Ginkgo Biloba is One of the most interesting herbs of the last few years. Ginkgo Biloba improves brain function, including memory and alertness. Ginkgo Biloba Protects blood vessels, improves circulation, and is a powerful antioxidant. Best herb for ringing in the ears (tinnitis). Ginkgo Biloba, a powerful Antioxidant that has detoxifying qualities. Found to improve circulation by helping to increase healthy blood flow to skin.