Lab-ready biologicals
Hear from our community
“For over a decade Pel-Freez Biologicals has been a consistent supplier of high-quality reagents and an excellent partner."
“We have ordered from Pel-Freez for over a decade and they are always willing to go above and beyond in making sure we can obtain the right product for our specific research needs.”
“Human complement is an essential reagent for much of our research and product testing. [Pel-Freez] has saved us a considerable amount of time and expense allowing us to focus on experiments instead of preparing reagents.”
“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 worlds’ premier vaccine biopharmaceutical companies with confidence.”
Lab-ready biological reagents
Our human- and animal-derived blood products, complement, sera, and tissues are known worldwide for quality and consistency.
Not sure which product works for you? Let us help.
Discover your next favorite reagent
Our products meet uncompromising quality and ethical standards.
Need a custom product? We can help.
See our extensive list of custom sourcing and bioprocessing capabilities to learn how we can help with your next discovery.
Why Pel-Freez? Because we strive to do what’s right
Our goal is simple: provide consistent, quality products and services you need to move science forward.
Updates from our Blog
Popular resources
Why Pel-Freez? Because we strive to do what’s right
Our goal is simple: provide consistent, quality products and services you need to move science forward.
Updates from our Blog
Popular resources
Publications
Browse a selection of the >5000 peer-reviewed publications using Pel-Freez products.
Development and validation of a standardized human complement serum bactericidal activity assay to measure functional antibody responses to Neisseria gonorrhoeae
Matthias KA, et al. (2025). Vaccine. doi: 10.1016/j.vaccine.2024.126508.
Product: IgG/IgM-depleted human complement
Sequential recruitment of F-BAR proteins controls cytoskeletal crosstalk at the yeast bud neck
Magliozzi JO, et al. (2025). Current Biology. doi: 10.1016/j.cub.2024.12.011
Product: Rabbit muscle acetone powder
High-Throughput Luminescence-Based Serum Bactericidal Assay Optimization and Characterization to Assess Human Sera Functionality Against Multiple Shigella flexneri Serotypes
Caradonna V, et al. (2024). Int. J. Mol. Sci. doi: 10.3390/ijms252011123
Product: Baby rabbit complement
