Biopharma product development and clinical testing
Pel-Freez is a trusted supplier of human and animal biological materials for pharmaceutical and CRO teams worldwide. We support assay development, safety-test qualification and immune-response models from discovery through development.
Key applications we support
- Assay qualification
- Immunogenicity assays
- Diagnostic and serological assay development
- Cell culture
- Antibody-based applications
Assay qualification
Our baby rabbit complement and other biological reagents are widely used in complement-dependent cytotoxicity (CDC), neutralization assays, and other functional tests that support regulatory submissions.
Featured Products
Immunogenicity assays
Pel-Freez reagents, including normal human serum (ADHS) and antibody-depleted human serum (ADHS/ADHC), are used by leading vaccine research teams for SBA, OPKA, and other assays to evaluate immunogenicity.
Featured Products
Diagnostic and serological assay development
Build, test, and optimize new assays with well-characterized biological materials from multiple species, often used as a protein purification source or assay component.
Featured Products
Cell culture
Pel-Freez offers stocked and custom products for use as cell culture media or to supplement cell culture. Our high-quality products promote consistent cell growth and viability across biopharmaceutical applications including drug screening, transfection, and immune cell expansion.
Featured Products
Antibody-based applications
Our catalog includes blocking sera, diluents, tissues, whole organs, and antibodies to support a wide range of antibody-based applications, including ELISA, western blot, IP, IHC, and IF. From staining to protein detection, Pel-Freez delivers the biological reagents researchers need in one convenient place.
Featured Products
Custom bioprocessing services
Need help with lyophilization, tissue procurement, extractions, protein purification, or another custom project? Our team of biological manufacturing specialists is here to support you, backed by stringent QC, proven processes and specialized equipment.
Built for high-stakes science
Trusted by leading drug discovery, vaccine development, and medical research teams, our products support the rigorous demands of pre-clinical and commercial workflows.
- Bulk supply for smooth scale-up
- Lot-specific pre-screening and reservation
- ISO-compliant production, ethical sourcing, and documentation
- Technical support from scientists who understand your goals
Results start with the right materials
Start your next project with the products and support trusted by scientific teams around the world.
What researchers say about Pel-Freez
-
“Pel-Freez is our first choice as a supplier for biological matrices and complement. Their product quality and consistency of product lot to lot enables us to develop premier bacterial assays in support of the world's premier vaccine biopharmaceutical companies with confidence.”
-
“The Pel-Freez depleted serum is an excellent product for us, and we scaled up to liter volumes of the triple-depleted material.”
-
“We love using Pel-Freez NZW rabbit eyes. They are useful for developing our skillset, and the team has been very supportive as our requirements have expanded.”
-
“We centralized our department's human complement use on a single Pel-Freez lot this year and it has been working great across all of our discovery programs. Most of our assays have now switched over to the IgG/IgM depleted human complement.”
