The Boster Bio Rapid Fluorescent Antibody Conjugation Kit (BSA-Compatible) enables effortless multicolor immunofluorescence without the limitations of traditional conjugation methods. It allows researchers to label multiple antibodies from the same host with different fluorophores—eliminating the need to source antibodies from different species. The kit works directly with antibodies or proteins containing 0.1-0.5% BSA, with no pre-clearing or buffer exchange required. With over 8,377 immunofluorescence-validated primary antibodies ready to pair seamlessly with this kit, Boster Bio ensures high confidence and convenience for every workflow. The kit provides high antibody recovery, avoiding purification loss, and supports a broad fluorophore range (Cy3, Cy5, Cy7, 350, 488, 555, 594, 647, 750, FITC, etc.), ideal for multicolor IF/ICC and flow cytometry applications.