Daily Vitamin D3 is colecalciferol 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. Your use less also Vitamin D2 is not the kind the body makes. It's therefore less efficient & you use more. It's also cheaper usually. Each capsule contains 5000 IU of vitamin D3. Vitamin D3-5000 is available in bottles of 100 vegetarian capsules. (C, MS)