GHK-Cu 99.7% Purity — BarnCertificate of Analysis · Independent third-party lab result
Janoshik tested this GHK-Cu batch at 99.749% purity via HPLC. The test is recent (under 3 months) and customers can cross-check on the lab's public verification URL. However, the COA is missing a batch ID, label quantity, and endotoxin test results.
- no endotoxin test
- no batch ID
- no label quantity
- Test date
- 2026-04-20
- Testing lab
- Janoshik
- Batch / lot
- —
- Quantity
- 83.81 mg; 83.56 mg; 82.23 mg
- Endotoxins
- —
- Assay method
- HPLC
How this result compares
This GHK-Cu certificate's tested purity of 99.75% ranks higher than 36% of the 2433 GHK-Cu certificates with a purity result we have catalogued (median 99.82%).
Tested 2026-04-20 by Janoshik via HPLC. This test is newer than 66% of our catalogued GHK-Cu certificates.
Barn has 54 certificates in our corpus, including 3 for GHK-Cu at a median tested purity of 99.77%.
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": "", "purity_pct": 99.749, "purity_label": "99.785%; 99.710%; 99.754%.", "method": "HPLC", "test_date": "2026-04-20", "client": "[EMAIL_REDACTED]", "notes": "", "label_qty": "", "tested_qty": "83.81 mg; 83.56 mg; 82.23 mg", "quantity_deviation_pct": null, "is_blend": false, "components_json": "", "ocr_confidence": 0.92}