Fetal Bovine Serum (FBS) Charcoal Stripped is produced by filtering FBS through an activated carbon-absorbent filter, resulting in reduced concentrations of steroid hormones, such as estradiol, progesterone, cortisol, testosterone, T3, and T4, without unspecific loss of other serum components. FBS Charcoal Stripped is useful for studying processes influenced by steroid hormones (estrogen stimulation, obesity process) and other research topics that benefit from reduced hormone levels, such as certain types of viral infections. Fetal bovine serum (FBS) or fetal calf serum (FCS) is widely used in eukaryotic cell culture, typically as a supplement for growth media. Fetal bovine serum contains nutritional and embryonic growth promoting factors that are essential for a successful cell culture. Further, fetal bovine serum contains various small molecules, such as, e.g., amino acids, lipids, sugars, and hormones. Fetal bovine serum (FBS) is the blood component obtained after coagulation and removal of cellular components. Its unique and comprehensive mix makes FBS one of the most important supplements for supporting cell growth and proliferation for in vitro cell culture. Our fetal bovine serum for cell culture supports most cell lines and undergoes strict quality controls. This product is collected in South America.