Human Synthetic Library from GenScript ProBio The GenScript ProBio Human Fab Combo Library Service provides both a Human Naive Library and a Human Synthetic Library to find human antibody candidates. Our donors are selected from a wide range of racial and ethnic backgrounds(white, black and Asian), as well as both genders and eight different blood types(A±, B±, O±, and AB±). This ensures that the library samples are diverse and have the potential to develop into a wide range of antibodies. For more information, please visit our website. https://www.genscriptprobio.com/add-human-fab-library.html