Public COA audit
GHK-Cu
Audited July 29, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 72
- Confidence
- 83%
- Panels
- 2/7
- Purity (printed)
- 99.9%
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- fvcfc7z
- Identity method
- HPLC-UV-MS
- Sample date
- 2026-02-13
- Issue date
- 2026-02-26
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).
ID Confirmed
Purity
Tested · passed · core
Reported purity percentage for the analyte.
>99.9%
Heavy metals
Not on this COA
Lead, arsenic, cadmium, mercury, or similar limits.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Microbial
Not on this COA
Bioburden / microbial limits testing.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Endotoxin
Not on this COA · core
LAL or chromogenic endotoxin assay.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Sterility
Not on this COA
Sterility testing where applicable.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Residual solvent / water
Not on this COA
Residual solvents or water content limits.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
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
Not on this certificate. Lowers thoroughness; you decide if that panel matters for your use case. PeptIQ’s score still factors coverage.
Findings
Evidence-linked observations from this audit.
High chromatographic purity
HPLC purity >99.9% is normal for research-grade peptides and supported by clean chromatogram showing single dominant peak at 0.46 min
Identity confirmed by mass spectrometry
Mass spectrum matches reference standard for GHK-Cu (CAS 49557-75-7), with characteristic fragmentation pattern visible
Batch/lot number present
Lot fvcfc7z clearly marked on certificate and vial images
Dates are consistent and reasonable
Sample received 2/13/2026, tested 2/19/2026, report issued 2/26/2026 - all dates are sequential and within normal turnaround time
Branding inconsistency
Document shows dual branding: 'Finnrick' in header/footer but 'Krause Analytical LLC' as testing lab and signatory. This may indicate a reseller/white-label arrangement but creates ambiguity about the actual testing entity
Verification URL not independently confirmed
Certificate provides verification URL https://finnrick.com/verify with certificate ID fvcfc7z, but actual verification status cannot be confirmed from document alone
Limited testing scope
Only identity and purity panels performed. Methods summary describes endotoxin and metals testing procedures (USP/NF 85, USP/NF 233) but no results are reported for these panels
Professional presentation
Document includes chromatogram, mass spectrum comparison, detailed methods summary, and vial photographs. Formatting is consistent with professional analytical lab reports
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.