Vitamin D3-5000: Vitamin D3 is cholecalciferol made from lanolin derived cholesterol from the wool of sheep. Vitamin D3 is the kind your body makes. Which makes it more efficient in absorption. Vitamin D2 is not the kind the body makes. Therefore, it's less efficient and you use more. It's also usually cheaper. One capsule provides Vitamin D3125mcg (5000IU). (cellulose, stearic acid) 100 VGTM Caps
