This extract is made using root that is carefully wildcrafted from Russia under the authority of a company which specializes in Russian adaptogens. There are many species of rhodiola that are erroneously sold as Rhodiola rosea, because the quality and identity of the product is often overlooked. Oregon"s Wild Harvest cares about integrity and guarantees the correct genus and species.Rhodiola, also known as Arctic Rose, comes from the Arctic regions of eastern Siberia. Arctic tribes valued this herb as an Adaptogen, and used it to increase physical and mental stamina. The historical use is documented by the ancient Greeks and in scientific literature from Scandanavia, Europe, The Soviet Union, and Iceland as early as 1725. It was popular with the Vikings for enhancing mental and physical endurance and was included in the first Swedish Pharmacopeia in 1775. New scientific studies now support the traditional use of this valued herb. Adaptogens increase resistance and adaptation to stress, helping to build stamina and vitality.