Lab guides
Short, plain-language explanations of how research peptides are tested, documented, and stored in the laboratory.
How Peptide Purity Is Tested: HPLC and Mass Spectrometry Explained
How research peptide purity and identity are verified with HPLC and LC-MS, what a 99% purity result means, and what each test can and can't tell you.
Read the guide →What Is a Certificate of Analysis (COA)? How to Read One
A certificate of analysis documents the test results for one production lot. Learn what each section of a peptide COA means and how to match it to your vial.
Read the guide →How to Store Lyophilized Research Peptides in the Lab
General laboratory storage practices for lyophilized (freeze-dried) research peptides: temperature, moisture, light, and handling to preserve sample integrity.
Read the guide →What "Research Use Only" Means for Peptides
What the Research Use Only (RUO) designation means, who RUO peptides are sold to, and why suppliers do not provide human-use information.
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