Description: Da Huang drains Heat and purges accumulations. Drains fire. Properties: Bitter, Cold. Belongs to the Heart, Large Intestine, Liver and Stomach 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. The SUN TEN advantages include: 1. Broad Range - dispense your own formulas from commonly used TCM extract granules. 2. Quality Assured - Sun Ten Laboratories is a FDA cGMP compliant facility in the U.S.A. 3. Prestription labeling (print patient instructions right on the label). 4. Ship directly to your patients. 5. Free in-house professional consultation service. Return Policy: Please notify our staff immediately upon receiving damaged, defective, and shipment error products. They may be returned for replacement or credit. Unopened products can be returned for credit within 90 days of purchase after you have called us for a return authorization number. Please have your invoice number available when calling regarding a return. Returned products are subject to a 15% restocking fee. Opened, marked or tagged merchandise cannot be returned or exchanged. Special Formula Dispensary products cannot be returned or exchanged.