Public COA audit
TB-500 · Thymosin Beta-4
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)
- 99.42%
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
- I2326032
- Identity method
- LC-MS
- Sample date
- 2026-07-08
- Issue date
- 2026-07-10
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).
Thymosin Beta-4
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.42%
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.
Pass (both replicates)
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
99.42% purity by HPLC-UV is within normal range for research-grade peptides
Identity confirmed by LC-MS
Thymosin Beta-4 confirmed with mass spectrometry data and chromatogram provided
Batch/lot number present
Lot I2326032 clearly stated
Dates within normal range
Received 2026-07-08, reported 2026-07-10 (2-day turnaround is reasonable)
Lab verification uncertain
Freedom Diagnostics Testing website and contact information provided, but independent verification of lab accreditation/credentials not possible from document alone
Limited testing panels
Only identity, purity, and endotoxin testing performed. No heavy metals, microbial, sterility, or residual solvent testing. This is common for basic peptide COAs but limits comprehensive quality assurance
Professional presentation
Document includes chromatogram, mass spec data, QR code, signature, and standard disclaimers consistent with legitimate testing lab reports
Net content overfill
11.31 mg net content for a 10mg product (13.1% overfill) is within acceptable manufacturing variance but worth noting
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.