Public COA audit
Retatrutide
Audited September 5, 2026
Missing panels or key metadata — not enough evidence to treat this as a full certificate.
- Legitimacy
- 45
- Confidence
- 75%
- Panels
- 1/7
Scored poorly because the file is incomplete or not a full COA, limited panel coverage (1/7), 2 critical findings, and notable note: "Identity confirmed by HPLC-MS". To improve: upload the full certificate (or the matching sibling purity/endotoxin report) and include identity, purity, and endotoxin at minimum.
Document details
Fields extracted from the certificate — not order or payment data.
- Identity method
- HPLC-MS
- Issue date
- 2024-06-09
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.
1 of 7 present · 1 passed · 0 failed · 0 reported · 6 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).
Expected: 4728.47 Da, Measured: 4728.53 Da
Purity
Not on this certificate file · core
Reported purity percentage for the analyte.
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.”
Heavy metals
Not on this certificate file
Lead, arsenic, cadmium, mercury, or similar 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.”
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
Not on this certificate file · core
LAL or chromogenic endotoxin assay.
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.”
Sterility
Not on this certificate file
Sterility testing where applicable.
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.”
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.
Identity confirmed by HPLC-MS
Molecular weight matches expected value (4728.47 Da expected vs 4728.53 Da measured). MS spectrum shows appropriate isotopic distribution for Retatrutide.
Identity-only report - no purity data
This document only contains mass spectrometry identity confirmation. No HPLC purity percentage, chromatogram, or quantitative purity analysis is provided. This is an identity-scoped report only.
No batch/lot number
Document does not specify a batch or lot number for traceability.
No sample/analysis date specified
Only issue date (2024-06-09) is provided. No sample receipt date or analysis date is documented.
No safety panels
No endotoxin, heavy metals, microbial, sterility, or residual solvent testing is included in this report. This appears to be a partial/identity-only COA.
Lab contact information provided
MZ Biolabs contact details and website (www.mzbiolabs.com) are included. Analyst name (Ken Pendarvis, ChE) and signature present.
Large watermark obscures data
A large 'SAMPLE' watermark covers significant portions of the MS spectrum, which may indicate this is a sample/template document rather than a final issued COA.
Timing & next steps
Practical follow-ups based on document age and gaps.
coa age
This COA was issued over a year ago (818 days) — consider whether a retest is warranted for this batch.
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.