While most herbs are sourced from the bulk herb market, the raw herbs that become Treasure of the East herbal extracts are sourced directly from over 300 herb farms across 22 Chinese provinces, including 66 herb farms that Tianjiang owns or co-owns. These incredibly close and long-standing relationships help us ensure quality from the seed through the finished product.
Because we source directly from the farms, we are able to produce many herbal extracts from a single annual batch, immediately after harvest, for the best possible freshness and efficacy. We avoid many issues of degradation and contaminant growth (related to prolonged or improper storage) because our supply chains are some of the shortest in the world of Chinese herbs.
Geo-Authentic and Sustainable
Directly from the Farms. Authentic herbs grown from high quality seeds are sourced directly through long-standing relationships with over 300 farms across 22 provinces. Additionally, Tianjiang owns or co-owns 66 farms to ensure quality from seedling through finished product.
Geo-Authentic. Approximately 95% of our raw herbs are geo-authentic, meaning they come from their "Dao Di" or their regions of traditional origins. While we would prefer to source all herbs from their Dao Di regions, herbs from some Dao Di regions are not able to meet our stringent standards for sustainability, water and soil quality, heavy-metal content, or concentrations of active chemical constituents.
Four of Tianjiang's 66 herb farms in Szechuan, Shandong, Yunnan, and Ningxia
Sustainable. Since 2016, Tianjiang has strictly adhered to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). That means you will never find endangered species like tiger bone or rhino horn from us. There are five species of protected plants in our catalog that Tianjiang procures from sustainably farmed sources: Tian Ma, Bai Ji, Yun Mu Xiang, Sha Shen (Bei), and Rou Cong Rong. Because Tianjiang purchases directly from the farmers, not from the bulk herb market, we are able to obtain certification from CITES confirming that the herbs come from sustainable sources.
The Gold Standard in Botanical Identification
Like all herb companies, Tianjiang employs trained herbalists using organolepic techniques to authenticate herbs. However, Tianjiang also developed hundreds of thin-layer chromatography (TLC) botanical fingerprint identification standards in order to verify authenticity with absolute certainty.
Chromatography-based fingerprint identification is the gold standard for authentication of botanical products. It is widely used to verify the authenticity of frequently counterfeited foods, including herbs, mushrooms, and honey.
Since Tianjiang developed TLC identification standards for its own use, the same standards have been adopted industry-wide by the China Food and Drug Administration. This means that all other suppliers of Chinese herbs must strive to meet our supplier's standards for botanical authenticity.
TLC chemical signatures for Bu Gu Zhi full-spectrum extracts (1-8), Bu Gu Zhi raw herb samples (9-10), isolated Psoralen (11), and isolated Isopsoralen (12).