Ginkgo biloba is an ancient plant whose constituents have numerous beneficial effects on nerve tissue and circulation. Support by Ginkgo biloba extract (GBE) for normal brain function is based on neurosupportive effects. Research also shows GBE to have profound effects on circulation. GBE has been demonstrated to promote cerebrovascular and peripheral vascular circulation, supportingblood flow, glucose delivery and oxygenation throughout the body, especially to the brain and nerve cells.* Karuna's Ginkgo biloba extract is standardized identically to specifications for extracts used in clinical trials.