All Glutathione Certificate of Analysis results— 401 COAs
TitrateLab · Certificate of Analysis

Glutathione 99.7% Purity — Peptide TechnologiesCertificate of Analysis · Independent third-party lab result

Tested purity 99.7% High purity · 99.701%
Dose vs label -1.8% Essentially at label
Evidence Source archived
Test date
2025-10-28
Testing lab
Freedom Diagnostics
Batch / lot
GLUT-2519
Quantity
196.39 mg
label 200mg · tested 196.39 mg
Endotoxins
Assay method
HPLC + MS
Label dose
200mg
Context

How this result compares

This Glutathione certificate's tested purity of 99.70% ranks higher than 43% of the 401 Glutathione certificates with a purity result we have catalogued (median 99.74%).

Tested 2025-10-28 by Freedom Diagnostics via HPLC + MS. This test is newer than 12% of our catalogued Glutathione certificates.

Peptide Technologies has 149 certificates in our corpus, including 4 for Glutathione at a median tested purity of 99.62%.

Manufacturer
Peptide Technologies
View vendor profile
Source

Freedom Diagnostic

Source archived

We archived this certificate's source document — an immutable, SHA-256-fingerprinted copy held by TitrateLab (see Saved source document below). It stays verifiable even if the upstream page disappears.

Method
HPLC + MS
Test type
freedom_composite
Dose
200mg
Catalogued
2026-07-04
Saved source

Saved source document

sha256:a09e0d5cee246349… — immutable copy held by TitrateLab

Download the saved PDF (sha256 a09e0d5cee24…)
Related

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This certificate is part of TitrateLab's community-trust corpus. See more from Peptide Technologies or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →