U.S. Biotech Sources, LLC, fully operational in 2000, focuses on both drug discovery and biochemical reagent development and marketing. We use cutting-edge technology to develop advanced anti-cancer drugs. Our biotechnology team, in collaboration with the partners in USA and European countries, creates high quality bio-ingredients and bio-reagents for life science research. Our protein purification beads, pre-mixed culture media, and peptone ingredients are well-known and widely used by research laboratories at the University of California-Berkeley, Davis, and San Francisco campuses, and other universities and biotech industries in USA and other countries.