100mcg (4000IU) Vitamin D3 (as Plant-based Cholecalciferol from Wild-harvested Lichen). 100% natural all-trans vitamin K2 as MK7. VITAMIN D3 - K2 - B12. Highest bioavailability and bioactivity: Contains only 100% natural vitamin D3 from lichen and natural vitamin K2 in its most effective form.