property Improves memory and concentration. Increases mental performance. Improves blood circulation in the body. Contributes to healthy brain function. It has antioxidant action. Improves macular degeneration. Helps with dermatological problems. Activates microcirculation in the scalp. Dosage Take 1 capsule daily or as directed by your doctor. Consult your doctor if you are pregnant, nursing, taking medication, or have a medical condition. Ginkgo may interact with certain medications, such as heparin and warfarin. It is important to consult your doctor.