Public COA audit
Metformin
Audited September 5, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 72
- Confidence
- 85%
- Panels
- 2/7
- Purity (printed)
- 100%
Scored moderately because the document is mostly consistent but carries soft concerns, limited panel coverage (2/7), 4 soft concerns, and notable note: "Missing Batch/Lot Number". To improve: include identity, purity, and endotoxin at minimum.
Document details
Fields extracted from the certificate — not order or payment data.
- Identity method
- LC-MS with UV detection
- Sample date
- 2024-12-27
- Issue date
- 2025-01-03
Original certificate
Embedded copy of the stored COA PDF or image. Download it for your records — PeptIQ’s audit is separate from the lab document itself.
7-panel checklist
Had data + good, had data + bad, reported without pass/fail, or missing. Missing lowers thoroughness — you decide whether that panel matters; PeptIQ’s score still factors coverage.
2 of 7 present · 2 passed · 0 failed · 0 reported · 5 missing
Missing is a thoroughness gap — not automatically bad. PeptIQ’s legitimacy score still weighs panel coverage; you can down-weight panels that don’t matter for your use case.
Identity
Tested · passed · core
Compound identity confirmed (e.g. HPLC, mass spec).
Metformin
Purity
Tested · passed · core
Reported purity percentage for the analyte.
100%
Heavy metals
Not on this certificate file
Lead, arsenic, cadmium, mercury, or similar limits.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
Microbial
Not on this certificate file
Bioburden / microbial limits testing.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
Endotoxin
Not on this certificate file · core
LAL or chromogenic endotoxin assay.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
Sterility
Not on this certificate file
Sterility testing where applicable.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
Residual solvent / water
Not on this certificate file
Residual solvents or water content limits.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
How to read this
Had data · good
Panel present with a pass (or clear acceptance).
Had data · bad
Panel present with a fail — a concrete quality signal.
Had data · unclear
Value reported without an explicit pass/fail mark.
Missing on this file
Not on this certificate file. Lowers file thoroughness; a sibling endotoxin/purity report for the same lot may still exist. PeptIQ’s score still factors coverage.
Findings
Evidence-linked observations from this audit.
Missing Batch/Lot Number
The Batch/Lot # field is present in the document layout but is completely blank, which is unusual for a legitimate COA as lot traceability is a fundamental quality control requirement.
Quantity Discrepancy
Specification shows 500mg but result shows 483mg (96.6% of expected), yet purity is reported as 100%. This suggests either the quantity measurement is separate from purity or there may be a calculation inconsistency.
Limited Testing Scope
This COA only covers identity and purity testing. No heavy metals, microbial, endotoxin, sterility, or residual solvent/water testing is included. This is a purity/identity-scoped report only.
Unverifiable Lab
BioRegen appears to be the testing lab, but there is limited publicly available information to verify this as an established independent testing laboratory. The verification URL is provided but cannot be confirmed without external access.
Professional Presentation
Document includes proper chromatograms (HPLC and mass spectrum), QR code for verification, security key, analyst signature, and PubChem reference link, all consistent with legitimate analytical reporting.
Identity Confirmed
Identity test shows Metformin matches specification with LC-MS confirmation and mass spectrum showing expected molecular ion peak at 130.1079 (consistent with C4H11N5, MW 129.167).
Reasonable Timeline
Sample received 2024-12-27, analysis conducted 2025-01-03 - a 7-day turnaround is reasonable for analytical testing.
Timing & next steps
Practical follow-ups based on document age and gaps.
coa age
This COA was issued over a year ago (610 days) — consider whether a retest is warranted for this batch.
PeptIQ COA reports analyze document content and publicly verifiable lab signals. They are educational and not a guarantee of product quality, legality, or safety. Always consult a qualified professional before making health decisions. We never publish purchase prices, shipping details, or uploader identity.