One vitamin that opens blood vessels and improves circulation
If you’re referring to the headline “One vitamin that opens blood vessels and improves circulation,” the vitamin most often being described this way is niacin (vitamin B3). What’s true about vitamin B3? Niacin can cause vasodilation of small blood vessels near the skin, producing the familiar “niacin flush”—warmth, redness, tingling or itching. This is a …









