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

Glutathione 97.2% Purity — ResearchPepsCertificate of Analysis · Independent third-party lab result

Tested purity 97.2% Acceptable purity · 97.213%
Dose vs label -3.7% Essentially at label
Evidence Source archived
Test date
2026-04-12
Testing lab
Freedom Diagnostics
Batch / lot
Quantity
1444.08 mg
label 1500mg · tested 1444.08 mg
Endotoxins
Assay method
HPLC + MS
Label dose
1500mg
Context

How this result compares

This Glutathione certificate's tested purity of 97.21% ranks higher than 3% of the 401 Glutathione certificates with a purity result we have catalogued (median 99.74%).

Tested 2026-04-12 by Freedom Diagnostics via HPLC + MS. This test is newer than 56% of our catalogued Glutathione certificates.

ResearchPeps has 50 certificates in our corpus, including 2 for Glutathione at a median tested purity of 98.38%.

Manufacturer
ResearchPeps
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
1500mg
Catalogued
2026-07-04
Saved source

Saved source document

sha256:3b6dc3481f522441… — immutable copy held by TitrateLab

Download the saved PDF (sha256 3b6dc3481f52…)
Related

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