Glutathione Vial 1500 mg Lot GLUT1500-003 (8X certificate): Certificate of Analysis (COA)
Peptira · tested Aug 4, 2026 by Freedom Diagnostics · Most recent COA
This page summarizes the third-party lab report for lot GLUT1500-003 of Glutathione Vial 1500 mg sold by Peptira. The lot number on this page should match the lot printed on the vial label. Don't rely on this summary alone: use the button to open the lab's own record and compare the lot, date and results.
Glutathione Vial 1500 mg lot GLUT1500-003 test results, explained
Every result printed on this certificate, as reported by Freedom Diagnostics, with a plain-English note on what the test measures. "Pass" and "specification" wording comes from the certificate; where the lab prints no pass/fail, we say so.
| Test | Result on the certificate | What it measures | This lot |
|---|---|---|---|
| HPLC purity | 99.84% · Per-vial HPLC purity: 99.85%, 99.79%, 99.89% | HPLC separates the sample into its components; purity is the share of the detected signal that sits in the main peak. On its own it doesn't show which molecule that peak is. That's what the identity test is for. | No pass/fail printed; reported value at or above 98% |
| Identity (LC-MS) | Confirmed · compound named: Glutathione | Mass spectrometry measures the molecular mass of what's in the vial and compares it with the declared compound. "Confirmed" means the lab found the expected compound. | Reported as matching the declared compound |
| Quantity (measured content) | 1476.90 mg (mean) · per vial: 1469.25 mg, 1484.11 mg, 1477.33 mg | How much peptide the lab measured in the vial, compared with the amount printed on the label. | 98% of the 1500 mg label amount |
| Appearance | White Lyophilized Powder | What the lab recorded before testing: the colour and physical form of the material. | Recorded |
| Endotoxin (LAL assay (USP <85>)) | Pass (LAL, USP <85>) | Bacterial endotoxins are fragments of bacterial cell walls. The LAL assay measures them in endotoxin units (EU/mL); a pass means the result was under the lab's limit. | Pass (as reported by the lab) |
| Microbial screen (PCR) | Pass | A DNA-based (PCR) screen for common microbial contamination. It is a rapid screen, not a full sterility test. Test as named on the certificate: Microbial DNA (PCR). | Pass (as reported by the lab) |
| Elemental impurities (heavy metals) | Pass | ICP-MS measures toxic elements such as arsenic, cadmium, lead and mercury. Test as named on the certificate: Elemental impurities As/Cd/Pb/Hg (ICP-MS). | Pass (as reported by the lab) |
| Fentanyl screen | No Fentanyl Detected | A screen for fentanyl contamination. Test as named on the certificate: Fentanyl screen. | Pass (as reported by the lab) |
Lot and report details
| Lot / batch number | GLUT1500-003 |
|---|---|
| Certificate | 8X (vendor's label for this certificate of the lot) |
| Product (as labeled by vendor) | Glutathione Vial 1500 mg |
| Labeled vial size | 1500 mg |
| Testing laboratory | Freedom Diagnostics |
| Sample received by lab | Jul 30, 2026 |
| Report date | Aug 4, 2026 |
| Method (as stated) | HPLC with UV detection coupled with mass spectrometry (LC-MS) |
| Search Code | Pept2607300861 |
| Lab-record check | On Oct 7, 2026 the vendor's PDF was byte-for-byte identical to the copy hosted on the lab's site. |
| Vendor | Peptira |
| Verify | Open Freedom Diagnostics's record ↗ |
Data notes: Vendor table labels this certificate '(X)'; file name says '8X'. Lab received 7/30/2026, reported 8/4/2026 (MM/DD/YYYY).
The certificate itself
About Freedom Diagnostics
A peptide testing lab in Franklin, Tennessee (per the lab's website) that publishes its certificates in a searchable online database.
Accreditation: No accreditation is printed on these certificates, and we found no published ISO/IEC 17025 accreditation for the lab (checked Oct 7, 2026).
Tests: On the certificates here: HPLC purity with LC-MS identity, net content and, where ordered, endotoxin (LAL), a microbial PCR screen and other screens.
How to verify: Search the Search Code on freedomdiagnosticstesting.com. The lab hosts its own PDF copy of each certificate, which should match the vendor's copy.
Open Freedom Diagnostics's record ↗Lab info from: freedomdiagnosticstesting.com · checked Oct 7, 2026.
Glutathione Vial 1500 mg lot history at Peptira
All 4 certificates we have for this product from Peptira, newest first. The chart plots HPLC purity by report date (lots without a purity figure are left out). This lot is highlighted.
| Lot | Report date | Lab | HPLC purity |
|---|---|---|---|
| GLUT1500-003 (8X) | Aug 4, 2026 | Freedom Diagnostics | 99.84% |
| GLUT1500-003 | Feb 10, 2026 | Freedom Diagnostics | 99.80% |
| GLUT1500-002 | Jan 11, 2026 | Freedom Diagnostics | 99.20% |
| GLUT1500-001 | Aug 29, 2025 | Janoshik | 99.97% |
What to check on your vial
- The lot number on the vial label reads GLUT1500-003, character for character.
- The product name and vial size on the label match Glutathione Vial 1500 mg (1500 mg).
- The lab's own record (freedomdiagnosticstesting.com, code Pept2607300861) shows the same lot, report date (Aug 4, 2026) and results as this page.
- The report date is a date you'd expect for your purchase: a much older certificate may belong to an earlier lot.
- The identity line names the compound you expect. If it's "Not reported", the certificate doesn't confirm which molecule is in the vial.
- The certificate is a clean document: no mismatched fonts, edited numbers or a missing verification code.
How to check this COA in under a minute
- Find the lot number on your vial label and confirm it reads GLUT1500-003.
- Open Freedom Diagnostics's record with the button above, or go to freedomdiagnosticstesting.com and enter Pept2607300861.
- Compare the lot number, test date, purity and identity result with the table above. They should be identical.
- New to COAs? Read How to read a peptide COA for what HPLC purity and mass spec identity mean.
Questions about lot GLUT1500-003
What HPLC purity did Glutathione Vial 1500 mg lot GLUT1500-003 test at?
Freedom Diagnostics reported 99.84% HPLC purity for lot GLUT1500-003 in a report dated Aug 4, 2026.
How do I verify the COA for lot GLUT1500-003?
Go to freedomdiagnosticstesting.com and enter the search code Pept2607300861. The lab's own record should show lot GLUT1500-003 with the same dates and results as this page.
Is lot GLUT1500-003 the newest Glutathione Vial 1500 mg lot from Peptira?
It's the most recent Glutathione Vial 1500 mg certificate we have on file from Peptira as of Oct 8, 2026. Vendors can ship a newer lot before its certificate is posted, so check your vial label.
Does this certificate apply to my vial?
Only if the lot number printed on your vial reads GLUT1500-003 exactly. A certificate of analysis covers one lot; it says nothing about other lots of the same product.
Other certificates for lot GLUT1500-003
Other lots and COAs
Glutathione Vial 1500 mg at Peptira
Lab-tested lot GLUT1500-003 · 99.84% HPLC purity · Freedom Diagnostics
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