Certificate record
Glutathione, lot ZCLa2608250018
Freedom Diagnostics Testing assayed lot ZCLa2608250018 of Glutathione from ZC Labs at 99.98% purity on 26 Aug 2026, reporting 1541.96 mg against a 1500 mg label, 2.8% above the labelled mass.
Assayed 26 Aug 2026 · Freedom Diagnostics Testing · ZC Labs · record id coa-zc-ZCLa2608250018
What the certificate reports
| Compound | Glutathione |
|---|---|
| Lot identifier | ZCLa2608250018 |
| Purity | 99.98% |
| Labelled mass | 1500 mg |
| Assayed mass | 1541.96 mg |
| Difference | 2.8% above the label |
| Assay date | 26 Aug 2026 |
| Testing laboratory | Freedom Diagnostics Testing |
| Who commissioned it | Published by the vendor. Scored as a claim, not as corroboration — only an independently commissioned assay counts as verified. |
| Source document | https://coas.freedomdiagnosticstesting.com/ZCLa2608250018.pdf |
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- Tesamorelin, lot ZCLa2608070015 99.96% · 9 Aug 2026
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Glutathione from other vendors
- Origin Labs, lot Orig2609030814 99.96% · Freedom Diagnostics Testing
- Vial Drop Labs, lot VDL-20260827-AKAD 99.99% · KMD Analytical (KMD Group LLC)
- ZC Labs, lot ZCLa2608240407 99.91% · Freedom Diagnostics Testing
- Vertex Labs, lot 2608190847 99.74% · Freedom Diagnostics Testing
- PeptidePlugs, lot 189-04-DK 99.93% · Freedom Diagnostics Testing
- Ascend Science, lot AS-GLUT600-2 99.33% · Kovera Labs and/or ILS Labs