This natural remedy has been used for increasing circulation to the scalp and brain and for peripheral circulation of the blood. Almost any condition that can be helped with increased blood flow is likely to benefit from the regular use of Ginkgo leaf. Studies have been made with geriatric patients which show that regular use of the leaf for at least eight weeks measurably improves senile dementia. It has been beneficial with circulation to the brain, peripheral blood circulation, coldness, Alzheimer's and senility and improvement of sociability and mood to name just a few. It is rich in shikimate. People have used this herb for: raynaud's disease arthritis rheumatism arteriosclerosis eye weakness tinnitus retinopathy meniere's disease vertigo glaucoma spike protein