Ginkgo has become very popular as of late due to its remarkable ability to improve circulation, especially poor circulation to the brain (a cause of memory loss). Also it has strong antioxidant activity.

Seeds are used in Chinese medicine to relieve wheezing and reduce phlegm; also given to treat a weak bladder and incontinence. The leaves are traditionally used to treat asthma. Can reduce the possibility of stroke. One of the most useful herbs for senile dementia. A possible treatment for auto-immune problems, multiple sclerosis, and complications of organ transplants.

With its ability to "scavenge" reactive oxygen forms known as free radicals, ginkgo leaf extract directs antioxidant effects to the brain, central nervous system, and cardiovascular system. This is one of the mechanisms that make it promising in treatment of age-related declines of brain function.

Clinical use is supported by more than 400 scientific studies conducted since the late 1950s. Ginkgo extract has also been studied for the treatment of ringing in the ears (tinnitus), male impotence, degenerative nerve conditions such as multiple sclerosis, and other diseases. It has shown potential to relieve difficulties with short-term memory, attention span, and mood in early stages of Alzheimer's disease by improving oxygen metabolism in the brain.

Some individuals have shown hypersensitivity to ginkgo leaf extracts including rare cases of gastrointestinal upset, headaches, or skin allergies.