Public COA audit
GHK-Cu
Audited September 5, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 72
- Confidence
- 88%
- Panels
- 3/7
- Purity (printed)
- 99.9%
Scored moderately because the document is mostly consistent but carries soft concerns, limited panel coverage (3/7), 3 soft concerns, and notable note: "High purity confirmed". To improve: include identity, purity, and endotoxin at minimum.
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
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.
3 of 7 present · 2 passed · 0 failed · 1 reported · 4 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 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
Tested · result on file · core
LAL or chromogenic endotoxin assay.
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.
High purity confirmed
Chromatographic purity >99.9% by HPLC-UV/MS with supporting chromatogram showing single dominant peak at 0.46 min
Identity confirmed
Mass spectrum matches GHK-Cu reference standard (CAS 49557-75-7), with molecular ion peaks visible in MS data
Batch number present
Lot fvcfc7z clearly marked on vial photo and throughout document
Dates logical and valid
Sample received 2/13/2026, tested 2/19/2026, report issued 2/26/2026 - all dates are sequential and on or before 2026-09-05
Vendor/lab name mismatch
Document header shows 'Finnrick' branding and Finnrick.com, but footer and signature reference 'Krause Analytical LLC' - appears to be a vendor (Finnrick) using contract lab (Krause) services, but dual branding may cause confusion
Methods described but results missing
Page 3 describes methods for Endotoxins (USP/NF 85) and Metals (USP/NF 233), but no actual test results are shown in this report - this may be a purity/identity-scoped report only
Limited testing scope
This COA only presents purity and identity results. No microbial, sterility, residual solvent, or water content testing shown. Endotoxin and metals methods are described but not executed in this report
Professional presentation
Document includes vial photos, HPLC chromatogram, mass spectrum comparison, detailed methods summary, and proper USP/NF method references
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.