Where is My Hanbang Medicine Made? — Wonoe-tangjeonsil and Hanbang Quality

When taking Hanbang medicine, the most curious yet often unseen part is "where and how is this medicine made?" We transparently disclose the process of how 자임당 (jaimdang) Hanbang medicine is made.

What is a Wonoe-tangjeonsil?

A Wonoe-tangjeonsil (원외탕전실, external herbal decoction facility) is a specialized herbal medicine preparation facility separately established outside of a Hanbang clinic, operated under designation from the Ministry of Health and Welfare. Compared to the method of small-scale, direct decoction within a clinic, it can prepare Hanbang medicine with more consistent quality by meeting facility, equipment, and quality control standards. 자임당 (jaimdang)'s Hanbang medicine is made in a Wonoe-tangjeonsil in Paju, Gyeonggi Province.

5-Step Quality Control

1. Raw Ingredient Inspection — We quantify marker compounds of medicinal herbs using HPLC and verify compliance with the Korean Pharmacopoeia standards. We also self-inspect for heavy metals and residual pesticides.
2. Prescription Preparation — Ingredients are precisely weighed according to 자임당 (jaimdang)'s proprietary prescriptions, and the entire process is recorded.
3. Standard Decoction — Decoction is performed using a standard process that controls temperature, time, and pressure. This ensures consistency across batches, as it does not rely on human skill.
4. Quality Inspection — We check appearance, sensory attributes, and microorganisms for each batch.
5. Packaging & Delivery — Packaged in convenient stick pouches for portability, and the entire process is traceable via lot numbers.

Why Go to Such Lengths?

Hanbang medicine is taken daily, sometimes for several months. That's why 자임당 (jaimdang) stores tamper-proof electronic records for 10 years and enables tracking of which medicinal herbs were used, when, and how, via lot numbers. We believe that providing verifiable records is more trustworthy than simply stating "good medicinal herbs were used."

Proprietary Prescriptions + Standardized Manufacturing

The two pillars of 자임당 (jaimdang) Hanbang medicine are prescriptions developed directly by 자임당 (jaimdang) and standardized manufacturing processes. 자임당 (jaimdang) formulates the prescriptions based on the Jun-Sin-Jwa-Sa (君臣佐使, principle of monarch, minister, assistant, and envoy) theory, and the Wonoe-tangjeonsil's standard process ensures these prescriptions are realized with consistent quality.

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*Hanbang medicine is predicated on diagnosis and prescription by a Hanbang doctor. The effects and reactions of consumption may vary by individual.*