Glutathione 98.4% Purity — Peptide GurusCertificate of Analysis · Independent third-party lab result
Glutathione tested 2026-05-19 by peptidegurus.com shows 98.391% purity via HPLC; overfilled by 12.3% vs. 500mg label claim. Batch ID unknown.
- Test date
- 2026-05-19
- Testing lab
- Janoshik
- Batch / lot
- —
- Quantity
- 561.52mg
- Endotoxins
- —
- Assay method
- HPLC
- Label dose
- 500mg
How this result compares
This Glutathione certificate's tested purity of 98.39% ranks higher than 3% of the 448 Glutathione certificates with a purity result we have catalogued (median 99.74%).
Tested 2026-05-19 by Janoshik via HPLC. This test is newer than 64% of our catalogued Glutathione certificates.
Peptide Gurus has 182 certificates in our corpus, including 1 for Glutathione at a median tested purity of 98.39%.
Janoshik (public)
URL referencedThis 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.
Verify on the upstream labOCR text Raw extracted text
Extracted via OCR. Names, emails, phone numbers, and street addresses are auto-redacted before display.
{
"peptide": "Glutathione",
"dose": "500mg",
"purity_pct": 98.391,
"purity_label": "98.391%",
"method": "HPLC",
"test_date": "2026-05-19",
"client": "[EMAIL_REDACTED]",
"notes": "Sample was tested twice.",
"label_qty": "500mg",
"tested_qty": "561.52mg",
"quantity_deviation_pct": 12.304,
"is_blend": false,
"components_json": "",
"ocr_confidence": 1.0
}