By Vitality Peps Research Team, updated August 2026.
An analysis report is only useful if you can read it, and most buyers never look past the headline number. Here is what each section actually tells you, and which parts matter when you are comparing suppliers.
A report is tied to a specific production batch. If the batch reference on the report does not match the batch on your vial, the report describes a different material. This is the first thing to check and the most commonly skipped.
Our lab results page lists records by batch so a vial can be matched to its report directly.
High performance liquid chromatography separates the contents of a sample over time. Each component appears as a peak. A dominant single peak with minimal additional peaks indicates a sample that is largely one compound.
The reported figure is derived from the area under the main peak relative to total peak area. Read the chromatogram rather than the number alone: a report with a headline figure and no visible trace is not verifiable.
HPLC answers how much of one thing is present. Mass spectrometry answers whether that thing is the molecule it is supposed to be, by matching the observed mass against the expected molecular weight for the sequence.
Both matter. A sample can be a very clean preparation of the wrong compound.
For research purposes only. Not for human consumption.