Serum substitutes are cell culture supplements used as alternatives to conventional serum in culture media. Depending on formulation, serum replacements may support defined, serum-free, or reduced-serum culture of selected cell types.
KnockOut Serum Replacement (KnockOut SR) is a more defined, FBS-free medium supplement that supports the growth of pluripotent stem cells (PSCs) cultured on fibroblast feeder cells.