GHK-Cu 99.8% Purity — Peptide GurusCertificate of Analysis · Independent third-party lab result
Janoshik tested this GHK-Cu batch from PeptideGurus at 99.8% purity. Quantity matched the label within 1% (50.29mg tested vs 50mg label). The test is recent (under 3 months) and customers can cross-check on the lab's public verification URL. However, the report is missing details on the test method and endotoxin status.
- no endotoxin test
- vague purity language
- Test date
- 2026-02-26
- Testing lab
- Janoshik
- Batch / lot
- —
- Quantity
- 50.29 mg
- Endotoxins
- —
- Assay method
- —
- Label dose
- 50mg
How this result compares
This GHK-Cu certificate's tested purity of 99.80% ranks higher than 45% of the 2433 GHK-Cu certificates with a purity result we have catalogued (median 99.82%).
Tested 2026-02-26 by Janoshik. This test is newer than 51% of our catalogued GHK-Cu certificates.
Peptide Gurus has 181 certificates in our corpus, including 5 for GHK-Cu at a median tested purity of 99.78%.
Test report image
Janoshik (public)
Artifact capturedWe have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.
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": "GHK-Cu",
"dose": "50mg",
"purity_pct": 99.8,
"purity_label": "99.800%",
"method": "",
"test_date": "2026-02-26",
"client": "PeptideGurus",
"notes": "",
"label_qty": "50 mg",
"tested_qty": "50.29 mg",
"quantity_deviation_pct": 0.58,
"is_blend": false,
"components_json": "",
"ocr_confidence": 1.0
}