Human Serum Off-the-Clot, Type AB – Sterile Filtered & Fully Documented

At SeamlessBio, we supply Human Serum off-the-clot, Type AB, male, sterile filtered, produced under cGMP & ISO 9001/13485 standards.
Available from donors in Germany, EU countries, or the USA, depending on customer requirements.

This product is designed for human cell culture, immunology, diagnostics, and regenerative medicine, where animal-free, documented, and reproducible conditions are essential.

From Collection to the Final Product

Our Human Serum is sourced from healthy, certified donors in Europe, collected exclusively at approved donation institutions.

Each donation is thoroughly tested and confirmed negative for:

  • Anti-HIV 1/2
  • HBsAg
  • Anti-HCV
  • HIV-1 Ag and/or HIV-1 NAT
  • Syphilis

Every batch is further analyzed for:

  • Osmolarity
  • pH
  • Protein & glucose concentration
  • Cell growth performance
  • Sterility

This ensures traceability, reproducibility, and safety for research and production applications.

Origin & Ethical Sourcing

SeamlessBio offers flexibility in sourcing – depending on customer needs, Human Serum can originate from:

  • 🇩🇪 Germany
  • 🇪🇺 Other EU countries
  • 🇺🇸 United States

All collections are performed under ethical, regulated conditions with full donor consent.
Compliance with EU and US regulatory frameworks ensures that the serum is safe, ethically sourced, and suitable for research and diagnostics.

Why Human Serum for Cell Culture?

Unlike Fetal Bovine Serum (FBS), Human Serum is species-specific – making it more suitable for the cultivation of human cells.
By using Human Serum, in vitro conditions more closely reproduce natural in vivo environments.

Applications include:

  • Cell culture of human primary cells
  • Research in cell & immunotherapy
  • Tissue engineering & regenerative medicine
  • Diagnostic assay development
  • Workflows where animal-derived components must be avoided

Off-the-Clot Human Serum – SeamlessBio Quality

Off-the-clot Human Serum is produced from whole blood collected without anticoagulants. The blood is allowed to clot at room temperature, centrifuged, and filtered to remove the clot.

At SeamlessBio, we provide:

  • Single donor units as well as pooled off-the-clot serum
  • Filtration through depth and membrane filters for sterility
  • Consistent documentation (COA, COO, MSDS)

This process guarantees a clear, reproducible serum suitable for sensitive applications.

Human Serum Type AB – Ideal for Immunology & Diagnostics

Human Serum from donors with blood group AB is free from anti-A and anti-B antibodies, which could otherwise interfere with cell cultures.
This makes Type AB Human Serum particularly valuable for:

  • Immunological assays
  • Hematopoietic studies
  • Sensitive diagnostic workflows

Product Handling & Customer Information

 

  • Bottled under sterile conditions and frozen as a clear solution
  • A slight turbidity may appear after thawing – this does not affect quality
  • Typical usage concentration: 5–20%
  • Adaptation tip: Cells grown in FBS should be gradually transitioned to Human Serum (e.g., first 4–6 days with a 50/50 FBS-Human Serum mix, then fully switched)

 

Packaging & Supply

 

  • Available in 50 mL, 100 mL, 500 mL, and bulk volumes
  • Custom packaging available upon request
  • Delivered globally with cold chain logistics

 

Request Your Human Serum Off-the-Clot Today

Looking for Human Serum off-the-clot, Type AB, sterile filtered for your research, diagnostics, or immunotherapy project?

📩 Contact us for a quote or sample : 

Phone: +49 851 37932226‬