Ginkgo Biloba Leaf has been part of Chinese medicine for years. This lead is full of anti oxidants and anti - inflammatory benefits. It has also been known to treat blood disorders and memory issues. If you are epileptic or prone to seizures, avoid ginkgo. Large amounts of ginkgotoxin can cause seizures. Ginkgotoxin is found in ginkgo seeds and, to a lesser extent, ginkgo leaves. It can be used for tea or culinary purpose. It does not contain caffeine.