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
- 72
- Confidence
- 85%
- Panels
- 3/7
- Purity (printed)
- 99.86%
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- CR-GHK100-0212-1
- Identity method
- HPLC with UV Detection Coupled with Mass Spectrometry (LCMS/MS)
- Sample date
- 2026-02-16
- Issue date
- 2026-02-17
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 · 3 passed · 0 failed · 0 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).
GHK-Cu confirmed
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.86% average (Vial 1: 99.84%, Vial 2: 99.90%, Vial 3: 99.85%)
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
Tested · passed · core
LAL or chromogenic endotoxin assay.
Replicate 1: ≤ 0.05 EU/mL, Replicate 2: ≤ 0.05 EU/mL
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
Average purity of 99.86% across three vials is consistent with quality research-grade peptide. HPLC chromatogram shows clean single peak.
Mass spec confirmation
Mass spectrometry data shows expected [M+2H]2+ and [M+H]+ peaks for GHK-Cu, confirming molecular identity.
Batch number present
Lot number CR-GHK100-0212-1 clearly documented with accession number 2602150033.
Dates documented
Received date 02/16/2026 and reported date 2/17/2026 are clearly stated and represent reasonable turnaround time.
Lab verification unclear
Freedom Diagnostics is listed with website FreedomDiagnosticsTesting.com and email [email protected]. Independent verification of this lab's accreditation status is recommended.
Limited testing panels
COA includes identity, purity, and endotoxin testing but lacks heavy metals, microbial, sterility, and residual solvent/water content panels. This is not uncommon for research peptides but represents incomplete characterization.
Professional presentation
Document includes chromatogram, mass spec data, product photos, and appropriate research-use-only disclaimer. Layout is professional and organized.
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.