TitrateLab · Certificate of Analysis

Glutathione 100.0% Purity — Midway GrayCertificate of Analysis · Independent third-party lab result

Tested purity 100.0% High purity · 99.967%
Dose vs label 503.21 mg · tested 503.21 mg
Evidence URL referenced
Test date
2025-12-08
Testing lab
Freedom Diagnostics
Batch / lot
Quantity
503.21 mg
Endotoxins
Assay method
HPLC + MS
Context

How this result compares

This Glutathione certificate's tested purity of 99.97% ranks higher than 97% of the 401 Glutathione certificates with a purity result we have catalogued (median 99.74%).

Tested 2025-12-08 by Freedom Diagnostics via HPLC + MS. This test is newer than 22% of our catalogued Glutathione certificates.

Midway Gray has 38 certificates in our corpus, including 2 for Glutathione at a median tested purity of 99.90%.

Manufacturer
Midway Gray
View vendor profile
Source

freedom_diagnostic

URL referenced

This entry references an upstream lab URL we crawled. We did not save the artifact, so we can't prove the report still loads as it did when we catalogued it.

Method
HPLC + MS
Test type
freedom_composite
Catalogued
2026-07-04
Related

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