Subject
Verification & Lab Data: Research Articles for US Labs
How to check a peptide certificate of analysis without taking the seller’s word for it: what an HPLC purity figure measures, why fill quantity is a separate number, how a Janoshik report is laid out, how to confirm a report with the lab that issued it, and the signs that a certificate has been altered.
- articles
- 5
- sources cited
- 0
- last revised
- Aug 27
The Full Library
Certificate Checking
5- COAs & Testing
Purity vs Fill Accuracy: Why One Number Is Not Enough
Two independent measurements, and why suppliers publish only the first
- COAs & Testing
How to Verify a Peptide COA in Three Steps
A certificate is only worth what its verification path is worth, and most of the market has no verification path at all
- COAs & Testing
How to Spot a Fake Peptide COA: Seven Red Flags
Most bad certificates are not forgeries. They are real documents used to say something they do not say.
- COAs & Testing
How to Read a Certificate of Analysis
What each figure on a peptide COA proves — and what it does not
- COAs & Testing
Janoshik Testing Explained: How Every Eppix Batch Is Verified
What the laboratory measures, what its certificates report, and how to check any of ours on its database in two minutes
Other Subjects
Each subject has its own page listing every article filed under it.
Who Writes These
Adam Reeves
Research Editor, Eppix Labs
Writes the compound profiles, the certificate-checking guides and the FDA reading in this library. The profile page sets out the scope of the role and lists every article under the byline.
View profile and articles →Editorial Rules
- Where an article summarizes published studies, claims carry a bracketed number that resolves to a References entry with a PubMed ID or a link to the source document.
- Where an article shows a certificate, it is drawn from the lab-results library with its batch number, rather than retyped into the text.
- Each article carries a named byline and the date it was first published.
- Statements about FDA status point to the agency or Federal Register document behind them.
- Laboratory research reference only. No dosing, administration or human-use guidance appears anywhere in the library.
Get the Research Digest
Periodic research summaries and new references, sent to the research list only.
Sold for in vitro laboratory research only. Not a drug, supplement or FDA-approved product, and not for human or veterinary use.