specification: low acid: ginkgolic acid smaller than 5ppm introduction: Ginkgo tree has been around for 200 million years. Its amazing vitality has attracted an increasing exploration into potential application in health, foods and supplements. It contains large number of active compounds, the most important of which are flavanol glycosides and terpene trilactones. Active compounds in Ginkgo extract improve blood circulation, discourage clot formation, reinforce the walls of the capillaries, and protect nerve cells from harm when deprived of oxygen. Ginkgo biloba extract can be used to treat various ailments, and is effective in neurological disorders, such as: difficulties in concentration and memory, memory impairment, mental fatigue, dizziness, tinnitus, headache, lack of energy and so on. What's more, it has good efficiency in anti-oxidant and free radical scavenger. It can cure coronary artery disease and angina, retinal arteriosclerosis , acute cerebral infarction and so on. our quality: Raw material the high-quality ginkgo biloba leaves are selected from the same GAP cultivation plantation as Ginaton and Tanakan Produce we have the TCM extract producing line with an annul output of 60T of Ginkgo biloba extract, which is the first one to past GMPauthentication in China, producing high-quality standard series of Ginkgo biloba, to ensure the good manufacturing practice and enouth supply. Technology Eight invention patents to protect the extraction technology. Quality control Control the quality of the product by Fingerprint in the whole course Market we are the biggest supplier of raw material of ginkgo biloba preparation, our products are exported to all over the world such as Europe, America,Japan, Southeast Asia and so on.