The late Dr. Joel Penner, founder of the American Dragon website, was a devoted teacher and practitioner who took great satisfaction in helping others heal. We are deeply grateful for his many contributions and hope that the resources on his website continue to benefit the community. The American Dragon website was his passion, and over the years it has grown into a valuable reference for both patients and professionals. If you would like to support the ongoing hosting and maintenance of the website, please visit americandragon.com
WELCOME
J.R. Laboratories / JR13 TCM
SINCE 1987
Providing TCM clinicians with extraordinary, one of a kind, herbal tea concentrates.
Elevate Your TCM Practice with Maximum Potency
In TCM, even small improvements in herbal potency can transform patient outcomes. Not all extract brands are created equal—popularity does not necessarily equal efficacy. Our Vital Signs criteria guide practitioners to select products based on actual therapeutic strength, not marketing appeal.
The Problem with Dried Tea Products
The dehydration of mass-produced powders and pills causes ongoing oxidative damage that diminishes efficacy. Our liquid concentrates skip drying entirely so potency is maintained, flavor is bold, and therapeutic power is fully realized. Stabilized with 20% alcohol, every dose delivers consistent effectiveness with lack of potency fluctuation, long after a dried tea would have gone stale.
Potent, Traditional, Customizable
Over 600 classical formulas and single herbs, and unlimited custom blends. It’s TCM with strong intent, traditionally cooked, optimally preserved, and highly potent. The striking flavor reflects true efficacy.
Quality Without Compromise
Handcrafted, deliberate, and uncompromising, our production honors the highest standards. Ancient workers laboring in the fields all day long would carry dried tea pills, while the high potency teas, without further processing, were enjoyed by the elite. Our concentrates bring raw herb tea quality to your practice.
Traditional formulas or your custom blends—fully potent, clinically effective, and ready to elevate your patients’ care.
ABOUT J.R. Laboratories
Over 39 Years of Continuous Innovation
Since 1987, our work has been guided by a multidisciplinary team of clinicians with backgrounds in science and engineering. Early on, we recognized a critical gap: when access to a raw herb pharmacy was limited, the available alternatives often failed to meet clinical expectations. “As good as it gets” was simply not sufficient.
Driven by a commitment to improvement, we challenged conventional extraction and concentration methods. Rather than prioritizing mass production or marketing, we focused on developing higher-integrity herbal concentrates—formulations that more closely reflect the therapeutic capability of traditional raw herb prescriptions.
Operating as a private laboratory and pharmacy, our approach has always emphasized precision, small-batch production, and continuous refinement—advancing one step at a time. Our process remains dynamic: improvements are ongoing, details are never overlooked, and industrial shortcuts are deliberately avoided.
We measure success not by production volume, but by clinical outcomes. After more than three decades, our commitment remains unchanged: to advance the quality, potency, and effectiveness of herbal medicine in service of better patient care.
TRADITIONAL FORMULAS OR YOUR OWN CUSTOM
FORMULAS – MADE HIGHLY POTENT
What Defines a Truly Different Herbal Tea Concentrate?
Producing a clinically superior herbal tea concentrate requires a fundamentally different approach to extraction and preservation. Central to this process is the deliberate avoidance of drying. By maintaining the extract in its liquid state, the integrity of bioactive compounds is preserved, allowing the preparation to retain maximum potency over time.
Conventional mass-production methods rely on dehydration to create powders and granules suitable for large-scale distribution. However, this process significantly increases exposure to oxygen, initiating oxidative degradation and the progressive loss of active constituents—one of the most critical and often overlooked quality limitations in modern herbal medicine.
In contrast, our method preserves the extract at peak concentration. At this stage, it is stabilized with 20% alcohol to protect against degradation and ensure consistent potency throughout its shelf life. The difference in processing is reflected directly in the finished product, with sensory evaluation—particularly taste—providing a clear indication of retained therapeutic strength.
This process is performed in small batches, with careful attention to detail at every stage. Although time-intensive, it ensures a level of quality, stability, and efficacy that cannot be achieved through industrialized methods.
*CBD OIL
Organic . 1000mg Each Ounce . Full Spectrum . Organic MCT carrier
For just the cost of the CBD oil, we can add it to a TCM classic or custom formula.