Description: Ba Zheng San clears Heat. 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. The SUN TEN advantages include Broad Range - dispense your own formulas from commonly used TCM extract granules. Quality Assured - Sun Ten Laboratories is a FDA cGMP compliant facility in the USA.