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Quality-Assurance & Control

a-sueblue.original.pngScientific testing and data serve to confirm that a product meets safety and other quality parameters. However, we believe that the essence of Chinese medicine, its power, is not something that is easily quantified. The manufacturing of a traditional Chinese medicine is not just a scientific process, but also an art resulting from an understanding of the nature of herbs and an experienced hand. While our products are made in carefully controlled GMP environments, much of the character and quality of the final product is based on a set of human choices: the quality of starting materials, the large and small decisions made during processing, and a commitment to quality in every aspect. The results of these choices are not always quantifiable, but the care and attention to detail in their creation can be experienced in the appearance, smell, taste, and effects of any of our products.

Good Manufacturing Practices (GMP)
Good Manufacturing Practices (GMP) helps ensure the quality and safety of products, traceability of ingredients, and transparency of the manufacturing process among other things. GMP certification means that the site and methods employed in production have been subject to a thorough quality control investigation by a government agency or qualified third-party organization and are certified to be in compliance.
Quality Testing
Clean room microbial testingAt each of the GMP certified facilities of our manufacturing partners is an in-house lab where extensive quality control analysis is performed. Testing ranges from basic organoleptic and microscopy to higher-level analytical techniques including High Performance Thin Layer Chromatography (HP-TLC) and High Performance Liquid Chromatography (HPLC) to confirm identification, ensure potency and to test for marker chemicals when required by the Chinese pharmacopoeia.

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In–House Quality Control
In line with FDA Dietary Supplement GMPs, each lot received into our warehouse is first quarantined. Then each product is sampled, the Certificate of Analysis verified, and the sample is compared with past lots for consistency. Herbs are inspected using sensory protocols, and confirmed against standard references, if necessary, to verify quality and species.
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Shelf Life and “Best Before Date”
Shelf life is the length of time that products are given before they are considered unsuitable for sale, use, or consumption. Mayway generally uses a best before date for its prepared products. We do not have “Best Before” dates on our herbs and herb powders.
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Pharmacopoeia Guidelines
Testing powderOur manufacturers adhere to official Chinese Pharmacopoeia guidelines or other government sanctioned references in the making of our products. These references contain individual monographs that have been reviewed and chosen from different references across China by a scientific committee.
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Testing Standards and Limits
Mayway's Heavy metals testing limits lower than U.S. Pharmacopoeia limitsEach Mayway product has an individual product specification that outlines basic product requirements including ingredients, processing method, and quality control information. Quality control information includes applicable testing requirements and limit standards for that product.
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Product and Ingredient Traceability
In addition to batch numbers assigned by the manufacturer, we assign tracking numbers to each product. This allows any product to be traced back to the starting materials. The ingredients in any prescription made in the Mayway Herbal Dispensary can be traced back to its individual batch information.