of osteoclasts. Magnesium controls calcium metabolism. Calcirek is a combination of Calcium, Magnesium, Zinc & vitamin D3 which is the ideal calcium preparation for strong & healthy bone & to repair fractured bone. Calcirek fulfills the extra need of calcium during pregnancy & lactation.