Research-grade peptides · Every batch independently tested · Cold-chain shipping on every order
Research-grade peptides · Every batch independently tested · Cold-chain shipping on every order
Here is exactly how we verify what is in each vial, and how you can check it yourself.
| Test | Method | What it confirms |
|---|---|---|
| Purity | Gradient reverse-phase high-performance liquid chromatography (RP-HPLC) | The percentage of the sample that is the target peptide, versus synthesis-related impurities |
| Identity | Electrospray ionization mass spectrometry (ESI-MS) | The measured molecular mass matches the expected mass of the peptide |
| Content | Quantitative analysis, where offered by the lab | The amount of peptide in the vial matches the labelled strength |
| Endotoxin | Limulus amebocyte lysate (LAL) assay, where tested | The bacterial endotoxin level, reported in EU/mg on the certificate for that lot |
A lot is released for sale only when its independent report confirms the correct identity and meets our purity specification of 98% or higher. Lots that fail are not sold.
In-house certificates are only as trustworthy as the company that writes them. Our reports come directly from an independent analytical laboratory with no stake in the result. We publish the lab’s original PDF unaltered, and each report carries the lab’s own verification code.
This website offers research compounds intended solely for laboratory and in-vitro research by qualified professionals. They are not drugs, foods, supplements or cosmetics, and are not for human or veterinary use.
By entering you confirm that you are at least 21 years old and that you will use any purchased material for lawful research purposes only.
