My dog was prescribed the ophiopogon formula and a diet plan was recommended. Before I go ahead with either I wanted to know a few things: 1. Is there a 3rd party that certifies/reviews your products? 2. Are your products non-gmo? 3. Are your products organic? 4. Are your products sourced in the USA? 5. Are any of your products, especially the ophiopogon, sourced in China? Thank you for your time and consideration.

Thank you for your question and your interest in Chinese Medicine! Jing Tang has rigorous quality control procedures and we trust their company and the products they produce for veterinarians to sell.You can read more about Jing Tang's quality control and manufacturing process on Jing Tang's homepage and on the "Quality" tab on their website. Here's a link to their homepage: http://new.tcvmherbal.com/. The Jing Tang herbs are not certified organic or non-gmo.  Since all of the Jing Tang herbal formulas contain Chinese herbs, the raw materials come from China. They have a quality control team stationed in China observing the manufacturing. Some formulas are produced in Florida in the USA. Here's a link about the company's process for getting herbs from China: http://new.tcvmherbal.com/Quality/Testing.