trained herbalist can tell if an herb is good or not simply by judging its appearance, taste and smell. For the uninitiated, it is critical to deal with an ethical and reputable source. Dr. Xie's Jing-tang Herbal has the quality control guarantee (sources and ingredients). Please review Our Quality Control Procedure.

All of the herbs used in Dr. Xie's Jing-tang Herbal formulas are grown in China, with the majority produced by farmers. Some are also grown in the wild. We use TLC (thin layer chromatography) and HPLC (high performance liquid chromatography), special procedures which insure potency and test for active constituents. Every batch of herbs is tested before, during and after processing.

All these raw material and herbal products comply with the new stringent Good Manufacturing Practices (GMP). GMP certification means that the site and methods employed in the production of our herbs has been subject to a thorough quality control investigation and is certified to be in compliance. Tests for moisture content, dissolution, heavy metals (lead, arsenic, mercury, cadmium) and microbial content (including bacteria and fungi) are performed on every batch of finished product. When the products arrive in the U.S. they are subject to an additional review by the FDA, ensuring that the products you receive meet every safety standard.

Chinese herbs can be categorized as top, middle and low grade. To ensure the herbal quality and efficacy, we have always used only top graded herbs for all our formulas. Because of this reason, we have successfully helped  veterinary herbalists help their patients since 1999. We have received numerous and frequent compliments from both veterinarians and pet owners, we have never had any complaints regarding the quality of our herbal products. (Please click here to see our customers' feedback).