Profile: Biological Industries supplies a full range of animal cell culture products, as well as products for molecular biology. We offer products for mycoplasma detection & treatment, disinfectants, ECM-coated disposable plasticware and products for molecular biology & gel electrophoresis. Serum is commonly used as a supplement to basal growth medium in cell culture. The most common type of serum used for cell growth is foetal bovine serum (FBS), also known as foetal calf serum (FCS). Foetal bovine serum is obtained from foetuses harvested in abattoirs from healthy dams fit for human consumption. Our cell proliferation kit (XTT) was developed to assay cell proliferation in reaction to different growth factors, cytokines and nutrient components. In addition, it is suitable for assaying cytotoxicity of materials such as TNF or other growth inhibitors.