Public COA audit
GHK-Cu · GHK-Cu 100mg
Audited September 5, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 88
- Confidence
- 92%
- Panels
- 2/7
- Purity (printed)
- 99.753%
Scored high because the document is mostly consistent but carries soft concerns, limited panel coverage (2/7), and 2 soft concerns. To improve: include identity, purity, and endotoxin at minimum.
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- Red Cap
- Identity method
- HPLC with UV Detection Coupled with Mass Spectrometry
- Sample date
- 2026-04-09
- Issue date
- 2026-04-11
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).
GHK-Cu confirmed, [M+2H]2+ 171.05, [M+H]+ 341.05
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.753%
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.
High purity confirmed
99.753% purity by HPLC is excellent and normal for research-grade peptides
Identity confirmed by MS
Mass spectrometry shows expected molecular ions [M+2H]2+ at 171.05 and [M+H]+ at 341.05, consistent with GHK-Cu
Non-standard lot identifier
Lot number 'Red Cap' is descriptive rather than alphanumeric, which is unusual but not necessarily problematic
Dates are reasonable
Received 2026-04-09, reported 2026-04-11 (2-day turnaround is normal)
Lab identified with verification URL
Freedom Diagnostics with searchable verification at FreedomDiagnosticsTesting.com and accession number 2604090054
Limited scope - purity/identity only
This COA covers purity and identity testing only. No heavy metals, microbial, endotoxin, sterility, or solvent/water content panels present. This is common for basic analytical testing but buyers should verify if additional safety testing exists separately
Professional presentation
Document includes HPLC chromatogram, mass spectrum, product photo, and clear labeling. Signed by Alex Johnson, Principal Chemist
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.