Source Naturals – Vitamin K 500mcg 100t

Vitamin K occurs in two forms – K1 and K2 – this product contains the K1 form. Vitamin K1 is primarily transported to and used by the liver and is best known for its role in the activation of several blood clotting factors. It may be used to treat people with low levels of the blood clotting protein prothrombin (hypoprothrombinemia), or to reverse the blood thinning effects of warfarin.