• Revolutionary Herbal Medicine

Our Story


TCMzone opened its doors to the healthcare community in 2000, supplying the first ever herbal granule formulas in what has become our signature individual packet dosage form in the U.S. This initial professional line was our Honso Kampo Japanese herbs. We partnered with one of the top GMP certified herbal manufacturers in Japan, manufacturing fixed, standardized Kampo granule formulas, and sponsoring continued worldwide research on their formulas to scientifically validate this medicine. TCMzone became a pioneer in the field of TCM by continuing these herbal research efforts, supplying our own formulas for U.S. clinical studies at reputable facilities throughout the country and providing these quality-backed herbs to U.S. practitioners. This type of dedication to validating the efficacy of Chinese herbal products is a standard that TCMzone continues today. As part of our efforts to provide the widest variety of highest quality herbs to U.S. practitioners, we expanded our professional herbal line to include more classical Chinese formulas and single herbs.

In 2008, we partnered with the #1 GMP certified manufacturer of granules in China to create our TCMzone brand of classical formulas and single herb granules. With our manufacturer’s commitment to quality, safety and purity we can ensure the superiority of our final products. This commitment shows from the initial stage of sourcing raw herbs for our products according to “Dao Di” principles (the finest herbs grown in specific geographic regions with attention to cultivation and processing techniques). Our processing and testing includes HPLC and TLC methods to ensure consistency of products every time.

TCMzone is now one of the leading suppliers of professional herbal products in the U.S. TCMzone granule herbal products are used among some of the leading healthcare and education institutes such as Cleveland Clinic, Pacific College of Oriental Medicine, Bastyr University, etc. We are proud to supply licensed healthcare professionals with the best in herbal medicine. TCMzone’s commitment to excellence in their products and services is only matched by their commitment to their clients.

TCMzone is proudly made up of a talented team of passionate individuals spearheaded by Founder and President, Dr. Dan Wen and Vice-president of Sales & Marketing, Ms. Jennifer Knapp. Who both are truly passionate about furthering the herbal medicine movement in the United States and providing the purist herbal medicine.

Management Team


Jipu “Dan” Wen, MD. (China)
Founder and President of TCMzone, LLC

Dr. Dan Wen has over 25 years’ experience in scientific research and product marketing in US integrative medicine space. He graduated from an integrative medicine program at a Chinese medicine school in 1988. From 1992, Dan had 3-year fellowship training in Gastroenterology Division of Mayo Clinic and 4-year research in nutrition and gastroenterology of Washington University School of Medicine St. Louis. Since 2000, Dan has been working in the industries of dietary supplement products and clinical research of botanical drugs. Dan is committed to the research that supports efficacy and validates usage of Chinese herbs and founded TCMzone with this commitment at the company core.


Jennifer Knapp
Vice-president of Sales & Marketing

Jennifer has worked with TCMzone since 2004 helping to build awareness and growth of the TCMzone professional herbal line in the U.S. With her background in International Marketing and the years working and learning alongside Dr. Dan Wen, Jennifer has helped create a community and team at TCMzone that is passionate about their clients and their products, all working for the same goal to solidify herbal medicine at its rightful place in the U.S. integrative medicine space.

TCMzone is truly unique not only because of the outstanding quality of our products and committed team, but also because of you, our loyal customers who challenge yourselves and your patients to create their path to health.

From our team to you,
Welcome to the Zone!


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