Fetal Bovine Serum (FBS) – USDA Origin Approved, Triple-Filtered, Cell Culture Grade Alkali Scientific USDA-Approved Fetal Bovine Serum (FBS) is sourced from countries that meet strict USDA import regulations and safety protocols. Collected aseptically from fetal bovine blood, this high-quality serum is centrifuged to remove cellular components and coagulation factors, then triple 0.1 µm filtered for sterility and consistency. Our USDA-Origin FBS is rich in growth factors, proteins, and adhesion molecules that promote in vitro cell proliferation, maintenance, and attachment. Every lot is thoroughly tested for endotoxin levels, mycoplasma, BVD virus, hemoglobin, and total protein to ensure exceptional performance across a wide range of cell lines. Key Features: ✅ Triple 0.1 µm sterile-filtered ✅ USDA Origin Approved – compliant with U.S. import standards ✅ Mycoplasma-tested, virus-screened (including BVD), low endotoxin ✅ Enhances growth and adhesion of eukaryotic cells ✅ Ships on dry ice. Store at -20°C to -10°C