29 research-peptide vendors have published 20 or more COAs through Kovera Labs. Ion Peptide leads at 105 records with zero flags. Two heavy publishers have concentrated quality issues. The full ranked table, deduped flag breakdown, and what to do with it as a buyer.
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Eli Whitmer
Lab & COA desk
About
Eli runs the lab-data side of the desk: COA reading, chromatogram interpretation, the Janoshik corpus, and the COA verifier tool. His background is analytical chemistry — twelve years in HPLC-MS method development at QC labs serving the supplements and pharmaceutical industries. He's the reason vialaudit asks specific questions about peak shape, integration windows, and signal-to-noise rather than just citing the purity percentage at the bottom of a report. If a vendor's COA uses a method that wouldn't pass an FDA inspection, Eli writes about it. Eli writes under a pen name. He still works in the analytical-chem world; a public byline on grey-market peptide commentary would be career-difficult. The pseudonymity is the price of getting the analysis at all.
Topic specialty
COA reading and chromatogram interpretation, the Janoshik public-test corpus, the COA verifier tool, lab-method reviews, reconstitution and storage research.
Bibliography
We mirrored every certificate Kovera Labs has published. 146 vendor-clients, 99.9% median purity, 0.8% explicit failure rate - plus three vendors whose results stand out for the wrong reasons.
Cloudiness in a reconstituted peptide vial is one of the most common buyer panics. It's sometimes harmless aggregation, sometimes contamination, sometimes solvent-induced precipitation. Here's how to tell which one.
Step-by-step BAC water + syringe math for the three retatrutide vial sizes most vendors stock. Built around the TRIUMPH-4 dose titration. Research only, not human-use guidance.
Tesamorelin is a synthetic GHRH analog that prompts the pituitary to release endogenous GH. HGH is the hormone itself. Here's what the literature says about both, why a growing community is switching from one to the other, and what to consider before you do.
Short answer: yes. Janoshik is a real EU third-party lab - we audited 200 of its public reports to check purity, identity, and whether failures get published. Here's what held up.
How to verify a Janoshik COA against the public database in ninety seconds. The four-step check catches fabricated certificates, edited figures, and wrong-batch COAs.
43% of vendor-claimed purity figures failed independent retesting. The gap concentrates in three patterns you can avoid before clicking buy.
Bacteriostatic water, syringe selection, dose math, storage. The reference we wish existed when we started — the mechanics of reconstituting lyophilized peptide vials from a research-protocol perspective.
Contact
Tips, corrections, or comments on lab desk coverage: lab@vialaudit.com