Taurine, Ginseng and Ginkgo. Everyone needs a jump start from time to time, in the morning, at afternoon break or before a challenging activity. Hansen"s energy is carefully formulated with the amino acid Taurine, Siberian and Korean Ginseng, Ginkgo Biloba, key B Vitamins and other ingredients, which are intended to provide a positive energy boost. Hansen"s energy is a refreshing, great tasting, lightly carbonated citrus flavored drink. Have a stimulating Hansen"s energy when you need to be your best. It"s the real deal.