Public COA audit

Tirzepatide · GLP TZ

Audited July 28, 2026

Mostly consistent, with concerns

Several fields check out, but we found issues worth reviewing before you rely on this document.

Legitimacy
72
Confidence
85%
Panels
4/7
Purity (printed)
99.95%

Document details

Fields extracted from the certificate — not order or payment data.

Batch / lot
GT30-A5-062026-4
Identity method
LC-MS
Sample date
2026-06-03
Issue date
2026-06-07

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.

4 of 7 present · 4 passed · 0 failed · 0 reported · 3 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).

    GLP TZ Confirmed

  • Purity

    Tested · passed · core

    Reported purity percentage for the analyte.

    99.95%

  • 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

    Tested · passed

    Bioburden / microbial limits testing.

    No Detectable Microbial DNA

  • Endotoxin

    Tested · passed · core

    LAL or chromogenic endotoxin assay.

    Pass (both replicates)

  • 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-UV purity of 99.95% with individual vial measurements of 99.92% and 99.98%. This is normal for research-grade peptides.

  • Identity confirmed by LC-MS

    Mass spectrometry confirmation shows GLP TZ identity with chromatogram and mass spectrum provided.

  • Batch information present

    Lot number GT30-A5-062026-4 clearly stated with accession number 2606030645.

  • Dates within normal range

    Received 2026-06-03, reported 2026-06-07 (4-day turnaround). Both dates are before today (2026-07-28).

  • Lab verification uncertain

    Freedom Diagnostics Testing website and contact information provided, but independent verification of lab accreditation/credentials not possible from document alone.

  • Missing heavy metals and residual solvent testing

    No heavy metals panel or residual solvent/water content testing reported. This is common but represents incomplete safety profiling.

  • Professional presentation

    Document includes logo, chromatogram, mass spectrum, QR code, signature, and detailed methodology descriptions consistent with legitimate testing lab format.

  • Generic email domain

    Contact email uses @FreedomDiagnostics.net rather than matching the .com domain shown elsewhere, which is a minor inconsistency.

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.