Vitamin K-2 is known to help prevent coagupathy,
Vitamin K-1
and K2 are both essential to normal clotting,
and smaller buising would indicate you were clotting faster.
Vitamin K is a liver friendly vitamin and several studies have shown it does reduce the risk of liver cancer substantially. Liver cancer is a great risk for those with HCV or cirhosis.. Do not take it if you are on blood thinner like cumadin or warfarrin, and check with your liver doctor, but I think this is an important vitamin.