Public COA audit
Tirzepatide · GLP TZ
Audited July 28, 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)
- 99.617%
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- GT30-032026-4
- Identity method
- HPLC with UV Detection Coupled with Mass Spectrometry
- Sample date
- 2026-03-20
- Issue date
- 2026-03-22
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 at 99.617%
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.617%
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
Tested · passed · core
LAL or chromogenic endotoxin assay.
Replicate 1: Pass, Replicate 2: Pass
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 99.617% with supporting chromatogram showing clean single peak
Mass spec confirmation
Mass spectrometry data shows expected molecular ion peaks [M+4H]4+ at 1204.10 and [M+3H]3+ at 1605.25, consistent with tirzepatide
Endotoxin testing performed
Duplicate endotoxin threshold tests both passed
Lab verification unclear
Freedom Diagnostics claims to be 'Proudly Owned and Operated in the USA' but independent verification of lab accreditation/credentials not readily available from document
Inconsistent compound naming
Product listed as 'Tirzepatide 30mg' but identity shows 'GLP TZ' and 'GLP 1Z' - inconsistent nomenclature may indicate template reuse
Batch information present
Lot number GT30-032026-4 and accession number 2603200152 provided
Dates within normal range
Received 2026-03-20, reported 2026-03-22 - 2 day turnaround is reasonable
Limited testing scope
No heavy metals, microbial, sterility, or residual solvent testing reported - common for research-grade but limits comprehensive safety assessment
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.