Bovine exosome-depleted FBS, for isolating exosomes from cultured cells without the complication of bovine exosomes that are present in conventional FBS. Fetal bovine serum, or FBS, is an important component of many types of cell culture media. But for researchers interested in isolating exosomes from cultured cells, standard FBS can introduce unwanted complications—bovine exosomes, which can cause significant background issues or interfere with functional studies. Which is why SBI developed Exo-FBS, our patented exosome-depleted FBS.