Schisandra chinensis. Wu Wei Zi or the Five Flavoured Berry is considered one of the 50 fundamental herbs used in Chinese Medicine. Said to cleanse and aid liver function, support adrenal function and lowers stress, act as a digestive aid, balance the immune system, while normalizing the nervous system. Schisandra has also been studied based on its numerous anti-oxidant, anti-bacterial, and anti-depressant properties.