Enhance growth of cells with U.S. sourced Cytiva HyClone Embryonic Stem (ES) Cell Screened Fetal Bovine Serum (FBS), filtered through serial 40 nm pore-size rated filters and tested for endotoxin, hemoglobin, and extensive biochemical profile assays.

• Supports the growth of undifferentiated murine embryonic stem cells
• Tested according to a protocol adapted from Gene Targeting, A.L. Joyner, 1995
• Sourced in the USA with complete traceability back to the original source
• Low in antibodies and high in growth factors
• Virus panel testing according to 9 CFR 113.53
• 40 nm filtration

HyClone ES (Murine) Screened FBS minimizes the need for prescreening serum, saving both time and money, while providing the assurance that the serum used has been screened by experienced ES cell culturists. The screening includes plating efficiency, colony morphology, and toxicity tests. ES screened FBS is selected from our highest quality Defined FBS lots.

Data shows that 40 nm filtration will remove as many as eight logs of viral challenge. Studies demonstrate that this filtration regimen has no adverse effect on cell growth. Before dispensing, each lot of serum is pooled using true pool technology to ensure uniformity and consistency between bottles. Defined FBS has over 50 components analyzed on the finished product and the results are included in the certificate of analysis and the biochemical assay list.