Poly's Ginkgo Biloba Extract Time release Capsules have been designed to release their nutrients gradually throughout 12 hours, which may increase peripheral circulation, thereby enhancing blood flow to the arms, legs and brain. May help maintain healthy memory function and mental alertness. Our time release technology makes taking the recommended dosage of the herb more convenient and easier to body assimilate. Poly's Ginkgo Biloba Extract Time Release provides a 12-hour release of the herbal benefits you seek at a low effective  cost per day.