Glutathione 99.8% Purity — Proper PepCertificate of Analysis · Independent third-party lab result

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

Tested purity 99.8% High purity · 99.78%

Dose vs label +6.1% Over the labeled dose

Evidence Source archived

Test date: 2026-06-17
Testing lab: Freedom Diagnostics
Batch / lot: GLT15K-1
Quantity: 1591.99 mg
Endotoxins: —
Assay method: HPLC + MS
Label dose: 1500mg

Context

How this result compares

This Glutathione certificate's tested purity of 99.78% ranks higher than 55% of the 401 Glutathione certificates with a purity result we have catalogued (median 99.74%).

Tested 2026-06-17 by Freedom Diagnostics via HPLC + MS. This test is newer than 86% of our catalogued Glutathione certificates.

Proper Pep has 12 certificates in our corpus, including 1 for Glutathione at a median tested purity of 99.78%.

Manufacturer

Proper Pep

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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.

Glutathione 99.8% Purity — Proper PepCertificate of Analysis · Independent third-party lab result

How this result compares

Freedom Diagnostic

Saved source document

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