Cholecalciferol is a form of vitamin D3, which is important for the proper absorption and utilization of calcium and phosphorus in the body. Cholecalciferol softgel capsules are a common form of vitamin D3 supplement. KCC D3 cholecalciferol softgel capsules are used to treat and prevent vitamin D deficiency, which can lead to conditions such as osteoporosis, rickets, and hypocalcemia. They may also be used in conjunction with other treatments for certain medical conditions, such as psoriasis, osteomalacia, and chronic kidney disease. It is important to follow the recommended dosage instructions provided by your healthcare provider or the product label.