Best Lab LLC, located in the City of Industry, Southern California, is a local startup subcontracting laboratory led by Dr. Elisa Gutierrez and managed by Dr. Willow Liu. Best Lab has been strictly set up to comply with ISO 17025. Our laboratory is fully equipped with new and advanced instruments (GC-MS, HPLC, TLC, FTIR, UV-VIS) allowing our experienced chemists and scientists to operate effectively. Hence, providing reliable service for the nutraceutical and dietary supplement industry. The most popular lab services are microbial testing (Yeast, E.Coli, Staph and TPC), and dietary & herbal supplement ingredient identification. We, however, also provide vitamins, fatty acids quantification, pesticides, heavy metal analysis, and many more.