What 99% purity on a peptide COA does and does not tell you
HPLC purity tells you how much of a sample is one compound. It does not tell you which compound, or how much is in the vial.
Read article →For research use only — not for human consumption
Journal topic
How peptide purity, identity, and quantity are measured, and how to read a certificate of analysis.
HPLC purity tells you how much of a sample is one compound. It does not tell you which compound, or how much is in the vial.
Read article →A federal case over forged lab certificates shows how much weight a certificate of analysis carries. Three checks separate a real lab report from a marketing PDF.
Read article →A purity number is only as good as the chromatogram behind it. Notes on HPLC traces, batch QC and why a few percentage points change an experiment.
Read article →Mandatory research disclaimer
All materials on this site are sold as laboratory reagents for research use only. They are not drugs, foods, cosmetics, dietary supplements, or medical devices, and are not for human or veterinary use of any kind.
Senna Research makes no claims of safety or efficacy and provides no usage, dosing, or preparation guidance; we publish analytical data only.
These materials have not been evaluated or approved by the U.S. Food and Drug Administration for any use.