All Retatrutide Certificate of Analysis results— 9826 COAs
TitrateLab · Certificate of Analysis

Retatrutide 99.1% Purity — GYCCertificate of Analysis · Independent third-party lab result

Tested purity 99.1% High purity · 99.068%; 99.182%.
Dose vs label +16.7% Over the labeled dose
Evidence Artifact captured Trust: medium
AI summary Third-party lab

Janoshik tested this retatrutide at 99.068% purity via HPLC. The tested quantity of 17.50mg was significantly higher than the 15mg label (16.67% deviation). Endotoxin status is unknown. The test is recent (under 3 months) and customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • quantity deviation (16.67%)
Test date
2026-02-12
Testing lab
Janoshik
Batch / lot
Quantity
17.50mg
label 15mg · tested 17.50mg
Endotoxins
Assay method
HPLC
Label dose
15mg
Context

How this result compares

This Retatrutide certificate's tested purity of 99.07% ranks higher than 5% of the 9821 Retatrutide certificates with a purity result we have catalogued (median 99.83%).

Tested 2026-02-12 by Janoshik via HPLC. This test is newer than 51% of our catalogued Retatrutide certificates.

GYC has 282 certificates in our corpus, including 77 for Retatrutide at a median tested purity of 99.72%.

Manufacturer
GYC
View vendor profile
Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Janoshik (public)

Artifact captured

We have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.

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Method
HPLC
Dose
15mg
Catalogued
2026-04-22
Artifact hash
a5f60334548dba65…
OCR text Raw extracted text

Extracted via OCR. Names, emails, phone numbers, and street addresses are auto-redacted before display.

{"peptide": "Retatrutide", "dose": "15mg", "purity_pct": 99.068, "purity_label": "99.068%; 99.182%.", "method": "HPLC", "test_date": "2026-02-12", "client": "G", "notes": "", "label_qty": "15mg", "tested_qty": "17.50mg", "quantity_deviation_pct": 16.67, "is_blend": false, "components_json": "", "ocr_confidence": 0.95}
Related

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This certificate is part of TitrateLab's community-trust corpus. See more from GYC or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →