Public COA audit
GHK-Cu
Audited July 28, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 62
- Confidence
- 75%
- Panels
- 2/7
- Purity (printed)
- 99.816%
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- 665394
- Identity method
- HPLC with UV Detection Coupled with Mass Spectrometry
- Sample date
- 2026-04-06
- Issue date
- 2026-04-07
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
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.816%
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 99.816% with clear chromatogram showing single major peak
Mass spec confirmation
Mass spectrum shows expected [M+2H]2+ at 171.10 and [M+H]+ at 341.05, consistent with GHK-Cu
Lab verification uncertain
Freedom Diagnostics Testing website and contact information provided, but independent verification of lab accreditation not performed
Basic presentation
COA has minimal formatting and lacks detailed methodology, QC parameters, or analyst credentials beyond name
Limited testing scope
Only identity and purity panels present; no heavy metals, microbial, endotoxin, sterility, or solvent/water content testing
Lot number present
Lot 665394 clearly documented
Dates documented
Received 2026-04-06, reported 2026-04-07 (one-day turnaround)
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.