WHAT IS VITAMIN K2? Vitamin K2 is a fat soluble vitamin which stays in the blood longer than K1 and is much more bioavailable, allowing it to accumulate extra supplies.  OUR HIGH STRENGTH VITAMIN K2 SUPPLEMENT High Strength Vitamin K2 provides exactly what you would expect, high-quality and high strength vitamin K within a vegetable cellulose capsule. Each capsule provides 200μg of Vitamin K2 (MK-7). WHAT DOES VITAMIN K DO? Vitamin K contributes to normal: Maintenance of bones Blood clotting