TitrateLab · Certificate of Analysis

Glutathione 99.6% Purity — Star Nutrasciences Inc.Certificate of Analysis · Independent third-party lab result

Tested purity 99.6% High purity · 99.63%
Dose vs label +4.1% Essentially at label
Evidence URL referenced
Test date
2026-06-01
Testing lab
Freedom Diagnostics
Batch / lot
GT433
Quantity
1561.29 mg
label 1500mg · tested 1561.29 mg
Endotoxins
Assay method
HPLC + MS
Label dose
1500mg
Context

How this result compares

This Glutathione certificate's tested purity of 99.63% ranks higher than 31% of the 401 Glutathione certificates with a purity result we have catalogued (median 99.74%).

Tested 2026-06-01 by Freedom Diagnostics via HPLC + MS. This test is newer than 77% of our catalogued Glutathione certificates.

Star Nutrasciences Inc. has 138 certificates in our corpus, including 2 for Glutathione at a median tested purity of 99.73%.

Manufacturer
Star Nutrasciences Inc.
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
Related

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