The Smart Herb Brain & Circulatory System Formula Dietary Supplement Natural Balance uses only premium grade Ginkgo Biloba extract, standardized to 24% flavone glycosides with the proper balance of 6% terpene lactones. Discover Natural Balance Since 1983, Natural Balance has energized people's health and well-being by offering unique specialty supplements. Scientifically blending select high-quality ingredients into proprietary formulas is our art. Helping people live healthier, more enjoyable lives is our passion. Super Ginkgo Biloba Plus with Gotu Kola is formulated with high-quality raw materials for maximum support. Ginkgo Biloba leaves come from a large tree native to Asia including Japan, China and Korea. Gotu Kola is an herb used in Traditional Chinese and Ayurvedic medicine. Fo-Ti an herb cured from the root of the plant.