Public COA audit
Glutathione
Audited July 28, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 72
- Confidence
- 83%
- Panels
- 4/7
- Purity (printed)
- 99.86%
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- GLUT-062026-1
- Identity method
- LC-MS
- Sample date
- 2026-06-19
- Issue date
- 2026-06-22
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.
4 of 7 present · 4 passed · 0 failed · 0 reported · 3 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).
Glutathione
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.86%
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
Tested · passed
Bioburden / microbial limits testing.
No Detectable Microbial DNA
Endotoxin
Tested · passed · core
LAL or chromogenic endotoxin assay.
Pass (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-UV purity of 99.86% with individual vial measurements of 99.82% and 99.90%. This is normal for research-grade glutathione.
Identity confirmed by LC-MS
Mass spectrometry confirmation provided with chromatogram showing clean peak.
Batch and lot information present
Lot number GLUT-062026-1, Accession #2606190001, Search Code Whol2606190001.
Dates are reasonable
Received 2026-06-19, Reported 2026-06-22. Three-day turnaround is plausible for this testing scope.
Lab verification uncertain
Freedom Diagnostics Testing is not a widely recognized third-party testing laboratory in the peptide industry. Website and contact information provided but independent verification of accreditation/credentials not possible from document alone.
Missing heavy metals and residual solvent testing
No heavy metals panel or residual solvent/water content analysis present. While not always required, these are common for comprehensive peptide COAs.
Professional presentation
Document includes chromatogram, mass spectrum, detailed methodology, appropriate disclaimers, and signature. Layout is consistent with legitimate testing reports.
Net content measurements unusually precise
Net content reported to 0.01 mg precision (1490.75 mg, 1519.70 mg) is extremely precise for lyophilized powder weighing, which typically has ±1-2% variability. This level of precision is uncommon but not impossible with high-end analytical balances.
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.