New Analysis Confirms: Animal-Free Antibodies Can Be Implemented Today
For Immediate Release:
April 14, 2026
Contact:
Tasgola Bruner 202-483-7382
A new analysis, “Increasing the use of sequence-defined antibodies: Practical solutions for common targets” by PETA Science Consortium International e.V., published in the scientific journal Alternatives to Animal Experimentation (ALTEX), shows that many of the most commonly used animal-derived antibodies in scientific research already have readily available non‑animal replacements.
“Scientists now have clear, practical opportunities to transition to newer antibody technologies that improve scientific consistency, reduce reliance on animals, and align with public values,” says Katherine Groff, MS, advisor to PETA Science Consortium International and author of the analysis. “The science is ready—animal-free antibodies can be implemented today, and the PETA Science Consortium’s analysis shows how.”
Antibodies are essential research tools to detect viruses, bacteria, or other molecules in research. Despite major technological advances, many widely used antibodies are still produced using animals rather than state-of-the-art methods. This reliance on animals raises ethical concerns and can also undermine scientific reliability, as antibodies produced in animals can vary from batch to batch due to biological differences between individual animals.
The new analysis demonstrates that many of the most frequently cited antibodies now have sequence-defined replacements that are either entirely animal-free or eliminate animal use during production, while offering greater consistency and reliability. These state-of-the-art options are already commercially available and can be adopted immediately by laboratories.
Notably, five of the top 100 research antibodies are still produced using the ascites method—a technique that involves inducing tumors in mice and repeatedly collecting antibody-rich fluid. This method has long been discouraged due to significant animal suffering, including tumor growth, fluid buildup, and repeated invasive procedures. Sequence-defined replacements for all five of these highly used antibodies are available and ready for use. PETA Science Consortium International e.V. advances reliable and relevant non-animal toxicology testing approaches that protect human health and the environment. For more information, please visit ThePSCI.eu
