TitrateLab · Certificate of Analysis

Glutathione 99.9% Purity — Welli LabsCertificate of Analysis · Independent third-party lab result

Tested purity 99.9% High purity · 99.92%
Dose vs label -3.6% Essentially at label
Evidence Source archived Blend
Test date
2026-01-21
Testing lab
Freedom Diagnostics
Batch / lot
WLGLT-1500-10001
Quantity
1445.72 mg
label 1500mg · tested 1445.72 mg
Endotoxins
Assay method
HPLC + MS
Label dose
1500mg
Context

How this result compares

This Glutathione certificate's tested purity of 99.92% ranks higher than 87% of the 401 Glutathione certificates with a purity result we have catalogued (median 99.74%).

Tested 2026-01-21 by Freedom Diagnostics via HPLC + MS. This test is newer than 34% of our catalogued Glutathione certificates.

Welli Labs has 87 certificates in our corpus, including 2 for Glutathione at a median tested purity of 99.78%.

Manufacturer
Welli Labs
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

sha256:3c71a1642f383ca3… — immutable copy held by TitrateLab

Download the saved PDF (sha256 3c71a1642f38…)
Related

Other Glutathione certificates

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