All herbs are manufacturer-tested using Thin Layer Chromatography (TLC) and High Performance Liquid Chromatography (HPLC) to confirm identification, ensure potency and to test for active constituents when necessary.

Kamwo also employs Eurofins Central Analytical Laboratories, an independent US testing facility in New Orleans, to test our herbs for microbes, heavy metals (such as Arsenic, Lead, Mercury, and Cadmium), as well as for over 60 pesticide residues, including DDT and BHC. Eurofins is a worldwide leader in the bio-analytical market, with 40 state-of-the-art laboratories across the globe. They employ over 10,000 reliable analytical methods to ensure herb, food and pharmaceutical safety. Through voluntary testing and sourcing sulfur-free medicinals whenever possible, we are helping to raise the industry standard in ensuring that patients receive only the finest quality herbs.