Red kooga korean ginseng ginkgo biloba is formulated to help maintain mental alertness and to help support healthy circulation to the extremities each red kooga product is formulated with only the finest quality korean panax ginseng a herb used in the orient for thousands of years that helps promote vitality and maintain mental alertness each ginseng plant matures for four to six years before being considered for use in red kooga red kooga ginseng ginkgo biloba contain a guaranteed conte