Public COA audit
TB-500 · Thymosin β4
Audited July 29, 2026
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)
- 99.71%
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- q8y5p9h
- Identity method
- HPLC-UV-MS
- Sample date
- 2025-10-14
- Issue date
- 2025-10-23
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).
ID Confirmed
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.71%
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.
High chromatographic purity confirmed
99.71% purity by HPLC-UV/MS with supporting chromatogram showing clean single peak at 5.29 minutes
Identity confirmed with mass spectrometry
Thymosin β4 identity confirmed by HPLC-UV-MS with reference spectrum match showing characteristic m/z peaks at 711, 622, 553, 829
Batch/lot number present
Lab # 129640, Test Certificate ID: q8y5p9h
Dates are logical and complete
Sample received 10/14/2025, testing performed 10/22/2025, report issued 10/23/2025 - all dates are sequential and reasonable
Testing lab identified with contact information
Krause Analytical LLC, 8127 Mesa Drive Suite B-206, Austin, TX 78759, signed by Mark C. Krause, Laboratory Director
Verification URL provided
Certificate includes verification URL: https://finnrick.com/verify with Test Certificate ID q8y5p9h
Limited testing scope
COA only includes identity and purity testing. No heavy metals, microbial, endotoxin, sterility, or residual solvent testing performed. This is common for basic peptide analysis but limits comprehensive quality assessment.
Professional presentation with supporting data
Document includes sample photos, detailed chromatogram, mass spectrum comparison with reference standard, and proper laboratory disclaimers
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.