How we turn a vial into a number you can trust.
Every result follows the same path. The method is fixed so comparisons across vendors and compounds stay honest.
Identity first
Before a purity number means anything, we confirm the molecule is what the label claims. Mass spectrometry compares the observed mass to the expected mass. If identity fails, nothing else matters.
Purity by HPLC
Reverse phase high performance liquid chromatography separates the main compound from related impurities. Each peak is reported as a share of total area, so a clean single peak is easy to spot and a messy synthesis is impossible to hide.
Quantity against the label
We measure how much active compound the vial actually holds and compare it to the stated milligrams. Underfilling is the most common failure in this market and the one buyers notice least, so we treat it as a headline metric.
Blind sourcing
A large share of what we test is bought through ordinary retail channels with no notice to the vendor. The vial that arrives is the vial we test, which keeps results representative of what a real customer receives.
Five grades, one combined score.
We weight purity and dose accuracy into a single score and map it to a letter. The scale is blunt on purpose, so a glance tells you whether a result is worth trusting.
How to read a certificate of analysis.
- 1Confirm identity is present. A report with no mass confirmation is not a complete certificate.
- 2Read purity as area percent, and look for impurity peaks beside the main one.
- 3Compare measured content to the label claim. A clean compound that is underfilled is still a bad value.
- 4Verify the certificate at its source. A PDF on its own proves nothing. Enter the identifier on our verification page.