This Vitamin K supplement is well balanced with a combination of vitamins A, C, D3, and E, that help it work more effectively. It is one of the few that has 3 forms, MK-7 staying in the body longer than the MK-4 form of K2, and MK-4 taking a higher dose for effectiveness than MK-7 does. It is important to note that MK-7 manufacturers and supplement vendors have been putting out hype about MK-7, and further research is needed to determine whether MK-7 is superior to MK-4.