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Quality is a crucial element for our customers’ purchasement , who trust that we provide safe and authentic herbal products they can confidently use in their practice.

Quality matters to patients, who count on their TCM practitioners to provide effective herbal remedies that enhance their health and well-being.

Quality matters to our team, who take great pride in the products and services that Drotrong provides, and we committed to advancing the practice of Traditional Chinese Medicine globally.

For decades, Drotrong has been associated with the finest herbal and herb extract. We feel an obligation to our history, our traditions and our reputation as a leader in the TCM industry to ensure that our products meet and exceed the highest quality standards. By offering the safest and most effective herbal products available, practitioners and patients can enjoy our products in complete confidence.

Learn more about our rigorous quality management system below.

Starting With Responsible Sourcing

All of our raw materials are obtained from our own planting bases and factories. We refuse to endanger at-risk species, produce low-quality or contaminated herbs, or work with vendors who have a negative environmental impact. Drotrong, our headquarter in Sichuan, China. Our executives visits factories and planting bases frequently to verify that they are in compliance with product standards. We ensure that the highest-quality products reaching our customers.

Identifying and Authenticated Before Processing

Drotrong does not accept any raw materials that do not meet our uncompromising standards. Before any herb is processed, it undergoes a thorough verification process to determine its species, origin and quality. Drotrong uses the following methods of authentication:

Visual inspection

Microscopic analysis

Physical/chemical identification

Chemical fingerprinting

Our methodology blends ancient knowledge with modern technology. Our experts use traditional inspection methods to analyze an herb’s appearance, while our technicians employ state-of-the-art science and technology to make analytical assessments of the herb’s quality. This dual-approach aims to prevent the use of inauthentic or unsafe herbs.

Quality Control Tests Are Routinely Executed

We take full responsibility for ensuring our herbs are free from harmful contaminants. All raw materials are subjected to a series of quality control tests to establish their safety and purity:

Sulfur dioxide — the use of sulfur fumigation by farmers can jeopardize the quality and safety of herbal products

Pesticide residuals — chemical pesticides and their by-products can be harmful to human health

Aflatoxin — the Aspergillus flavus fungus produces four kinds of aflatoxins that are toxic and possibly carcinogenic

Heavy metals — Drotrong tests for the five heavy metals that pose the most serious risk to human health: lead, copper, cadmium, arsenic and mercury

Aristolochic acid — aristolochic acid is considered a carcinogen and has been linked to incidents of renal fibrosis and urinary tract cancer

Drotrong discards any herbs that contain unacceptable levels of these substances.

A Certificate of Analysis Is Produced With Each herbs and herb extract

We provide a Certificate of Analysis (COA) with every herbs and herb extract we produce. The COA affirms the results of these quality tests and attests to the potency and purity of the product. Only batches that fulfill the ‘Golden Standard’ are packaged and distributed. The Golden Standard is a strict collection of safety standards from the United States, the European Union, Singapore and Japan.

Manufacturing Facilities Comply With Rigorous International Standards

We are certified by one of the world’s most stringent and and widely recognized products testing standards, SGS. SGS is the world's leading inspection, certification, testing and certification company. SGS is the world's recognized benchmark for quality and integrity. It regulates all aspects of a pharmaceutical manufacturer’s production facilities, equipment, personnel and procedures to ensure that products produced in certified facilities meet exceedingly high safety, quality and verification standards.

Our facilities also comply with the following International Organization for Standardization (ISO) protocols:

ISO 9001

ISO 17025

ISO 22000 HACCP

We actively maintain our certifications and regularly submit to independent inspections to verify that our operations comply with the above standards.

Striving For Consistent Innovation and Development

Our manufacturing process has been refined over more than decades. Though we are proud of our connections to the past, we are never afraid to evolve for the future. We continually evaluate new technology as it emerges and introduce new tools into our manufacturing operations when we believe they will deliver measurable benefits to our customers. We also carefully track the latest developments in methodology that help us use our technology to the fullest advantage. Continuously learning helps us guarantee that we deliver products our customers can trust.

Ensuring Batch-to-Batch Consistency for Five Generations

Quality means more than good health. It means consistency, transparency and reliability. Always mindful of the profound impact our products can have on people’s lives, we make manufacturing decisions with the utmost care and integrity. Our commitment to quality in all aspects of our business has resulted in safe, high-quality herbs and herb extract that TCM practitioners and their patients have trusted since 1892. Contact our team to learn more（https://drotrong.com/）.