Daily's Vitamin D3-800 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. Vitamin D3-800 is Kosher certified. One capsule provides Non-GMO Vitamin D3 20 mcg (800 IU). (cellulose, stearic acid, Gluten Free, Kosher Certified, Soy Free) 120 Vegetarian capsules per bottle.