Public COA audit
GHK-Cu · GHK-CU 100mg
Audited July 29, 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%
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
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 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 purity confirmed
HPLC purity of 99.753% is excellent and typical for research-grade peptides
Identity confirmed by MS
Mass spectrometry shows expected molecular ion peaks [M+2H]2+ at 171.05 and [M+H]+ at 341.05, consistent with GHK-Cu
Verifiable testing lab
Freedom Diagnostics provides searchable verification via FreedomDiagnosticsTesting.com with accession number 2604090054
Reasonable turnaround time
2-day turnaround from received date (04/09/2026) to reported date (04/11/2026) is normal for HPLC-MS analysis
Non-standard lot identifier
Lot number 'Red Cap' is descriptive rather than alphanumeric, which is unusual but not necessarily problematic for small-batch research compounds
Limited testing scope
COA only includes identity and purity testing; no heavy metals, microbial, endotoxin, sterility, or solvent/water content panels present
Professional presentation
Document includes chromatogram, mass spectrum, product photo, and chemist signature (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.