Schizandra (or schisandra) is major tonic herb in Chinese medicine, long prized by everyone from emperors to family herbalists for its ability to prolong youth, increase stamina, and prevent fatigue. Schizandra products are derived from the small, bright red, berry-like fruit of a hardy vine of the magnolia family. Schizandra has also traditionally been taken to beautify the skin, strengthen the sex organs, and promote mental function. Among the ailments it was used to treat are night sweats, asthma, cough, and insomnia.