How will Ginkgo & Hawthorn help me? This product contains Ginkgo biloba leaves, and Hawthorn berries that contain high amounts of Vitamin C and bioflavonoids - nutritional compounds found together in nature. Antioxidant vitamin C is known to contribute to normal collagen formation for the normal function of blood vessels, and the protection of cells from oxidative stress. It also contributes to a reduction in tiredness and fatigue. What is Ginkgo Leaf? Ginkgo Leaf comes from the Ginkgo Biloba Tree, which is native to China and one of the oldest trees known to man. It has been found to date back 270 million years. Ginkgo’s benefits are widely recognised, and most commonly used in traditional Chinese medicine.