Public COA audit
GLP-TZ · GLP2-T 30mg
Audited July 28, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 88
- Confidence
- 92%
- Panels
- 3/7
- Purity (printed)
- 99.904%
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- CRTZ-30-1025-01
- Identity method
- HPLC with UV Detection Coupled with Mass Spectrometry
- Sample date
- 2025-11-06
- Issue date
- 2025-11-08
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).
99.904%
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.89% (Vial 1), 99.91% (Vial 2)
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.
≤ 0.05 EU/mL (both replicates)
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 99.89-99.91% across two vials is consistent with high-quality research peptide standards
Mass spec confirmation
Mass identification shows 99.904% with clear mass spectrum displaying expected charge states [M+2H+Na]3+ and [M+2H+2Na]4+
Batch information present
Lot number CRTZ-30-1025-01 clearly documented with net content measurements for two vials
Dates within normal range
Received 11/6/2025, reported 11/8/2025 - 2-day turnaround is reasonable for peptide testing
Lab identification present
Freedom Diagnostics with searchable URL and contact information provided. Principal Chemist Stephen Schmidt signed
Limited testing panels
Only identity, purity, and endotoxin testing performed. No heavy metals, microbial, sterility, or residual solvent testing documented
Professional presentation
Document includes chromatogram, mass spectrum, product photos, and appropriate disclaimers for research use
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.