Ginkyo dry extract contains 25% of the plants active ingredients - ginkgo flavonoids. Only Ginkyo tablets contain the LI 1370 extract, made from cultivated Ginkgo leaves, which has been extensively researched into its impact on memory and other aspects of cognitive function. Helps maintain short term memory and concentration. Supports healthy circulation to the extremities including the brain. It can also help maintain short term peripheral circulation. Ginkyo dry extract contains 25% of the plants active ingredients - ginkgo flavonoids. Only Ginkyo tablets contain the LI 1370 extract, made from cultivated Ginkgo leaves, which has been extensively researched into its impact on memory and other aspects of cognitive function. Helps maintain short term memory and concentration. Supports healthy circulation to the extremities including the brain. It can also help maintain short term peripheral circulation.