Public COA audit
GHK-Cu
Audited September 5, 2026
Document structure and test panels align with what we expect from authentic lab reports.
- Legitimacy
- 95
- Confidence
- 92%
- Panels
- 5/7
- Purity (printed)
- 99.62%
Scored high because document structure and panels look consistent with authentic lab output and broad panel coverage (5/7).
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- CR-GHKCU-100-2606-1
- Identity method
- HPLC-RTM (retention time match)
- Sample date
- 2026-06-04
- Issue date
- 2026-06-09
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.
5 of 7 present · 5 passed · 0 failed · 0 reported · 2 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.
99.62%
Heavy metals
Tested · passed
Lead, arsenic, cadmium, mercury, or similar limits.
All Not Detected (As, Cd, Cr, Hg, Pb)
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 · passed · core
LAL or chromogenic endotoxin assay.
NMT 0.05 EU/mL
Sterility
Tested · passed
Sterility testing where applicable.
No Growth
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 with conformity testing
99.62% purity confirmed across three samples (mean 99.57%, std dev 0.033%), demonstrating batch consistency. Includes HPLC chromatogram and detailed conformity data.
Identity confirmed by HPLC-RTM
GHK-Cu identity confirmed by chromatographic retention time comparison with reference standard.
Comprehensive testing panel
Full QC panel includes purity, identity, heavy metals (ICP-MS), endotoxin (USP <85>), sterility (PCR), and fentanyl screening. Missing only microbial count and residual solvent panels.
Clear batch identification
Lot number CR-GHKCU-100-2606-1, COA number COA-2026-NBKKUT, accession ACC-2026-3978 all clearly stated.
Dates consistent and valid
Received 2026-06-04, analyzed and issued 2026-06-09. All dates are on or before 2026-09-05 (current date) and show appropriate processing timeline.
ISO/IEC 17025 accredited lab
ILS Laboratories claims ISO/IEC 17025 accreditation, includes full contact information, verification URL with access code W287DNAF, and QR code for authentication.
Professional presentation
Well-formatted two-page report with detailed methodology notes, chromatogram, conformity testing results table, and proper signatures. Includes photo of actual vial.
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.