Several recent studies have shown that vinpocetine, a health supplement that originates from the periwinkle plant, can provide a significant boost to memory and concentration. A recent study published in the Annals of Medical and Health Sciences Research included patients with cognitive impairment. It showed that taking a 5 milligram dose twice a day for twelve weeks was enough to improve memory and concentration. Like other highly effective brain supplements, vinpocetine is able to cross the blood-brain barrier, allowing it to directly affect the brain, leading to improved cognition. Vinpocetine is so beneficial because it acts in a few different ways. It has anti-inflammatory qualities, which can help improve the function of the mind and body, and its antioxidant properties and vasodilating effects (widening of blood vessels) are likely responsible for the improvement in cognition. Neu-roimaging studies have shown an increase in cerebral blood flow, which is especially important for those that have cerebrovascular disease. Vinpocetine is avail- able as a supplement by itself, but many companies mix vinpocetine with other compounds for an increased effect.