This COA was tested by an independent third-party lab, Janoshik. The retatrutide showed 99.406% purity via HPLC + MS. The tested quantity was 12.9% over the 20mg label, and endotoxin status is unknown. The test is recent (3-6 months old), and customers can cross-check on Janoshik's public verification URL.
- no endotoxin test
- quantity deviation (12.9% over)
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 below.
Verify on upstream- Method
- HPLC + MS
- Dose
- 20mg
- Catalogued
- 2026-04-16
- Artifact hash
55b15ed39a85bfce…
OCR text
Raw extracted text
Raw extracted text
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{
"peptide": "Retatrutide",
"dose": "20mg",
"purity_pct": 99.406,
"purity_label": "99.406%",
"method": "",
"test_date": "2026-02-09",
"client": "GreyLabs",
"notes": "",
"label_qty": "20mg",
"tested_qty": "22.58 mg",
"quantity_deviation_pct": 12.9,
"is_blend": false,
"components_json": "",
"ocr_confidence": 1.0
}