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

Retatrutide 99.8% Purity — Uther PeptideCertificate of Analysis · Independent third-party lab result

Tested purity 99.8% High purity · 99.827%
Dose vs label +6.4% Over the labeled dose
Evidence URL referenced Trust: medium
AI summary Third-party lab

Janoshik tested this retatrutide from utherpeptide.com at 99.827% purity via HPLC. The tested quantity of 42.55mg showed a 6.375% deviation from the 40mg label. The test is recent (3-6 months old), but the report does not include an endotoxin test. Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • quantity deviation (6.375%)
Test date
2026-02-10
Testing lab
Janoshik
Batch / lot
Quantity
42.55 mg
label 40mg · tested 42.55 mg
Endotoxins
Assay method
HPLC
Label dose
42.55mg
Context

How this result compares

This Retatrutide certificate's tested purity of 99.83% ranks higher than 49% of the 9821 Retatrutide certificates with a purity result we have catalogued (median 99.83%).

Tested 2026-02-10 by Janoshik via HPLC. This test is newer than 49% of our catalogued Retatrutide certificates.

Uther Peptide has 524 certificates in our corpus, including 67 for Retatrutide at a median tested purity of 99.81%.

Manufacturer
Uther Peptide
View vendor profile
Source

Janoshik (public)

URL referenced

This entry references an upstream lab URL we crawled. We did not save the artifact, so we can't prove the report still loads as it did when we catalogued it.

Verify on the upstream lab
Method
HPLC
Dose
42.55mg
Catalogued
2026-04-16
OCR text Raw extracted text

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

{
  "peptide": "Retatrutide",
  "dose": "40mg",
  "purity_pct": 99.827,
  "purity_label": "99.827%",
  "method": "",
  "test_date": "2026-02-10",
  "client": "utherpeptide.com",
  "notes": "",
  "label_qty": "40mg",
  "tested_qty": "42.55 mg",
  "quantity_deviation_pct": 6.375,
  "is_blend": false,
  "components_json": "",
  "ocr_confidence": 1.0
}
Related

Other Retatrutide certificates

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