In the research peptide market, quality varies enormously between suppliers. The only reliable way to verify the real purity of a batch is to check its Certificate of Analysis (COA).
What is a COA?
A Certificate of Analysis is a report produced by an independent laboratory certifying the actual composition of a batch using validated analytical methods: high-performance liquid chromatography (HPLC/UPLC), mass spectrometry (MS), or MALDI-MS depending on the molecule. At NOVALYXLABS, every batch is tested by the Brown Biology Institute.
Information to check on a COA
- Batch number — must exactly match the vial received
- Measured purity — ideally above 99%
- Analytical method used
- Analysis date
- Name of the independent laboratory
Why some suppliers don't provide one
Independent lab testing has a cost, and some suppliers skip it or provide generic COAs not linked to the actual batch shipped. That's a major warning sign.
How NOVALYXLABS operates
Every reference in our catalog is systematically tested before shipping, with the corresponding COA available directly on the product page.
Note: all NOVALYXLABS products are strictly intended for scientific research in laboratory settings, not for human or animal consumption.