Description: Shan Zhu Yu stabilizes the Kidneys and astringes Jing and Body Fluids. Stops excessive sweating and supports that which has collapsed. Properties: Sour, Warm. Belongs to the Kidney and Liver Channels. Precautions: Pregnant and nursing women should consult physician before use. SUN TEN Laboratories was established in Irvine, CA, in 1991. It is the largest distributor and cGMP certified manufacturing facility for SUN TEN located in America.