Public COA audit
Tirzepatide · Tirzepatide 10mg
Audited September 5, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 72
- Confidence
- 85%
- Panels
- 3/7
- Purity (printed)
- 99.88%
Scored moderately because the document is mostly consistent but carries soft concerns, limited panel coverage (3/7), 3 soft concerns, and notable note: "High purity confirmed". To improve: include identity, purity, and endotoxin at minimum.
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- GT10-052026-2
- Identity method
- LC-MS
- Sample date
- 2026-05-21
- Issue date
- 2026-05-23
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.
3 of 7 present · 3 passed · 0 failed · 0 reported · 4 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.
99.88%
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
Tested · passed · core
LAL or chromogenic endotoxin assay.
Replicate 1: Pass, Replicate 2: Pass, Sensitivity ≤0.05 EU/mL
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.
High purity confirmed
HPLC-UV purity of 99.88% (average of two vials: 99.89% and 99.87%) is excellent and typical for research-grade peptides. Chromatogram shows clean single peak.
Identity confirmed by LC-MS
Mass spectrometry confirmation provided with mass spectrum showing expected GLP-TZ peaks. Identity result stated as 'GLP TZ Confirmed'.
Endotoxin testing performed
LAL assay per USP <85> with two replicates both passing at sensitivity ≤0.05 EU/mL, which is appropriate for research peptides.
Batch information present
Lot number GT10-052026-2 clearly stated with accession number 2605210555 and search code for verification.
Dates are reasonable
Received 2026-05-21, reported 2026-05-23 (2-day turnaround). Both dates are before today (2026-09-05) and represent normal testing timeline.
Lab verification unclear
Freedom Diagnostics Testing website and contact provided, but no accreditation information (ISO 17025, GMP, etc.) visible on this COA. Lab claims USA operation but no physical address shown.
Limited testing scope
COA only includes identity, purity, and endotoxin panels. Missing heavy metals, microbial contamination, sterility, and residual solvents/water content testing. This is common for basic vendor testing but limits comprehensive quality assessment.
Generic signature
Signature appears to be a generic script signature without printed name of specific chemist. 'Principal Chemist' title shown but no individual name provided for accountability.
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.