Public COA audit

Retatrutide

Audited July 29, 2026

Mostly consistent, with concerns

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

Legitimacy
92
Confidence
93%
Panels
2/7
Purity (printed)
99.38%

Document details

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

Batch / lot
R-1001
Identity method
LC-MS/MS
Sample date
2026-07-15
Issue date
2026-07-18

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).

    Retatrutide confirmed via LC-MS/MS precursor [M+5H]5+ 947.90 Da with MRM transitions

  • Purity

    Tested · passed · core

    Reported purity percentage for the analyte.

    99.38%

  • 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.

  • Comprehensive LC-MS/MS identity confirmation

    Identity confirmed via precursor ion mass [M+5H]5+ 947.90 Da with quantifier (947.9›136.1) and qualifier (947.9›110.1) MRM transitions. Retention time 3.634 min. Clean chromatogram with single dominant peak.

  • High chromatographic purity

    99.38% purity by HPLC-MS/MS meets specification (≥98%). This is normal for research-grade peptides and indicates minimal peptide-related impurities.

  • Complete batch identification

    Lot number R-1001, Report COA-2026-SC-00309, Lab ID RET-094. CAS 2381089-83-2, molecular formula and weight provided (C221H342N46O68, 4731.3 g/mol).

  • Appropriate timeline

    Received 2026-07-15, analyzed 2026-07-18, issued 2026-07-18. Three-day turnaround is reasonable for LC-MS/MS analysis.

  • Lab identification present

    Testing lab identified as SideChain Analytics. Verification URL and QR code provided (Peptidetestcanada.ca/verify with code PTC-GNUDEJPX). Client contact info included.

  • Limited testing scope

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

  • Professional presentation

    Well-formatted report with clear sections, sample photograph, detailed chromatogram, appropriate disclaimers for research use only, and method parameters (Agilent Poroshell 120 EC-C18 column, formic acid mobile phases).

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.