Birttangs ginkgo herbal tea combines the powerful antioxidant properties of the ginkgo leaf with those of green teathe ginkgo tree the most ancient of all trees is revered in china as a symbol of long life and vitality in later life modern research suggests that the gingko leaf may be helpful for boosiing memory function increasing awareness and improving circulation birttangs ginkgo tea subtly blends ginkgo leaf with green tea apple and cloves to make an envigorating brew and a great