Widely used in biological research and biopharmaceutical manufacturing, this protein solution serves as a stabilizer for enzymes, antibodies, and other proteins in assays and storage buffers. It is commonly added to immunoassays such as ELISA and Western blotting to block nonspecific binding sites on membranes or microplates, reducing background noise and improving signal accuracy. In cell culture applications, it acts as a carrier for hormones, vitamins, and lipids, supporting cell growth and viability. It is also used in molecular biology to prevent adhesion of biomolecules to tube surfaces and to optimize PCR and nucleic acid amplification reactions. Due to its low immunogenicity and high solubility, it is frequently employed as a standard in protein quantification methods like the Bradford or BCA assay.