Glutathione 99.8% Purity — Peptide FoundryCertificate of Analysis · Independent third-party lab result

Name: Glutathione COA — Peptide Foundry (99.8% purity)
Creator: Freedom Diagnostics
License: https://titratelab.com/terms

Tested purity 99.8% High purity · 99.836%

Dose vs label -1.6% Essentially at label

Evidence URL referenced

Test date: 2026-03-15
Testing lab: Freedom Diagnostics
Batch / lot: GLU15312
Quantity: 1475.71 mg
Endotoxins: —
Assay method: HPLC + MS
Label dose: 1500mg

Context

How this result compares

This Glutathione certificate's tested purity of 99.84% ranks higher than 65% of the 401 Glutathione certificates with a purity result we have catalogued (median 99.74%).

Tested 2026-03-15 by Freedom Diagnostics via HPLC + MS. This test is newer than 49% of our catalogued Glutathione certificates.

Peptide Foundry has 47 certificates in our corpus, including 2 for Glutathione at a median tested purity of 99.84%.

Manufacturer

Peptide Foundry

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
Dose: 1500mg
Catalogued: 2026-07-04

Other Glutathione certificates

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