Quality Control
 
Internationally Certified GMP Factories
Part of the quality assurance Plum Flower® brings to you is in the choosing of exceptional manufacturers to create our products. All of our manufacturers comply with the new stringent Chinese Good Manufacturing Practices (GMP), and have also been certified by the Australian Therapeutic Goods Administration (TGA). GMP certification means that the site and methods employed in the production of our herbs has been subject to a thorough quality control investigation and is certified to be in compliance. Guidelines vary from country to country. The Australian standards are some of the highest in the world, as dietary and herbal supplements there are subject to the same guidelines as pharmaceuticals. The certification process covers everything from the building and grounds, to the equipment, personnel and training, to sanitation and hygiene, to air and water purification, to production and documentation. These standards for manufacturing are the guidelines upon which our manufacturers base each decision, and allow us to have the confidence to say that they are some of the best herbal product manufacturers not only in China, but also in the world today.
 
Laboratory Testing
Each of the internationally GMP certified factories where Plum Flower® teapills, tablets, extracts and liquid products are produced has an in-house lab where extensive quality control analysis is performed. All raw materials are identified and basic tests are performed before use. Chemical analyses including TLC (thin layer chromatography) and HPLC (high performance liquid chromatography) are also used to confirm identification, ensure potency and to test for active constituents when necessary.
 
Tests for moisture content, dissolution, heavy metals (lead, arsenic, mercury, cadmium) and microbial content are performed on every batch of finished product. Plum Flower® restrictions on heavy metal and microbial contaminants are stringent and in line with international requirements. Following extensive in-house testing, heavy metal testing is conducted again at third party labs to confirm results and to ensure that our standards of purity and safety are met. More sophisticated analyses, such as Aristolochic Acid testing and Chloramphenicol testing, are conducted at outside certified labs.
 
When the products arrive in the U.S. they are subject to an additional review by the FDA ensuring that the products you receive meet every safety standard.
 
Certificate of Analysis
Certificates of Analysis are provided to us by independent laboratories for every lot of herbs, teapills, tablets, liquid extracts and concentrated extract powders we distribute. The image below is an actual Certificate of Analysis from a batch of our Plum Flower® Brand Gui Pi Teapills /Gui Pi Wan.
 
Click certificate to download the Chinese or English version.
 

 
Mayway's Heavy Metal Testing Limits