Ginkgo biloba is an herbal supplement known for antioxidant and anti-inflammatory properties, primarily used to support brain health (memory, focus, dementia symptoms), improve blood circulation (to legs, heart, eyes), and potentially help with anxiety, asthma, and tinnitus, though research varies on its effectiveness for some conditions like preventing dementia or improving memory in healthy adults. It works by dilating blood vessels, increasing blood flow, and fighting free radicals