BSA is applied as a blocking agent in immunoassays like ELISA and Western blotting as a stabilizer in enzyme solutions and cell culture media and as a carrier protein for small molecules in biochemical experiments.

It maintains oncotic pressure transports fatty acids hormones bilirubin and ions in serum acts as an antioxidant by binding free radicals and toxins and reduces non-specific binding in assays to improve signal-to-noise ratios.

Bovine Serum Albumin (BSA) is a globular monomeric protein consisting of 583 amino acids with 17 disulfide bonds derived from bovine blood plasma and lacking carbohydrates.