Ginkgo Biloba Dietary Supplement to boost brain health and weak memory. Solgar Ginkgo Biloba is a plant extract with beneficial properties for brain and respiratory health. It helps improve circulation, especially in the brain, and is useful in cases of poor memory, depression, loss of alertness, tinnitus, cold extremities, and senile dementia. Solgar Ginkgo Biloba also offers antioxidant and anti-allergic properties. As a dietary supplement for adults, take 1 vegetarian capsule daily, preferably with food.