What a lab report does not tell you
Written and maintained by the AVERON Research Desk · Last reviewed September 2026
We publish an independent lab report for every batch we sell, and we think every seller should. But we also think it would be dishonest to let a lab report imply more than it proves. This page sets out the limits, including the limits of our own reports.
What a standard report does prove
A standard peptide test answers three questions. Is the sample the compound it claims to be? How much of it is in the vial? How pure is it, compared with related impurities? Those are important questions, and in this market many products fail them. A report that answers them well is a real piece of evidence.
What it does not prove
Sterility. A purity test does not look for living bacteria or fungi. A sample can be highly pure and still contaminated with microorganisms. Sterility testing is a separate procedure, and it is not part of a standard peptide test.
Endotoxin. Endotoxins are fragments of certain bacteria's cell walls. They can remain even after bacteria are killed, and they are detected with a specific test called the LAL assay. Standard peptide testing does not include it.
Heavy metals. Contamination with metals such as lead or arsenic requires its own analysis and is not part of a standard purity test.
Other contaminants. Laboratories offer additional screens, for example for contamination with other peptides or for residual processing chemicals. These are optional extras, not part of the standard test.
A different batch. A report describes the sample that was submitted, from one production run. It says nothing about any other batch, even one of the same compound from the same supplier.
Your specific vial. Even within a batch, a report describes the sample tested. The batch code is what links the two, which is why we ask you to check it.
What happens after testing. A report is a snapshot. It cannot tell you how a vial was stored afterwards, or what happens to a solution once it has been reconstituted.
Net peptide content. HPLC purity describes the share of the detected material that is the target compound. It does not measure water, salts or other non-peptide material in the powder. We explain this on HPLC purity explained.
Why this matters
These limits are one of the reasons AVERON supplies compounds for laboratory research only, and why our pages contain no instructions for use in people. A clean purity report is not the same as a pharmaceutical product manufactured and tested for human use, and we will not suggest otherwise.
What to look for
If a report lists sterility, endotoxin or heavy-metal results, those tests were ordered and you can read the results. If it does not list them, assume they were not performed. Where we commission additional tests on a batch, they will appear on that batch's report on the laboratory's server.