Public COA audit

Tirzepatide

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
92
Confidence
88%
Panels
2/7
Purity (printed)
99.7%

Document details

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

Batch / lot
TZ20250915
Identity method
HPLC with retention time and spectral matching
Issue date
2025-10-03

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).

    ID by RT: 1.00, ID by Spectral: 1000

  • Purity

    Tested · passed · core

    Reported purity percentage for the analyte.

    99.791% (SPL-1901-S01), 99.699% (SPL-1901)

  • 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 99.7-99.8% is excellent and typical for research-grade peptides. Two samples tested with consistent results.

  • Identity confirmed by multiple methods

    Both retention time (RT) and spectral analysis confirm identity. Coelution control and system suitability checks passed.

  • Batch/lot number present

    Client SID TZ20250915 clearly documented

  • Sample date not specified

    Published date is 2025-10-03, but no explicit sample receipt or collection date is documented

  • Lab information complete

    TrustPointe Analytics LLC with full address, contact info, verification URL and QR code provided

  • Limited testing scope

    Only identity and purity panels performed. No heavy metals, microbial, endotoxin, sterility, or residual solvent testing. This is common for basic peptide analysis but limits safety assurance.

  • Professional presentation

    Document includes signatures, QR code verification, sample photo attachment, and clear data presentation

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.