Bovine serum is the blood fraction remaining after the natural coagulation of blood, followed by centrifugation to remove any remaining red blood cells. Fetal bovine serum (FBS) containing an especially high amount of growth factors is the most widely used serum. The production of bovine serum at PAN-Biotech is tightly controlled, from the collection of serum at the slaughterhouse and throughout the whole production cycle which is performed without exception in our own production facilities in Aidenbach, Germany. (Please see also our Quality Commitment)