Editorial Review
Author: Dr. Elena Vasquez, Ph.D.(Ph.D. Biochemistry · Lead Science Editor)|Reviewed by: Scientific Compliance Reviewer
Last reviewed: April 2026
Assay context
LAL (Limulus amebocyte lysate)–based methods detect bacterial endotoxins. Some peptide COAs add EU/mg or similar reporting when a sponsor asked for a release test. A missing endotoxin result does not automatically imply unsuitability—it means the protocol must define whether the test is required. Glossary: endotoxin and LAL.
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Frequently Asked Questions
Only if the model requires it. Cell cultures and certain in vivo sensitivities are common reasons to specify endotoxin limits.