Vitamin K is one of the most powerful anti-blood clotting medicines available. Used for centuries to treat thrombosis, it can also be effectively used to treat spider veins if a regular regimen is followed. Because vitamin K is a relatively unknown vitamin, is not commonly included in over-the-counter multivitamin tablets. For people who want to use it to treat spider veins, a prescription or a visit to a pharmacy may be required.

Things You'll Need

Get tested for a vitamin K deficiency. This can be done through a simple blood test that measures the level and quickness of blood clotting. Most doctors will require such a test before they prescribe high doses of vitamin K.

Talk to your doctor about vitamin K injections, also known by their brand name, Aqua-Mephyton. They can be given under the skin on a weekly basis to help treat spider veins. This is especially helpful for patients who need medical supervision while they are under treatment.

Consult a medical professional before starting a regimen of vitamin K. Due to its powerful effect on constricting veins, vitamin K can be dangerous for people who have heart problems or other medical issues where perfect circulation is essential.

Use vitamin K creams to help the skin covering spider veins become stronger. The cream will enter your circulatory system, as it is absorbed through the skin and eventually reaches the blood. This works especially well when combined with zinc, since this stimulates the formation of collagen and helps with elasticity.

Take vitamin K tablets on a daily basis if you are in good health or have medical clearance. While the RDA (Recommended Dietary Allowance) for healthy adults is 65-80 mcg, clinical results cannot be seen in such low doses. Toxicity is rare, but intake must be monitored to ensure safety.

Increase your intake of foods high in vitamin K, such as beef, cauliflower, soybeans, spinach and cabbage. Natural vitamin K is not stored in the body, which means the risk of toxicity is almost nonexistent. Artificial vitamin K, on the other hand, can be toxic at high levels.


  • Don’t expect miracles. While vitamin K is often used along with other therapies or in minor cases, people who suffer from severe cases may need more aggressive treatment, often involving lasers or surgery.