Grape Seed Extract shows great promise as a treatment for poor circulation in the legs (peripheral venous insufficiency).
In a study of over 4,700 women with this condition, four out of five experienced improvement after taking 150 milligrams of this preparation twice a day for three months. Their legs felt lighter and did not burn, prickle or tingle as much and were less swollen and blue. They also had fewer leg cramps at night.