Glutathione × Petratide Science — Lab Test, April 2026
freedomdiagnosticstesting.com publishes a public verification portal. Any test attributed to this lab can be looked up and confirmed directly with the lab — so this result doesn't rest on our review alone.
This certificate carries no lookup code.
Test results
This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.
About this test
Label 750 mg · Lab measured 565.75 mg
75% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 141.4 mg using the measured mass, against 187.5 mg on the label — 25% less.
One vial from this lot was weighed by the laboratory, not yours. This page reports what the certificate says; it does not recommend a dose.
Independent HPLC purity analysis of Glutathione from petratidescience.com, performed by freedomdiagnosticstesting.com on April 30, 2026. Reported purity: 99.69%. Net content: 565.75 mg against 750 mg labeled (75% of label). Tested content is 25% below the labeled amount. Batch PS04-GLU750. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of Glutathione from petratidescience.com
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| PS11-GL1500 | 12 Dec 2025 | freedomdiagnosticstesting.com | 99.91% | 98% | Unverified |
Batches this shop has published a certificate for, newest first. A lot whose printed value cannot identify a batch is not listed.
Have you tested this peptide?
Submit your third-party lab test to help the community verify purity claims. Every report is reviewed before publication.
Community discussion