One vitamin that opens blood vessels and improves circulation
One Vitamin That Opens Blood Vessels and Improves Circulation” — What’s the Truth? The vitamin most often behind this claim is niacin (vitamin B3). Niacin can cause temporary widening of small blood vessels, which produces the familiar flushing, warmth, tingling, or itching sensation. But that doesn’t mean taking niacin will fix poor circulation. ⚠️ Don’t …









