Vitamin K, (In German call koagulation) has long been used to promote blood clotting and prevent bleeding, particularly in

Vitamin K Food Source
cases of aspirin poisoning or blood-thinner overdose. It’s also a favorite among plastic surgeons, who use large doses on their patients to prevent post surgery bruising.
Now these benefits are accessible to the general public as well. Research shows that applying vitamin K topically can prevent and heal bruising from laser surgery and fade away bruises, even those occurring from purpura senilis.
In a study of 12 people with significant bruising, a longtime vitamin K investigator, applied vitamin K cream to one arm of each patient and an identical cream without vitamin K to the other. After 1 month, the arms treated with vitamin K had significantly fewer bruises than those treated with plain ointment.

Vitamin K
Even nutritionist also had use vitamin K cream on one side of a bruise but not on the other and found that the side treated with vitamin K healed in 5 to 7 days, while the untreated side took 11 to 13 days to heal.
Even though getting plenty of vitamin K—the Daily Value is 80 micrograms—may be helpful, when you have a bruise or an area prone to bruising, you want large doses of vitamin K right where you need them, and the best way to get them there is topically.