Public COA audit

Glutathione · Glutathione 1500mg

Audited July 28, 2026

Mostly consistent, with concerns

Several fields check out, but we found issues worth reviewing before you rely on this document.

Legitimacy
72
Confidence
83%
Panels
3/7
Purity (printed)
99.73%

Document details

Fields extracted from the certificate — not order or payment data.

Batch / lot
GLUT-052026-2
Identity method
LC-MS
Sample date
2026-05-06
Issue date
2026-05-08

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).

    Glutathione

  • Purity

    Tested · passed · core

    Reported purity percentage for the analyte.

    99.73%

  • 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.

    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 99.73% is within normal range for research-grade glutathione

  • Identity confirmed by LC-MS

    Mass spectrometry confirmation provided with chromatogram showing single major peak

  • Endotoxin testing performed

    Two replicates passed with sensitivity ≤0.05 EU/mL per USP <85>

  • Batch information present

    Lot number GLUT-052026-2 clearly stated with accession number 2605060429

  • Dates within normal range

    Received 2026-05-06, reported 2026-05-08 (2-day turnaround)

  • Lab verification unclear

    Freedom Diagnostics Testing website and contact provided, but independent verification of lab accreditation/credentials not possible from document alone

  • Limited testing panels

    Heavy metals, microbial, sterility, and residual solvent/water testing not performed or reported

  • Generic template appearance

    Document uses standard template format with stock vial images; professional but not distinctive

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.