Retatrutide 99.4% Purity — GreyLabs (discord.gg/9bjdYNW8XY)Certificate of Analysis · Independent third-party lab result
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 date
- 2026-02-09
- Testing lab
- Janoshik
- Batch / lot
- —
- Quantity
- 22.58 mg
- Endotoxins
- —
- Assay method
- HPLC + MS
- Label dose
- 20mg
How this result compares
This Retatrutide certificate's tested purity of 99.41% ranks higher than 11% of the 9823 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2026-02-09 by Janoshik via HPLC + MS. This test is newer than 48% of our catalogued Retatrutide certificates.
GreyLabs (discord.gg/9bjdYNW8XY) has 1 certificate in our corpus, including 1 for Retatrutide at a median tested purity of 99.41%.
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": "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
}