Frequently asked questions

Fetal Bovine Serum

• What is fetal bovine serum (FBS)?

  Fetal Bovine Serum (FBS) is a natural biological product derived from the blood of bovine fetuses collected through a controlled process during cattle slaughter for the meat industry.

  FBS contains a rich combination of growth factors, hormones, and proteins that support the growth and maintenance of cells in vitro. Because of these properties, FBS is the most widely used serum supplement in cell culture applications across biotechnology, pharmaceutical research, and academic laboratories.

• What is fetal bovine serum used for?

  Fetal bovine serum is primarily used as a supplement in cell culture media to support the growth, viability, and maintenance of cells in laboratory environments.

  It plays an essential role in a wide range of scientific applications including:

  • Biopharmaceutical research and development
  • Vaccine development and production
  • Stem cell research
  • Cell therapy research
  • Academic and biomedical research

  Its unique composition of proteins, growth factors, and nutrients makes it particularly effective in supporting a wide variety of mammalian cell lines.

• Why do cell cultures need serum?

  Maintaining healthy cells in vitro requires an environment that provides nutrients, growth signals, and protection against stress.

  Serum supplements such as FBS supply essential components including growth factors, attachment factors, hormones, transport proteins, and trace nutrients that support cellular growth and survival.

  While different cell types have specific requirements, FBS is widely used because it consistently supports cell proliferation and viability across many cell culture systems.

Product Quality

• How do you ensure lot-to-lot consistency?

  Peak Serum applies strict quality control procedures throughout the sourcing, processing, and testing stages of serum production.

  Each production lot undergoes standardized filtration, testing, and performance validation to ensure consistent biochemical composition and reliable cell culture performance.

  For customers requiring long-term experimental consistency, Peak Serum also supports lot reservation and bulk lot purchasing, allowing laboratories to maintain consistency across extended research projects.

• Are your sera tested for mycoplasma and endotoxins?

  Yes. All Peak Serum sera are tested using validated quality control methods to detect mycoplasma contamination and endotoxin levels.

  Testing is performed as part of our standard quality assurance procedures to ensure that each lot meets strict quality standards for cell culture applications.

  Detailed testing results are documented and available through the Certificate of Analysis (COA) provided with every product lot.

• Do you provide full traceability and certificates of analysis (COA)?

  Yes. Each lot of Peak serum is fully traceable throughout the supply chain, from raw material collection to final processing and distribution.

  Customers receive a Certificate of Analysis (COA) that includes key quality and traceability information such as:

  • Country of origin and traceability documentation
  • Quality control testing results
  • Filtration and processing details
  • Sterility and endotoxin test results

  This documentation supports laboratories operating under strict research and regulatory requirements.

Compliance & Standards

• What certifications and quality standards do you follow?

  Peak Serum products are manufactured and processed under rigorous quality management procedures aligned with internationally recognized standards for biological materials.

  Our sourcing and processing practices follow established animal health guidelines, traceability requirements, and quality assurance protocols to ensure product safety, reliability, and compliance with industry expectations.

  Supporting documentation is available upon request.

• Is your serum suitable for regulated or clinical research environments?

  Yes. Peak serum is widely used in biotechnology, pharmaceutical research, vaccine development, and academic laboratories.

  Our controlled sourcing, validated testing procedures, and comprehensive traceability documentation support laboratories operating within regulated research environments. For projects requiring specific documentation or regulatory support, our technical team can assist with the necessary information.

• What does “USDA-approved sourcing” mean?

  “USDA-approved sourcing” indicates that the serum originates from countries approved by the United States Department of Agriculture (USDA) to export ruminant serum products to the United States.

  These approvals ensure that the serum originates from regions that meet strict animal health and veterinary inspection standards, helping guarantee the safety and regulatory compliance of the product.

Ordering & Logistics

• Do you offer long-term supply agreements or bulk pricing?

  Yes. Peak Serum works closely with labs, research institutions, biotechnology companies, and pharmaceutical manufacturers to support long-term supply planning.

  Customers can reserve specific serum lots, establish supply agreements, or benefit from bulk purchasing programs designed to ensure consistent supply and pricing for ongoing research and production needs.

• How do you guarantee cold-chain integrity during shipping?

  All Peak Serum products are shipped using validated cold-chain logistics systems designed to maintain the correct temperature throughout transit.

  Products are packed using temperature-controlled packaging and shipped through specialized logistics partners to ensure that serum arrives frozen and ready for laboratory storage.
  Strict handling procedures are followed for both domestic and international shipments to preserve product integrity.

• Can I request a sample before placing a bulk order?

  Yes. Peak Serum understands that laboratories often need to evaluate serum performance with their specific cell lines before committing to larger purchases.

  Sample requests can be arranged to allow researchers to validate compatibility and performance within their experimental workflows prior to placing a full order.

  Please contact our team to request a sample or discuss your project requirements.