Which extract is known to increase blood flow to the brain and improve energy production in nerve cells?

Ginkgo Biloba is recognized for its ability to enhance blood circulation, particularly in the brain, due to its effects on blood vessel dilation. This improvement in blood flow can help promote cognitive function and potentially support memory and focus. Ginkgo Biloba achieves this by acting as an antioxidant and reducing inflammation, which can further benefit neuronal health.

Additionally, Ginkgo Biloba has been studied for its ability to protect nerve cells and support energy production within them, making it a valuable extract for improving overall brain function. The other options, while also having their own benefits, do not specifically target brain blood flow and energy production to the same extent as Ginkgo Biloba. This specific focus on cerebral blood flow and neural energy makes Ginkgo Biloba the most appropriate choice for this question.