Quality control    Because green tea extract products have numerous and varied characteristics, evaluation of their quality should be based not only on two or three specified marker components but should include many other test factors appropriate for evaluating multi-component systems.Our researchers have isolated the biologically active compounds in green tea extract and have developed assays to assure an unvarying final product with uniform potency and purity. We make extensive use of HPLC, TLC and electron microscopy to make sure that every lot of raw material is of the species desired and is free of all pesticides, herbicides, fertilizer, heavy metals and organic contaminants.In this way, we closely monitor and control all factors in the production of green tea extract preparations, from the selection of raw tea leaves to the manufacture and packaging of final product, employing state-of-the-art quality control at every stage to assure a final product of the highest quality.The high, uniform quality of our products is made possible by a stringently controlled manufacturing process that aims to assure quality at each step in the analysis, inspection and production process, and which includes specialized technology and know-how in the selection, storage and processing of raw materials. Manufacturing operations are conducted in full compliance with strict governmental standards and employ highly advanced technologies.

Our commitment    ZJCOF’s excellent reputation in the green tea extract market can be attributed to the company's rigorous ethical orientation. Dedicated to making green tea extract and purified EGCg better known and more widely available for the well-being and health of people around the world, ZJCOF can provide consumers with high-quality green tea extract and purified EGCg products which are standardized, efficacious and proven to be safe.