U.S. Source Fetal Bovine Serum (FBS) – Premium Grade, Triple-Filtered, Sterile Alkali Scientific U.S. Source Fetal Bovine Serum (FBS) is 100% sourced from USDA-licensed abattoirs and fully processed in the United States. Collected and maintained at or below 4°C (40°F) from extraction through sterile bottling, this premium FBS ensures exceptional quality and consistency for high-performance cell culture. Engineered for optimal cell growth, our U.S. Origin FBS meets rigorous industry standards for low endotoxin and hemoglobin levels. It supports a broad range of cell lines, including macrophages, hybridomas, cancer cells, stem cells, and other sensitive cultures. Key Features: ✅ Triple 0.1 µm sterile-filtered ✅ Mycoplasma-tested and virus-screened ✅ Certified low endotoxin and hemoglobin ✅ Ideal for cancer research, immunology, and hybridoma production ✅ Ships on dry ice. Store at -20°C to -10°C