He Shou Wu is a traditional Taoist Herb & Jing Tonic that has a history of use as a longevity, anti-aging, blood-building, beauty, & rejuvenation food. Regular consumption of this herb may do the following: tonify and nourish the blood, hair, skin, nervous system, sexual center, shen (Spirit), and Jing (primary essence/life force). It is a tonic for the endocrine glands may help improve stamina good for resistance? to cold promotes red blood cells enhances immune function increases antioxidant activity.